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Sigma to Nucleon contractions
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ferben
154
tests/hadrons/Test_sigma_to_nucleon.cc
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154
tests/hadrons/Test_sigma_to_nucleon.cc
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: Tests/Hadrons/Test_hadrons_spectrum.cc
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Copyright (C) 2015-2018
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Author: Antonin Portelli <antonin.portelli@me.com>
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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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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Hadrons/Application.hpp>
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#include <Hadrons/Modules.hpp>
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using namespace Grid;
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using namespace Hadrons;
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int main(int argc, char *argv[])
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{
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// initialization //////////////////////////////////////////////////////////
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Grid_init(&argc, &argv);
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HadronsLogError.Active(GridLogError.isActive());
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HadronsLogWarning.Active(GridLogWarning.isActive());
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HadronsLogMessage.Active(GridLogMessage.isActive());
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HadronsLogIterative.Active(GridLogIterative.isActive());
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HadronsLogDebug.Active(GridLogDebug.isActive());
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LOG(Message) << "Grid initialized" << std::endl;
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// run setup ///////////////////////////////////////////////////////////////
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Application application;
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std::vector<std::string> flavour = {"l", "s", "c"};
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std::vector<double> mass = {.01, .04, .2 };
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// global parameters
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Application::GlobalPar globalPar;
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globalPar.trajCounter.start = 1500;
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globalPar.trajCounter.end = 1520;
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globalPar.trajCounter.step = 20;
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globalPar.runId = "test";
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application.setPar(globalPar);
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// gauge field
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application.createModule<MGauge::Unit>("gauge");
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// sources
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MSource::Point::Par ptPar;
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ptPar.position = "0 0 0 0";
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application.createModule<MSource::Point>("pt_0", ptPar);
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ptPar.position = "0 0 0 4";
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application.createModule<MSource::Point>("pt_4", ptPar);
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// sink
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MSink::Point::Par sinkPar;
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sinkPar.mom = "0 0 0";
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application.createModule<MSink::ScalarPoint>("sink", sinkPar);
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application.createModule<MSink::Point>("sink_spec", sinkPar);
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// set fermion boundary conditions to be periodic space, antiperiodic time.
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std::string boundary = "1 1 1 -1";
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std::string twist = "0. 0. 0. 0.";
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for (unsigned int i = 0; i < flavour.size(); ++i)
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{
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// actions
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MAction::DWF::Par actionPar;
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actionPar.gauge = "gauge";
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actionPar.Ls = 12;
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actionPar.M5 = 1.8;
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actionPar.mass = mass[i];
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actionPar.boundary = boundary;
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actionPar.twist = twist;
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application.createModule<MAction::DWF>("DWF_" + flavour[i], actionPar);
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// solvers
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MSolver::RBPrecCG::Par solverPar;
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solverPar.action = "DWF_" + flavour[i];
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solverPar.residual = 1.0e-8;
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solverPar.maxIteration = 10000;
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application.createModule<MSolver::RBPrecCG>("CG_" + flavour[i],
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solverPar);
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}
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// propagators
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MFermion::GaugeProp::Par quarkPar;
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quarkPar.solver = "CG_l";
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quarkPar.source = "pt_0";
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application.createModule<MFermion::GaugeProp>("Qpt_l_0", quarkPar);
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quarkPar.source = "pt_4";
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application.createModule<MFermion::GaugeProp>("Qpt_l_4", quarkPar);
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quarkPar.solver = "CG_s";
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quarkPar.source = "pt_0";
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application.createModule<MFermion::GaugeProp>("Qpt_s_0", quarkPar);
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//This should be a loop - how do I make this?
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quarkPar.solver = "CG_c";
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quarkPar.source = "pt_0";
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application.createModule<MFermion::GaugeProp>("Qpt_c_loop", quarkPar);
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quarkPar.solver = "CG_l";
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quarkPar.source = "pt_0";
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application.createModule<MFermion::GaugeProp>("Qpt_l_loop", quarkPar);
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MSink::Smear::Par smearPar;
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smearPar.q="Qpt_l_0";
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smearPar.sink = "sink_spec";
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application.createModule<MSink::Smear>("Qpt_u_spec",smearPar);
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MContraction::SigmaToNucleonEye::Par EyePar;
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EyePar.output = "SigmaToNucleon/Eye_u";
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EyePar.qq_loop = "Qpt_l_loop";
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EyePar.qu_spec = "Qpt_u_spec";
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EyePar.qd_xf = "Qpt_l_4";
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EyePar.qs_xi = "Qpt_s_0";
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EyePar.tOut = 0;
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EyePar.sink = "sink";
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application.createModule<MContraction::SigmaToNucleonEye>("SigmaToNucleonEye_u", EyePar);
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EyePar.output = "SigmaToNucleon/Eye_c";
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EyePar.qq_loop = "Qpt_c_loop";
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application.createModule<MContraction::SigmaToNucleonEye>("SigmaToNucleonEye_c", EyePar);
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MContraction::SigmaToNucleonNonEye::Par NonEyePar;
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NonEyePar.output = "SigmaToNucleon/NonEye";
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NonEyePar.qu_xi = "Qpt_l_0";
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NonEyePar.qu_xf = "Qpt_l_4";
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NonEyePar.qu_spec = "Qpt_u_spec";
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NonEyePar.qd_xf = "Qpt_l_4";
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NonEyePar.qs_xi = "Qpt_s_0";
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NonEyePar.tOut = 0;
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NonEyePar.sink = "sink";
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application.createModule<MContraction::SigmaToNucleonNonEye>("SigmaToNucleonNonEye", NonEyePar);
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// execution
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application.saveParameterFile("stn.xml");
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application.run();
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// epilogue
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LOG(Message) << "Grid is finalizing now" << std::endl;
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Grid_finalize();
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return EXIT_SUCCESS;
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}
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