/************************************************************************************* Grid physics library, www.github.com/paboyle/Grid Source file: Hadrons/Modules/MContraction/WeakNeutral4ptDisc.hpp Copyright (C) 2015-2018 Author: Antonin Portelli Author: Lanny91 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. See the full license in the file "LICENSE" in the top level distribution directory *************************************************************************************/ /* END LEGAL */ #ifndef Hadrons_MContraction_WeakNeutral4ptDisc_hpp_ #define Hadrons_MContraction_WeakNeutral4ptDisc_hpp_ #include BEGIN_HADRONS_NAMESPACE /****************************************************************************** * WeakNeutral4ptDisc * ******************************************************************************/ BEGIN_MODULE_NAMESPACE(MContraction) enum { neut_disc_1_diag = 0, neut_disc_2_diag = 1, n_neut_disc_diag = 2 }; // Neutral 4pt disconnected subdiagram contractions. #define MAKE_DISC_MESON(Q_1, Q_2, gamma) (Q_1*adj(Q_2)*g5*gamma) #define MAKE_DISC_LOOP(Q_LOOP, gamma) (Q_LOOP*gamma) #define MAKE_DISC_CURR(Q_c, gamma) (trace(Q_c*gamma)) MAKE_WEAK_MODULE(WeakNeutral4ptDisc) END_MODULE_NAMESPACE END_HADRONS_NAMESPACE #endif // Hadrons_MContraction_WeakNeutral4ptDisc_hpp_