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src/EvtGenModels/Evtbs2llGammaAmp.cpp
| Show First 20 Lines • Show All 372 Lines • ▼ Show 20 Lines | void Evtbs2llGammaAmp::CalcAmp( EvtParticle* parent, EvtAmp& amp, | ||||
| EvtComplex lsc11, lsc12; // spin structures for | EvtComplex lsc11, lsc12; // spin structures for | ||||
| EvtComplex lsc21, lsc22; // the leptonic scalar current | EvtComplex lsc21, lsc22; // the leptonic scalar current | ||||
| EvtTensor4C ltc11, ltc12; // spin structures for | EvtTensor4C ltc11, ltc12; // spin structures for | ||||
| EvtTensor4C ltc21, ltc22; // the leptonic tensor current | EvtTensor4C ltc21, ltc22; // the leptonic tensor current | ||||
| // B - and barB - mesons descriptors | // B - and barB - mesons descriptors | ||||
| static EvtIdSet bmesons( "anti-B0", "anti-B_s0" ); | static EvtIdSet bmesons{ "anti-B0", "anti-B_s0" }; | ||||
| static EvtIdSet bbarmesons( "B0", "B_s0" ); | static EvtIdSet bbarmesons{ "B0", "B_s0" }; | ||||
| EvtId parentID = parent->getId(); | EvtId parentID = parent->getId(); | ||||
| if ( bmesons.contains( parentID ) ) { | if ( bmesons.contains( parentID ) ) { | ||||
| // The amplitude for the decay barB -> gamma ell^+ ell^- or | // The amplitude for the decay barB -> gamma ell^+ ell^- or | ||||
| // b \bar q -> gamma ell^+ ell^- | // b \bar q -> gamma ell^+ ell^- | ||||
| T1 = -a_b2q * unit1 * dual( EvtGenFunctions::directProd( hatp, hatk ) ) - | T1 = -a_b2q * unit1 * dual( EvtGenFunctions::directProd( hatp, hatk ) ) - | ||||
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