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ParticleDatabase: Update Lambda(1520) info according to the latest Pythia8 #12896

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Merged
benedikt-voelkel merged 11 commits into from
Mar 22, 2024
Merged

ParticleDatabase: Update Lambda(1520) info according to the latest Pythia8 #12896

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f6aa24b
Update and modify Lambda1520 case
BongHwi Mar 19, 2024
8e80469
Please consider the following formatting changes
alibuild Mar 20, 2024
1d20cd5
Merge pull request #1 from alibuild/alibot-cleanup-12896
BongHwi Mar 20, 2024
9f9f953
Update the variables
BongHwi Mar 20, 2024
c598d36
Add new resonances
BongHwi Mar 20, 2024
79c7ddc
Merge branch 'ResoInjectNew' into ResoLambdaPDG
BongHwi Mar 22, 2024
ce36613
Merge branch 'ResoLambdaPDG' of github.com:BongHwi/AliceO2 into ResoL…
BongHwi Mar 22, 2024
7ec1dbf
Remove duplicated L*
BongHwi Mar 22, 2024
b2f098e
Remove duplicated L*
BongHwi Mar 22, 2024
a4f8661
Please consider the following formatting changes
alibuild Mar 22, 2024
b22e84f
Merge pull request #2 from alibuild/alibot-cleanup-12896
BongHwi Mar 22, 2024
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37 changes: 37 additions & 0 deletions DataFormats/simulation/include/SimulationDataFormat/O2DatabasePDG.h
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Original file line number Diff line number Diff line change
Expand Up @@ -470,6 +470,43 @@ inline void O2DatabasePDG::addALICEParticles(TDatabasePDG* db)
0.185, 0, "Resonance", ionCode);
}

// Lambda(1520)0
ionCode = 102134;
if (!db->GetParticle(ionCode)) {
db->AddParticle("Lambda_1520_0", "Lambda_1520_0", 1.5195, kFALSE, 0.0156, 0, "Resonance", ionCode);
}
if (!db->GetParticle(-ionCode)) {
db->AddParticle("AntiLambda_1520_0", "AntiLambda_1520_0", 1.5195, kFALSE, 0.0156, 0, "Resonance", -ionCode);
}

// f1 study
ionCode = 20223;
if (!db->GetParticle(ionCode)) {
db->AddParticle("f1_1285", "f1_1285", 1.28210, kFALSE, 0.02420, 0, "Resonance", ionCode);
}
ionCode = 20333;
if (!db->GetParticle(ionCode)) {
db->AddParticle("f1_1420", "f1_1420", 1.42640, kFALSE, 0.05490, 0, "Resonance", ionCode);
}

// glueball hunting
ionCode = 10221;
if (!db->GetParticle(ionCode)) {
db->AddParticle("f0_1370", "f0_1370", 1.37, kFALSE, 0.200, 0, "Resonance", ionCode);
}
ionCode = 9030221;
if (!db->GetParticle(ionCode)) {
db->AddParticle("f0_1500", "f0_1500", 1.500, kFALSE, 0.112, 0, "Resonance", ionCode);
}
ionCode = 10331;
if (!db->GetParticle(ionCode)) {
db->AddParticle("f0_1710", "f0_1710", 1.710, kFALSE, 0.139, 0, "Resonance", ionCode);
}
ionCode = 335;
if (!db->GetParticle(ionCode)) {
db->AddParticle("f2_1525", "f2_1525", 1.525, kFALSE, 0.073, 0, "Resonance", ionCode);
}

// Xi-/+ (1820)
ionCode = 123314;
if (!db->GetParticle(ionCode)) {
Expand Down
179 changes: 135 additions & 44 deletions Steer/src/O2MCApplication.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -351,6 +351,22 @@ void addSpecialParticles()
// f2(1270) (PDG: width = 185 MeV)
TVirtualMC::GetMC()->DefineParticle(225, "f2_1270", kPTNeutron, 1.275, 0.0, 3.558e-24, "Hadron", 0.185, 4, 1, 1, 0, 0, 1, 0, 0, kTRUE);

// f1(1285) (PDG: width = 24.20 MeV) Spin/Parity might not be correct
TVirtualMC::GetMC()->DefineParticle(20223, "f1_1285", kPTNeutron, 1.28210, 0.0, 1e-24, "Hadron", 0.02420, 3, 1, 0, 0, 0, 0, 0, 1, kTRUE);
// f1(1420) (PDG: width = 54 MeV) Spin/Parity might not be correct
TVirtualMC::GetMC()->DefineParticle(20333, "f1_1420", kPTNeutron, 1.42640, 0.0, 1e-24, "Hadron", 0.05490, 3, 1, 0, 0, 0, 0, 0, 1, kTRUE);

// Glueball hunting family
// Their life times are not known, so we set them to 1e-24
// f0(1370) (PDG: width = 200-500 MeV) Spin/Parity might not be correct
TVirtualMC::GetMC()->DefineParticle(10221, "f0_1370", kPTNeutron, 1.37, 0.0, 1e-24, "Hadron", 0.2, 1, 1, 1, 0, 0, 1, 0, 0, kTRUE);
// f0(1500) (PDG: width = 112 MeV) Spin/Parity might not be correct
TVirtualMC::GetMC()->DefineParticle(9030221, "f0_1500", kPTNeutron, 1.506, 0.0, 1e-24, "Hadron", 0.112, 0, 1, 1, 0, 0, 1, 0, 0, kTRUE);
// f0(1710) (PDG: width = 139 MeV) Spin/Parity might not be correct
TVirtualMC::GetMC()->DefineParticle(10331, "f0_1710", kPTNeutron, 1.71, 0.0, 1e-24, "Hadron", 0.139, 1, 1, 1, 0, 0, 1, 0, 0, kTRUE);
// f2(1525) (PDG: width = 73 MeV) Spin/Parity might not be correct
TVirtualMC::GetMC()->DefineParticle(335, "f2_1525", kPTNeutron, 1.525, 0.0, 1e-24, "Hadron", 0.073, 5, 1, 1, 0, 0, 1, 0, 0, kTRUE);

// Xi_0(1820)
TVirtualMC::GetMC()->DefineParticle(123324, "Xi_0_1820", kPTNeutron, 1.8234, 0.0, 2.742550e-23, "Hadron", 0.024, 3, -1, 0, 1, 1, 0, 0, 1, kTRUE);
TVirtualMC::GetMC()->DefineParticle(-123324, "Xi_0_Bar_1820", kPTNeutron, 1.8234, 0.0, 2.742550e-23, "Hadron", 0.024, 3, -1, 0, 1, -1, 0, 0, -1, kTRUE);
Expand Down Expand Up @@ -1135,78 +1151,153 @@ void addSpecialParticles()

TVirtualMC::GetMC()->SetDecayMode(225, bratio, mode);

// Define the 2-body phase space decay for the resonances: f0(1500), f2(1525), f0(1710
for (Int_t kz = 0; kz < 6; kz++) {
bratio[kz] = 0.;
mode[kz][0] = 0;
mode[kz][1] = 0;
mode[kz][2] = 0;
}
bratio[0] = 100.;
mode[0][0] = 310; // K0s
mode[0][1] = 310; // K0s

TVirtualMC::GetMC()->SetDecayMode(9030221, bratio, mode); // f0(1500)
TVirtualMC::GetMC()->SetDecayMode(335, bratio, mode); // f2(1525)
TVirtualMC::GetMC()->SetDecayMode(10331, bratio, mode); // f0(1710)
TVirtualMC::GetMC()->SetDecayMode(10221, bratio, mode); // f0(1370)

// Define the 3-body phase space decay for the resonances: f1(1285), f1(1420)
for (Int_t kz = 0; kz < 6; kz++) {
bratio[kz] = 0.;
mode[kz][0] = 0;
mode[kz][1] = 0;
mode[kz][2] = 0;
}

bratio2[0] = 50.;
mode[0][0] = 310; // K0s
mode[0][1] = -321; // anti-K
mode[0][2] = 211; // pion+

bratio2[1] = 50.;
mode[1][0] = 310; // K0s
mode[1][1] = 321; // K
mode[1][2] = -211; // pion-

TVirtualMC::GetMC()->SetDecayMode(20223, bratio2, mode); // f1(1285)
TVirtualMC::GetMC()->SetDecayMode(20333, bratio2, mode); // f1(1420)

// Lambda1520/Lambda1520bar

TVirtualMC::GetMC()->DefineParticle(3124, "Lambda1520", kPTNeutron, 1.5195, 0.0, 4.22e-23, "Hadron", 0.0156, 3, -1, 0, 0, 0, 0, 0, 1, kTRUE);
TVirtualMC::GetMC()->DefineParticle(-3124, "Lambda1520bar", kPTNeutron, 1.5195, 0.0, 4.22e-23, "Hadron", 0.0156, 3, -1, 0, 0, 0, 0, 0, -1, kTRUE);
TVirtualMC::GetMC()->DefineParticle(102134, "Lambda1520", kPTNeutron, 1.5195, 0.0, 4.22e-23, "Hadron", 0.0156, 3, -1, 0, 0, 0, 0, 0, 1, kTRUE);
TVirtualMC::GetMC()->DefineParticle(-102134, "Lambda1520bar", kPTNeutron, 1.5195, 0.0, 4.22e-23, "Hadron", 0.0156, 3, -1, 0, 0, 0, 0, 0, -1, kTRUE);

// Lambda1520 decay modes
Int_t lmode[9][3];
Float_t lbratio[9];
for (Int_t kz = 0; kz < 9; kz++) {
lbratio[kz] = 0.;
lmode[kz][0] = 0;
lmode[kz][1] = 0;
lmode[kz][2] = 0;
}

// L(1520) -> p K-
bratio[0] = 0.223547;
mode[0][0] = 2212;
mode[0][1] = -321;
lbratio[0] = 0.229944;
lmode[0][0] = 2212;
lmode[0][1] = -321;

// L(1520) -> n K0
bratio[1] = 0.223547;
mode[1][0] = 2112;
mode[1][1] = -311;
lbratio[1] = 0.229944;
lmode[1][0] = 2112;
lmode[1][1] = -311;

// L(1520) -> Sigma+ pi-
bratio[2] = 0.139096;
mode[2][0] = 3222;
mode[2][1] = -211;
lbratio[2] = 0.143076;
lmode[2][0] = 3222;
lmode[2][1] = -211;

// L(1520) -> Sigma0 pi0
bratio[3] = 0.139096;
mode[3][0] = 3212;
mode[3][1] = 111;
lbratio[3] = 0.143076;
lmode[3][0] = 3212;
lmode[3][1] = 111;

// L(1520) -> Sigma- pi+
bratio[4] = 0.139096;
mode[4][0] = 3112;
mode[4][1] = 211;
lbratio[4] = 0.143076;
lmode[4][0] = 3112;
lmode[4][1] = 211;

// L(1520) -> Sigma*- pi+
lbratio[5] = 0.034066;
lmode[5][0] = 3114;
lmode[5][1] = 211;

// L(1520) -> Sigma*0 pi0
lbratio[6] = 0.034066;
lmode[6][0] = 3214;
lmode[6][1] = 111;

// The other decay modes are neglected
bratio[5] = 0.;
mode[5][0] = 0;
mode[5][1] = 0;
// L(1520) -> Sigma*+ pi-
lbratio[7] = 0.034066;
lmode[7][0] = 3224;
lmode[7][1] = -211;

TVirtualMC::GetMC()->SetDecayMode(3124, bratio, mode);
// L(1520) -> Lambda gamma
lbratio[8] = 0.008687;
lmode[8][0] = 3122;
lmode[8][1] = 22;

TVirtualMC::GetMC()->SetDecayMode(102134, lbratio, lmode);

// Lambda1520bar decay modes

// L(1520)bar -> p- K+
bratio[0] = 0.223547;
mode[0][0] = -2212;
mode[0][1] = 321;
lbratio[0] = 0.229944;
lmode[0][0] = -2212;
lmode[0][1] = 321;

// L(1520)bar -> nbar K0bar
bratio[1] = 0.223547;
mode[1][0] = -2112;
mode[1][1] = 311;
lbratio[1] = 0.229944;
lmode[1][0] = -2112;
lmode[1][1] = 311;

// L(1520)bar -> Sigmabar- pi+
bratio[2] = 0.139096;
mode[2][0] = -3222;
mode[2][1] = 211;
lbratio[2] = 0.143076;
lmode[2][0] = -3222;
lmode[2][1] = 211;

// L(1520)bar -> Sigma0bar pi0
bratio[3] = 0.139096;
mode[3][0] = -3212;
mode[3][1] = 111;
lbratio[3] = 0.143076;
lmode[3][0] = -3212;
lmode[3][1] = 111;

// L(1520)bar -> Sigmabar+ pi-
bratio[4] = 0.139096;
mode[4][0] = -3112;
mode[4][1] = -211;

// The other decay modes are neglected
bratio[5] = 0.;
mode[5][0] = 0;
mode[5][1] = 0;

TVirtualMC::GetMC()->SetDecayMode(-3124, bratio, mode);
lbratio[4] = 0.143076;
lmode[4][0] = -3112;
lmode[4][1] = -211;

// L(1520)bar -> anti-Sigma*- pi-
lbratio[5] = 0.034066;
lmode[5][0] = -3114;
lmode[5][1] = -211;

// L(1520)bar -> anti-Sigma*0 pi0
lbratio[6] = 0.034066;
lmode[6][0] = -3214;
lmode[6][1] = 111;

// L(1520)bar -> anti-Sigma*+ pi+
lbratio[7] = 0.034066;
lmode[7][0] = -3224;
lmode[7][1] = 211;

// L(1520)bar -> Anti-Lambda gamma
lbratio[8] = 0.008687;
lmode[8][0] = -3122;
lmode[8][1] = 22;

TVirtualMC::GetMC()->SetDecayMode(-102134, lbratio, lmode);

// --------------------------------------------------------------------

Expand Down