mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-15 02:05:37 +00:00
Merge branch 'develop' into feature/hw-multigrid
This commit is contained in:
Peter Boyle
commit
77124d99d5
@ -7,6 +7,7 @@
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Copyright (C) 2019
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Author: Felix Erben <felix.erben@ed.ac.uk>
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Author: Raoul Hodgson <raoul.hodgson@ed.ac.uk>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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@ -58,9 +59,12 @@ public:
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const int parity,
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const int * wick_contractions,
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const bool * wick_contractions,
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robj &result);
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public:
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static void Wick_Contractions(std::string qi,
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std::string qf,
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bool* wick_contractions);
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static void ContractBaryons(const PropagatorField &q1_left,
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const PropagatorField &q2_left,
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const PropagatorField &q3_left,
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@ -68,8 +72,7 @@ public:
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const Gamma GammaB_left,
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const char * quarks_left,
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const char * quarks_right,
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const bool* wick_contractions,
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const int parity,
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ComplexField &baryon_corr);
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template <class mobj, class robj>
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@ -80,12 +83,61 @@ public:
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const Gamma GammaB_left,
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const char * quarks_left,
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const char * quarks_right,
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const bool* wick_contractions,
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const int parity,
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const int nt,
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robj &result);
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private:
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template <class mobj, class mobj2, class robj>
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static void Baryon_Gamma_3pt_Group1_Site(
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const mobj &Dq1_ti,
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const mobj2 &Dq2_spec,
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const mobj2 &Dq3_spec,
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const mobj &Dq4_tf,
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const Gamma GammaJ,
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const Gamma GammaBi,
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const Gamma GammaBf,
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int wick_contraction,
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robj &result);
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template <class mobj, class mobj2, class robj>
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static void Baryon_Gamma_3pt_Group2_Site(
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const mobj2 &Dq1_spec,
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const mobj &Dq2_ti,
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const mobj2 &Dq3_spec,
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const mobj &Dq4_tf,
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const Gamma GammaJ,
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const Gamma GammaBi,
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const Gamma GammaBf,
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int wick_contraction,
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robj &result);
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template <class mobj, class mobj2, class robj>
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static void Baryon_Gamma_3pt_Group3_Site(
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const mobj2 &Dq1_spec,
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const mobj2 &Dq2_spec,
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const mobj &Dq3_ti,
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const mobj &Dq4_tf,
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const Gamma GammaJ,
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const Gamma GammaBi,
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const Gamma GammaBf,
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int wick_contraction,
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robj &result);
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public:
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template <class mobj>
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static void Baryon_Gamma_3pt(
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const PropagatorField &q_ti,
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const mobj &Dq_spec1,
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const mobj &Dq_spec2,
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const PropagatorField &q_tf,
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int group,
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int wick_contraction,
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const Gamma GammaJ,
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const Gamma GammaBi,
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const Gamma GammaBf,
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SpinMatrixField &stn_corr);
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private:
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template <class mobj, class mobj2, class robj>
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static void Sigma_to_Nucleon_Q1_Eye_site(const mobj &Dq_loop,
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const mobj2 &Du_spec,
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const mobj &Dd_tf,
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@ -166,111 +218,137 @@ const Real BaryonUtils<FImpl>::epsilon_sgn[6] = {1.,1.,1.,-1.,-1.,-1.};
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template <class FImpl>
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template <class mobj, class robj>
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void BaryonUtils<FImpl>::baryon_site(const mobj &D1,
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const mobj &D2,
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const mobj &D3,
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const Gamma GammaA_left,
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const Gamma GammaB_left,
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const int parity,
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const int * wick_contraction,
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robj &result)
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const mobj &D2,
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const mobj &D3,
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const Gamma GammaA_i,
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const Gamma GammaB_i,
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const Gamma GammaA_f,
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const Gamma GammaB_f,
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const int parity,
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const bool * wick_contraction,
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robj &result)
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{
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Gamma g4(Gamma::Algebra::GammaT); //needed for parity P_\pm = 0.5*(1 \pm \gamma_4)
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auto gD1a = GammaA_left * GammaA_right * D1;
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auto gD1b = GammaA_left * g4 * GammaA_right * D1;
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auto pD1 = 0.5* (gD1a + (Real)parity * gD1b);
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auto gD3 = GammaB_right * D3;
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auto D2g = D2 * GammaB_left;
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auto pD1g = pD1 * GammaB_left;
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auto gD3g = gD3 * GammaB_left;
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for (int ie_left=0; ie_left < 6 ; ie_left++){
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int a_left = epsilon[ie_left][0]; //a
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int b_left = epsilon[ie_left][1]; //b
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int c_left = epsilon[ie_left][2]; //c
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for (int ie_right=0; ie_right < 6 ; ie_right++){
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int a_right = epsilon[ie_right][0]; //a'
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int b_right = epsilon[ie_right][1]; //b'
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int c_right = epsilon[ie_right][2]; //c'
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Real ee = epsilon_sgn[ie_left] * epsilon_sgn[ie_right];
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auto D1_GAi = D1 * GammaA_i;
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auto D1_GAi_g4 = D1_GAi * g4;
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auto D1_GAi_P = 0.5*(D1_GAi + (Real)parity * D1_GAi_g4);
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auto GAf_D1_GAi_P = GammaA_f * D1_GAi_P;
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auto GBf_D1_GAi_P = GammaB_f * D1_GAi_P;
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auto D2_GBi = D2 * GammaB_i;
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auto GBf_D2_GBi = GammaB_f * D2_GBi;
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auto GAf_D2_GBi = GammaA_f * D2_GBi;
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auto GBf_D3 = GammaB_f * D3;
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auto GAf_D3 = GammaA_f * D3;
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for (int ie_f=0; ie_f < 6 ; ie_f++){
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int a_f = epsilon[ie_f][0]; //a
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int b_f = epsilon[ie_f][1]; //b
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int c_f = epsilon[ie_f][2]; //c
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for (int ie_i=0; ie_i < 6 ; ie_i++){
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int a_i = epsilon[ie_i][0]; //a'
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int b_i = epsilon[ie_i][1]; //b'
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int c_i = epsilon[ie_i][2]; //c'
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Real ee = epsilon_sgn[ie_f] * epsilon_sgn[ie_i];
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//This is the \delta_{456}^{123} part
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if (wick_contraction[0]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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auto eepD1 = ee * pD1()(gamma_left,gamma_left)(c_right,c_left);
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto D2g_ab = D2g()(alpha_right,beta_left)(a_right,a_left);
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auto gD3_ab = gD3()(alpha_right,beta_left)(b_right,b_left);
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result()()() += eepD1*D2g_ab*gD3_ab;
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}}
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}
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}
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//This is the \delta_{456}^{231} part
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if (wick_contraction[1]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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auto gD3_ag = gD3()(alpha_right,gamma_left)(b_right,c_left);
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto eepD1g_gb = ee * pD1g()(gamma_left,beta_left)(c_right,a_left);
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auto D2_ab = D2()(alpha_right,beta_left)(a_right,b_left);
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result()()() += eepD1g_gb*D2_ab*gD3_ag;
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if (wick_contraction[0]){
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for (int rho=0; rho<Ns; rho++){
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auto GAf_D1_GAi_P_rr_cc = GAf_D1_GAi_P()(rho,rho)(c_f,c_i);
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for (int alpha_f=0; alpha_f<Ns; alpha_f++){
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for (int beta_i=0; beta_i<Ns; beta_i++){
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result()()() += ee * GAf_D1_GAi_P_rr_cc
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* D2_GBi ()(alpha_f,beta_i)(a_f,a_i)
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* GBf_D3 ()(alpha_f,beta_i)(b_f,b_i);
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}}
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}
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}}
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}
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//This is the \delta_{456}^{231} part
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if (wick_contraction[1]){
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for (int rho=0; rho<Ns; rho++){
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for (int alpha_f=0; alpha_f<Ns; alpha_f++){
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auto D1_GAi_P_ar_ac = D1_GAi_P()(alpha_f,rho)(a_f,c_i);
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for (int beta_i=0; beta_i<Ns; beta_i++){
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result()()() += ee * D1_GAi_P_ar_ac
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* GBf_D2_GBi ()(alpha_f,beta_i)(b_f,a_i)
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* GAf_D3 ()(rho,beta_i)(c_f,b_i);
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}
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}}
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}
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//This is the \delta_{456}^{312} part
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if (wick_contraction[2]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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auto D2_ag = D2()(alpha_right,gamma_left)(a_right,c_left);
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto eepD1_gb = ee * pD1()(gamma_left,beta_left)(c_right,b_left);
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auto gD3g_ab = gD3g()(alpha_right,beta_left)(b_right,a_left);
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result()()() += eepD1_gb*D2_ag*gD3g_ab;
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}
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}}
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if (wick_contraction[2]){
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for (int rho=0; rho<Ns; rho++){
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for (int alpha_f=0; alpha_f<Ns; alpha_f++){
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auto GBf_D1_GAi_P_ar_bc = GBf_D1_GAi_P()(alpha_f,rho)(b_f,c_i);
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for (int beta_i=0; beta_i<Ns; beta_i++){
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result()()() += ee * GBf_D1_GAi_P_ar_bc
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* GAf_D2_GBi ()(rho,beta_i)(c_f,a_i)
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* D3 ()(alpha_f,beta_i)(a_f,b_i);
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}
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}}
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}
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//This is the \delta_{456}^{132} part
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if (wick_contraction[3]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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auto eepD1 = ee * pD1()(gamma_left,gamma_left)(c_right,c_left);
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto D2_ab = D2()(alpha_right,beta_left)(a_right,b_left);
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auto gD3g_ab = gD3g()(alpha_right,beta_left)(b_right,a_left);
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result()()() -= eepD1*D2_ab*gD3g_ab;
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}}
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}
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if (wick_contraction[3]){
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for (int rho=0; rho<Ns; rho++){
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auto GAf_D1_GAi_P_rr_cc = GAf_D1_GAi_P()(rho,rho)(c_f,c_i);
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for (int alpha_f=0; alpha_f<Ns; alpha_f++){
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for (int beta_i=0; beta_i<Ns; beta_i++){
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result()()() -= ee * GAf_D1_GAi_P_rr_cc
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* GBf_D2_GBi ()(alpha_f,beta_i)(b_f,a_i)
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* D3 ()(alpha_f,beta_i)(a_f,b_i);
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}
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}}
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}
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//This is the \delta_{456}^{321} part
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if (wick_contraction[4]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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auto gD3_ag = gD3()(alpha_right,gamma_left)(b_right,c_left);
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto eepD1_gb = ee * pD1()(gamma_left,beta_left)(c_right,b_left);
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auto D2g_ab = D2g()(alpha_right,beta_left)(a_right,a_left);
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result()()() -= eepD1_gb*D2g_ab*gD3_ag;
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}
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}}
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if (wick_contraction[4]){
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for (int rho=0; rho<Ns; rho++){
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for (int alpha_f=0; alpha_f<Ns; alpha_f++){
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auto GBf_D1_GAi_P_ar_bc = GBf_D1_GAi_P()(alpha_f,rho)(b_f,c_i);
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for (int beta_i=0; beta_i<Ns; beta_i++){
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result()()() -= ee * GBf_D1_GAi_P_ar_bc
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* D2_GBi ()(alpha_f,beta_i)(a_f,a_i)
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* GAf_D3 ()(rho,beta_i)(c_f,b_i);
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}
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}}
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}
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//This is the \delta_{456}^{213} part
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if (wick_contraction[5]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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auto D2_ag = D2()(alpha_right,gamma_left)(a_right,c_left);
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto eepD1g_gb = ee * pD1g()(gamma_left,beta_left)(c_right,a_left);
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auto gD3_ab = gD3()(alpha_right,beta_left)(b_right,b_left);
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result()()() -= eepD1g_gb*D2_ag*gD3_ab;
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}
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}}
|
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if (wick_contraction[5]){
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for (int rho=0; rho<Ns; rho++){
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for (int alpha_f=0; alpha_f<Ns; alpha_f++){
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auto D1_GAi_P_ar_ac = D1_GAi_P()(alpha_f,rho)(a_f,c_i);
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for (int beta_i=0; beta_i<Ns; beta_i++){
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result()()() -= ee * D1_GAi_P_ar_ac
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* GAf_D2_GBi ()(rho,beta_i)(c_f,a_i)
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* GBf_D3 ()(alpha_f,beta_i)(b_f,b_i);
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}
|
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}}
|
||||
}
|
||||
}
|
||||
}}
|
||||
}
|
||||
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/* Computes which wick contractions should be performed for a *
|
||||
* baryon 2pt function given the initial and finals state quark *
|
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* flavours. *
|
||||
* The array wick_contractions must be of length 6 */
|
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template<class FImpl>
|
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void BaryonUtils<FImpl>::Wick_Contractions(std::string qi, std::string qf, bool* wick_contractions) {
|
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const int epsilon[6][3] = {{0,1,2},{1,2,0},{2,0,1},{0,2,1},{2,1,0},{1,0,2}};
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for (int ie=0; ie < 6 ; ie++) {
|
||||
wick_contractions[ie] = (qi.size() == 3 && qf.size() == 3
|
||||
&& qi[0] == qf[epsilon[ie][0]]
|
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&& qi[1] == qf[epsilon[ie][1]]
|
||||
&& qi[2] == qf[epsilon[ie][2]]);
|
||||
}
|
||||
}
|
||||
|
||||
/* The array wick_contractions must be of length 6. The order *
|
||||
* corresponds to the to that shown in the Hadrons documentation *
|
||||
* at https://aportelli.github.io/Hadrons-doc/#/mcontraction *
|
||||
* This can be computed from the quark flavours using the *
|
||||
* Wick_Contractions function above */
|
||||
template<class FImpl>
|
||||
void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
|
||||
const PropagatorField &q2_left,
|
||||
@ -279,8 +357,7 @@ void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
|
||||
const Gamma GammaB_left,
|
||||
const Gamma GammaA_right,
|
||||
const Gamma GammaB_right,
|
||||
const char * quarks_left,
|
||||
const char * quarks_right,
|
||||
const bool* wick_contractions,
|
||||
const int parity,
|
||||
ComplexField &baryon_corr)
|
||||
{
|
||||
@ -288,7 +365,6 @@ void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
|
||||
assert(Ns==4 && "Baryon code only implemented for N_spin = 4");
|
||||
assert(Nc==3 && "Baryon code only implemented for N_colour = 3");
|
||||
|
||||
std::cout << "Contraction <" << quarks_right[0] << quarks_right[1] << quarks_right[2] << "|" << quarks_left[0] << quarks_left[1] << quarks_left[2] << ">" << std::endl;
|
||||
std::cout << "GammaA (left) " << (GammaA_left.g) << std::endl;
|
||||
std::cout << "GammaB (left) " << (GammaB_left.g) << std::endl;
|
||||
std::cout << "GammaA (right) " << (GammaA_right.g) << std::endl;
|
||||
@ -298,10 +374,6 @@ void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
|
||||
|
||||
GridBase *grid = q1_left.Grid();
|
||||
|
||||
int wick_contraction[6];
|
||||
for (int ie=0; ie < 6 ; ie++)
|
||||
wick_contraction[ie] = (quarks_left[0] == quarks_right[epsilon[ie][0]] && quarks_left[1] == quarks_right[epsilon[ie][1]] && quarks_left[2] == quarks_right[epsilon[ie][2]]) ? 1 : 0;
|
||||
|
||||
autoView(vbaryon_corr, baryon_corr,CpuWrite);
|
||||
autoView( v1 , q1_left, CpuRead);
|
||||
autoView( v2 , q2_left, CpuRead);
|
||||
@ -311,10 +383,10 @@ void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
|
||||
bytes += grid->oSites() * (432.*sizeof(vComplex) + 126.*sizeof(int) + 36.*sizeof(Real));
|
||||
for (int ie=0; ie < 6 ; ie++){
|
||||
if(ie==0 or ie==3){
|
||||
bytes += grid->oSites() * (4.*sizeof(int) + 4752.*sizeof(vComplex)) * wick_contraction[ie];
|
||||
bytes += grid->oSites() * (4.*sizeof(int) + 4752.*sizeof(vComplex)) * wick_contractions[ie];
|
||||
}
|
||||
else{
|
||||
bytes += grid->oSites() * (64.*sizeof(int) + 5184.*sizeof(vComplex)) * wick_contraction[ie];
|
||||
bytes += grid->oSites() * (64.*sizeof(int) + 5184.*sizeof(vComplex)) * wick_contractions[ie];
|
||||
}
|
||||
}
|
||||
Real t=0.;
|
||||
@ -325,7 +397,7 @@ void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
|
||||
auto D2 = v2[ss];
|
||||
auto D3 = v3[ss];
|
||||
vobj result=Zero();
|
||||
baryon_site(D1,D2,D3,GammaA_left,GammaB_left,GammaA_right,GammaB_right,parity,wick_contraction,result);
|
||||
baryon_site(D1,D2,D3,GammaA_left,GammaB_left,GammaA_right,GammaB_right,parity,wick_contractions,result);
|
||||
vbaryon_corr[ss] = result;
|
||||
} );//end loop over lattice sites
|
||||
|
||||
@ -334,6 +406,12 @@ void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
|
||||
std::cout << std::setw(10) << bytes/t*1.0e6/1024/1024/1024 << " GB/s " << std::endl;
|
||||
|
||||
}
|
||||
|
||||
/* The array wick_contractions must be of length 6. The order *
|
||||
* corresponds to the to that shown in the Hadrons documentation *
|
||||
* at https://aportelli.github.io/Hadrons-doc/#/mcontraction *
|
||||
* This can also be computed from the quark flavours using the *
|
||||
* Wick_Contractions function above */
|
||||
template <class FImpl>
|
||||
template <class mobj, class robj>
|
||||
void BaryonUtils<FImpl>::ContractBaryons_Sliced(const mobj &D1,
|
||||
@ -343,16 +421,15 @@ void BaryonUtils<FImpl>::ContractBaryons_Sliced(const mobj &D1,
|
||||
const Gamma GammaB_left,
|
||||
const Gamma GammaA_right,
|
||||
const Gamma GammaB_right,
|
||||
const char * quarks_left,
|
||||
const char * quarks_right,
|
||||
const bool* wick_contractions,
|
||||
const int parity,
|
||||
const int nt,
|
||||
robj &result)
|
||||
{
|
||||
|
||||
assert(Ns==4 && "Baryon code only implemented for N_spin = 4");
|
||||
assert(Nc==3 && "Baryon code only implemented for N_colour = 3");
|
||||
|
||||
std::cout << "Contraction <" << quarks_right[0] << quarks_right[1] << quarks_right[2] << "|" << quarks_left[0] << quarks_left[1] << quarks_left[2] << ">" << std::endl;
|
||||
std::cout << "GammaA (left) " << (GammaA_left.g) << std::endl;
|
||||
std::cout << "GammaB (left) " << (GammaB_left.g) << std::endl;
|
||||
std::cout << "GammaA (right) " << (GammaA_right.g) << std::endl;
|
||||
@ -360,17 +437,347 @@ void BaryonUtils<FImpl>::ContractBaryons_Sliced(const mobj &D1,
|
||||
|
||||
assert(parity==1 || parity == -1 && "Parity must be +1 or -1");
|
||||
|
||||
int wick_contraction[6];
|
||||
for (int ie=0; ie < 6 ; ie++)
|
||||
wick_contraction[ie] = (quarks_left[0] == quarks_right[epsilon[ie][0]] && quarks_left[1] == quarks_right[epsilon[ie][1]] && quarks_left[2] == quarks_right[epsilon[ie][2]]) ? 1 : 0;
|
||||
|
||||
result=Zero();
|
||||
baryon_site<decltype(D1),decltype(result)>(D1,D2,D3,GammaA_left,GammaB_left,GammaA_right,GammaB_right,parity,wick_contraction,result);
|
||||
for (int t=0; t<nt; t++) {
|
||||
baryon_site(D1[t],D2[t],D3[t],GammaA_left,GammaB_left,GammaA_right,GammaB_right,parity,wick_contractions,result[t]);
|
||||
}
|
||||
}
|
||||
|
||||
/***********************************************************************
|
||||
* End of Baryon 2pt-function code. *
|
||||
* *
|
||||
* The following code is for baryonGamma3pt function *
|
||||
**********************************************************************/
|
||||
|
||||
/* Dq1_ti is a quark line from t_i to t_J
|
||||
* Dq2_spec is a quark line from t_i to t_f
|
||||
* Dq3_spec is a quark line from t_i to t_f
|
||||
* Dq4_tf is a quark line from t_f to t_J */
|
||||
template<class FImpl>
|
||||
template <class mobj, class mobj2, class robj>
|
||||
void BaryonUtils<FImpl>::Baryon_Gamma_3pt_Group1_Site(
|
||||
const mobj &Dq1_ti,
|
||||
const mobj2 &Dq2_spec,
|
||||
const mobj2 &Dq3_spec,
|
||||
const mobj &Dq4_tf,
|
||||
const Gamma GammaJ,
|
||||
const Gamma GammaBi,
|
||||
const Gamma GammaBf,
|
||||
int wick_contraction,
|
||||
robj &result)
|
||||
{
|
||||
Gamma g5(Gamma::Algebra::Gamma5);
|
||||
|
||||
auto adjD4_g_D1 = g5 * adj(Dq4_tf) * g5 * GammaJ * Dq1_ti;
|
||||
auto Gf_adjD4_g_D1 = GammaBf * adjD4_g_D1;
|
||||
auto D2_Gi = Dq2_spec * GammaBi;
|
||||
auto Gf_D2_Gi = GammaBf * D2_Gi;
|
||||
auto Gf_D3 = GammaBf * Dq3_spec;
|
||||
|
||||
int a_f, b_f, c_f;
|
||||
int a_i, b_i, c_i;
|
||||
|
||||
Real ee;
|
||||
|
||||
for (int ie_f=0; ie_f < 6 ; ie_f++){
|
||||
a_f = epsilon[ie_f][0]; //a
|
||||
b_f = epsilon[ie_f][1]; //b
|
||||
c_f = epsilon[ie_f][2]; //c
|
||||
for (int ie_i=0; ie_i < 6 ; ie_i++){
|
||||
a_i = epsilon[ie_i][0]; //a'
|
||||
b_i = epsilon[ie_i][1]; //b'
|
||||
c_i = epsilon[ie_i][2]; //c'
|
||||
|
||||
ee = epsilon_sgn[ie_f] * epsilon_sgn[ie_i];
|
||||
|
||||
for (int alpha_f=0; alpha_f<Ns; alpha_f++){
|
||||
for (int beta_i=0; beta_i<Ns; beta_i++){
|
||||
auto D2_Gi_ab_aa = D2_Gi ()(alpha_f,beta_i)(a_f,a_i);
|
||||
auto Gf_D3_ab_bb = Gf_D3 ()(alpha_f,beta_i)(b_f,b_i);
|
||||
auto Gf_D2_Gi_ab_ba = Gf_D2_Gi ()(alpha_f,beta_i)(b_f,a_i);
|
||||
auto Dq3_spec_ab_ab = Dq3_spec ()(alpha_f,beta_i)(a_f,b_i);
|
||||
|
||||
for (int gamma_i=0; gamma_i<Ns; gamma_i++){
|
||||
auto ee_adjD4_g_D1_ag_ac = ee * adjD4_g_D1 ()(alpha_f,gamma_i)(a_f,c_i);
|
||||
auto ee_Gf_adjD4_g_D1_ag_bc = ee * Gf_adjD4_g_D1()(alpha_f,gamma_i)(b_f,c_i);
|
||||
for (int gamma_f=0; gamma_f<Ns; gamma_f++){
|
||||
auto ee_adjD4_g_D1_gg_cc = ee * adjD4_g_D1 ()(gamma_f,gamma_i)(c_f,c_i);
|
||||
auto Dq3_spec_gb_cb = Dq3_spec ()(gamma_f,beta_i)(c_f,b_i);
|
||||
auto D2_Gi_gb_ca = D2_Gi ()(gamma_f,beta_i)(c_f,a_i);
|
||||
|
||||
|
||||
if(wick_contraction == 1) { // Do contraction I1
|
||||
result()(gamma_f,gamma_i)() -= ee_adjD4_g_D1_gg_cc
|
||||
* D2_Gi_ab_aa
|
||||
* Gf_D3_ab_bb;
|
||||
}
|
||||
if(wick_contraction == 2) { // Do contraction I2
|
||||
result()(gamma_f,gamma_i)() -= ee_adjD4_g_D1_ag_ac
|
||||
* Gf_D2_Gi_ab_ba
|
||||
* Dq3_spec_gb_cb;
|
||||
}
|
||||
if(wick_contraction == 3) { // Do contraction I3
|
||||
result()(gamma_f,gamma_i)() -= ee_Gf_adjD4_g_D1_ag_bc
|
||||
* D2_Gi_gb_ca
|
||||
* Dq3_spec_ab_ab;
|
||||
}
|
||||
if(wick_contraction == 4) { // Do contraction I4
|
||||
result()(gamma_f,gamma_i)() += ee_adjD4_g_D1_gg_cc
|
||||
* Gf_D2_Gi_ab_ba
|
||||
* Dq3_spec_ab_ab;
|
||||
}
|
||||
if(wick_contraction == 5) { // Do contraction I5
|
||||
result()(gamma_f,gamma_i)() += ee_Gf_adjD4_g_D1_ag_bc
|
||||
* D2_Gi_ab_aa
|
||||
* Dq3_spec_gb_cb;
|
||||
}
|
||||
if(wick_contraction == 6) { // Do contraction I6
|
||||
result()(gamma_f,gamma_i)() += ee_adjD4_g_D1_ag_ac
|
||||
* D2_Gi_gb_ca
|
||||
* Gf_D3_ab_bb;
|
||||
}
|
||||
}}
|
||||
}}
|
||||
}}
|
||||
}
|
||||
|
||||
/* Dq1_spec is a quark line from t_i to t_f
|
||||
* Dq2_ti is a quark line from t_i to t_J
|
||||
* Dq3_spec is a quark line from t_i to t_f
|
||||
* Dq4_tf is a quark line from t_f to t_J */
|
||||
template<class FImpl>
|
||||
template <class mobj, class mobj2, class robj>
|
||||
void BaryonUtils<FImpl>::Baryon_Gamma_3pt_Group2_Site(
|
||||
const mobj2 &Dq1_spec,
|
||||
const mobj &Dq2_ti,
|
||||
const mobj2 &Dq3_spec,
|
||||
const mobj &Dq4_tf,
|
||||
const Gamma GammaJ,
|
||||
const Gamma GammaBi,
|
||||
const Gamma GammaBf,
|
||||
int wick_contraction,
|
||||
robj &result)
|
||||
{
|
||||
Gamma g5(Gamma::Algebra::Gamma5);
|
||||
|
||||
auto adjD4_g_D2_Gi = g5 * adj(Dq4_tf) * g5 * GammaJ * Dq2_ti * GammaBi;
|
||||
auto Gf_adjD4_g_D2_Gi = GammaBf * adjD4_g_D2_Gi;
|
||||
auto Gf_D1 = GammaBf * Dq1_spec;
|
||||
auto Gf_D3 = GammaBf * Dq3_spec;
|
||||
|
||||
int a_f, b_f, c_f;
|
||||
int a_i, b_i, c_i;
|
||||
|
||||
Real ee;
|
||||
|
||||
for (int ie_f=0; ie_f < 6 ; ie_f++){
|
||||
a_f = epsilon[ie_f][0]; //a
|
||||
b_f = epsilon[ie_f][1]; //b
|
||||
c_f = epsilon[ie_f][2]; //c
|
||||
for (int ie_i=0; ie_i < 6 ; ie_i++){
|
||||
a_i = epsilon[ie_i][0]; //a'
|
||||
b_i = epsilon[ie_i][1]; //b'
|
||||
c_i = epsilon[ie_i][2]; //c'
|
||||
|
||||
ee = epsilon_sgn[ie_f] * epsilon_sgn[ie_i];
|
||||
|
||||
for (int alpha_f=0; alpha_f<Ns; alpha_f++){
|
||||
for (int beta_i=0; beta_i<Ns; beta_i++){
|
||||
auto adjD4_g_D2_Gi_ab_aa = adjD4_g_D2_Gi ()(alpha_f,beta_i)(a_f,a_i);
|
||||
auto Gf_D3_ab_bb = Gf_D3 ()(alpha_f,beta_i)(b_f,b_i);
|
||||
auto Gf_adjD4_g_D2_Gi_ab_ba = Gf_adjD4_g_D2_Gi ()(alpha_f,beta_i)(b_f,a_i);
|
||||
auto Dq3_spec_ab_ab = Dq3_spec ()(alpha_f,beta_i)(a_f,b_i);
|
||||
|
||||
for (int gamma_i=0; gamma_i<Ns; gamma_i++){
|
||||
auto ee_Dq1_spec_ag_ac = ee * Dq1_spec ()(alpha_f,gamma_i)(a_f,c_i);
|
||||
auto ee_Gf_D1_ag_bc = ee * Gf_D1 ()(alpha_f,gamma_i)(b_f,c_i);
|
||||
for (int gamma_f=0; gamma_f<Ns; gamma_f++){
|
||||
auto ee_Dq1_spec_gg_cc = ee * Dq1_spec ()(gamma_f,gamma_i)(c_f,c_i);
|
||||
auto Dq3_spec_gb_cb = Dq3_spec ()(gamma_f,beta_i)(c_f,b_i);
|
||||
auto adjD4_g_D2_Gi_gb_ca = adjD4_g_D2_Gi ()(gamma_f,beta_i)(c_f,a_i);
|
||||
|
||||
if(wick_contraction == 1) { // Do contraction II1
|
||||
result()(gamma_f,gamma_i)() -= ee_Dq1_spec_gg_cc
|
||||
* adjD4_g_D2_Gi_ab_aa
|
||||
* Gf_D3_ab_bb;
|
||||
}
|
||||
if(wick_contraction == 2) { // Do contraction II2
|
||||
result()(gamma_f,gamma_i)() -= ee_Dq1_spec_ag_ac
|
||||
* Gf_adjD4_g_D2_Gi_ab_ba
|
||||
* Dq3_spec_gb_cb;
|
||||
}
|
||||
if(wick_contraction == 3) { // Do contraction II3
|
||||
result()(gamma_f,gamma_i)() -= ee_Gf_D1_ag_bc
|
||||
* adjD4_g_D2_Gi_gb_ca
|
||||
* Dq3_spec_ab_ab;
|
||||
}
|
||||
if(wick_contraction == 4) { // Do contraction II4
|
||||
result()(gamma_f,gamma_i)() += ee_Dq1_spec_gg_cc
|
||||
* Gf_adjD4_g_D2_Gi_ab_ba
|
||||
* Dq3_spec_ab_ab;
|
||||
}
|
||||
if(wick_contraction == 5) { // Do contraction II5
|
||||
result()(gamma_f,gamma_i)() += ee_Gf_D1_ag_bc
|
||||
* adjD4_g_D2_Gi_ab_aa
|
||||
* Dq3_spec_gb_cb;
|
||||
}
|
||||
if(wick_contraction == 6) { // Do contraction II6
|
||||
result()(gamma_f,gamma_i)() += ee_Dq1_spec_ag_ac
|
||||
* adjD4_g_D2_Gi_gb_ca
|
||||
* Gf_D3_ab_bb;
|
||||
}
|
||||
}}
|
||||
}}
|
||||
}}
|
||||
}
|
||||
|
||||
/* Dq1_spec is a quark line from t_i to t_f
|
||||
* Dq2_spec is a quark line from t_i to t_f
|
||||
* Dq3_ti is a quark line from t_i to t_J
|
||||
* Dq4_tf is a quark line from t_f to t_J */
|
||||
template<class FImpl>
|
||||
template <class mobj, class mobj2, class robj>
|
||||
void BaryonUtils<FImpl>::Baryon_Gamma_3pt_Group3_Site(
|
||||
const mobj2 &Dq1_spec,
|
||||
const mobj2 &Dq2_spec,
|
||||
const mobj &Dq3_ti,
|
||||
const mobj &Dq4_tf,
|
||||
const Gamma GammaJ,
|
||||
const Gamma GammaBi,
|
||||
const Gamma GammaBf,
|
||||
int wick_contraction,
|
||||
robj &result)
|
||||
{
|
||||
Gamma g5(Gamma::Algebra::Gamma5);
|
||||
|
||||
auto adjD4_g_D3 = g5 * adj(Dq4_tf) * g5 * GammaJ * Dq3_ti;
|
||||
auto Gf_adjD4_g_D3 = GammaBf * adjD4_g_D3;
|
||||
auto Gf_D1 = GammaBf * Dq1_spec;
|
||||
auto D2_Gi = Dq2_spec * GammaBi;
|
||||
auto Gf_D2_Gi = GammaBf * D2_Gi;
|
||||
|
||||
int a_f, b_f, c_f;
|
||||
int a_i, b_i, c_i;
|
||||
|
||||
Real ee;
|
||||
|
||||
for (int ie_f=0; ie_f < 6 ; ie_f++){
|
||||
a_f = epsilon[ie_f][0]; //a
|
||||
b_f = epsilon[ie_f][1]; //b
|
||||
c_f = epsilon[ie_f][2]; //c
|
||||
for (int ie_i=0; ie_i < 6 ; ie_i++){
|
||||
a_i = epsilon[ie_i][0]; //a'
|
||||
b_i = epsilon[ie_i][1]; //b'
|
||||
c_i = epsilon[ie_i][2]; //c'
|
||||
|
||||
ee = epsilon_sgn[ie_f] * epsilon_sgn[ie_i];
|
||||
|
||||
for (int alpha_f=0; alpha_f<Ns; alpha_f++){
|
||||
for (int beta_i=0; beta_i<Ns; beta_i++){
|
||||
auto D2_Gi_ab_aa = D2_Gi ()(alpha_f,beta_i)(a_f,a_i);
|
||||
auto Gf_adjD4_g_D3_ab_bb = Gf_adjD4_g_D3 ()(alpha_f,beta_i)(b_f,b_i);
|
||||
auto Gf_D2_Gi_ab_ba = Gf_D2_Gi ()(alpha_f,beta_i)(b_f,a_i);
|
||||
auto adjD4_g_D3_ab_ab = adjD4_g_D3 ()(alpha_f,beta_i)(a_f,b_i);
|
||||
|
||||
for (int gamma_i=0; gamma_i<Ns; gamma_i++) {
|
||||
auto ee_Dq1_spec_ag_ac = ee * Dq1_spec ()(alpha_f,gamma_i)(a_f,c_i);
|
||||
auto ee_Gf_D1_ag_bc = ee * Gf_D1 ()(alpha_f,gamma_i)(b_f,c_i);
|
||||
for (int gamma_f=0; gamma_f<Ns; gamma_f++) {
|
||||
auto ee_Dq1_spec_gg_cc = ee * Dq1_spec ()(gamma_f,gamma_i)(c_f,c_i);
|
||||
auto adjD4_g_D3_gb_cb = adjD4_g_D3 ()(gamma_f,beta_i)(c_f,b_i);
|
||||
auto D2_Gi_gb_ca = D2_Gi ()(gamma_f,beta_i)(c_f,a_i);
|
||||
|
||||
if(wick_contraction == 1) { // Do contraction III1
|
||||
result()(gamma_f,gamma_i)() -= ee_Dq1_spec_gg_cc
|
||||
* D2_Gi_ab_aa
|
||||
* Gf_adjD4_g_D3_ab_bb;
|
||||
}
|
||||
if(wick_contraction == 2) { // Do contraction III2
|
||||
result()(gamma_f,gamma_i)() -= ee_Dq1_spec_ag_ac
|
||||
* Gf_D2_Gi_ab_ba
|
||||
* adjD4_g_D3_gb_cb;
|
||||
}
|
||||
if(wick_contraction == 3) { // Do contraction III3
|
||||
result()(gamma_f,gamma_i)() -= ee_Gf_D1_ag_bc
|
||||
* D2_Gi_gb_ca
|
||||
* adjD4_g_D3_ab_ab;
|
||||
}
|
||||
if(wick_contraction == 4) { // Do contraction III4
|
||||
result()(gamma_f,gamma_i)() += ee_Dq1_spec_gg_cc
|
||||
* Gf_D2_Gi_ab_ba
|
||||
* adjD4_g_D3_ab_ab;
|
||||
}
|
||||
if(wick_contraction == 5) { // Do contraction III5
|
||||
result()(gamma_f,gamma_i)() += ee_Gf_D1_ag_bc
|
||||
* D2_Gi_ab_aa
|
||||
* adjD4_g_D3_gb_cb;
|
||||
}
|
||||
if(wick_contraction == 6) { // Do contraction III6
|
||||
result()(gamma_f,gamma_i)() += ee_Dq1_spec_ag_ac
|
||||
* D2_Gi_gb_ca
|
||||
* Gf_adjD4_g_D3_ab_bb;
|
||||
}
|
||||
}}
|
||||
}}
|
||||
}}
|
||||
}
|
||||
|
||||
/* The group indicates which inital state quarks the current is *
|
||||
* connected to. It must be in the range 1-3. *
|
||||
* The wick_contraction must be in the range 1-6 correspond to *
|
||||
* the contractions given in the Hadrons documentation at *
|
||||
* https://aportelli.github.io/Hadrons-doc/#/mcontraction */
|
||||
template<class FImpl>
|
||||
template <class mobj>
|
||||
void BaryonUtils<FImpl>::Baryon_Gamma_3pt(
|
||||
const PropagatorField &q_ti,
|
||||
const mobj &Dq_spec1,
|
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const mobj &Dq_spec2,
|
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const PropagatorField &q_tf,
|
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int group,
|
||||
int wick_contraction,
|
||||
const Gamma GammaJ,
|
||||
const Gamma GammaBi,
|
||||
const Gamma GammaBf,
|
||||
SpinMatrixField &stn_corr)
|
||||
{
|
||||
GridBase *grid = q_tf.Grid();
|
||||
|
||||
autoView( vcorr, stn_corr, CpuWrite);
|
||||
autoView( vq_ti , q_ti, CpuRead);
|
||||
autoView( vq_tf , q_tf, CpuRead);
|
||||
|
||||
if (group == 1) {
|
||||
accelerator_for(ss, grid->oSites(), grid->Nsimd(), {
|
||||
auto Dq_ti = vq_ti[ss];
|
||||
auto Dq_tf = vq_tf[ss];
|
||||
sobj result=Zero();
|
||||
Baryon_Gamma_3pt_Group1_Site(Dq_ti,Dq_spec1,Dq_spec2,Dq_tf,GammaJ,GammaBi,GammaBf,wick_contraction,result);
|
||||
vcorr[ss] += result;
|
||||
});//end loop over lattice sites
|
||||
} else if (group == 2) {
|
||||
accelerator_for(ss, grid->oSites(), grid->Nsimd(), {
|
||||
auto Dq_ti = vq_ti[ss];
|
||||
auto Dq_tf = vq_tf[ss];
|
||||
sobj result=Zero();
|
||||
Baryon_Gamma_3pt_Group2_Site(Dq_spec1,Dq_ti,Dq_spec2,Dq_tf,GammaJ,GammaBi,GammaBf,wick_contraction,result);
|
||||
vcorr[ss] += result;
|
||||
});//end loop over lattice sites
|
||||
} else if (group == 3) {
|
||||
accelerator_for(ss, grid->oSites(), grid->Nsimd(), {
|
||||
auto Dq_ti = vq_ti[ss];
|
||||
auto Dq_tf = vq_tf[ss];
|
||||
sobj result=Zero();
|
||||
Baryon_Gamma_3pt_Group3_Site(Dq_spec1,Dq_spec2,Dq_ti,Dq_tf,GammaJ,GammaBi,GammaBf,wick_contraction,result);
|
||||
|
||||
vcorr[ss] += result;
|
||||
});//end loop over lattice sites
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
* End of BaryonGamma3pt-function code. *
|
||||
* *
|
||||
* The following code is for Sigma -> N rare hypeon decays *
|
||||
**********************************************************************/
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user