From 715e524a6f9f198ab0a421272390c41eb1198aed Mon Sep 17 00:00:00 2001
From: Francesco Mazzaschi <fmazzasc@alipap1.cern.ch>
Date: Wed, 23 Jul 2025 09:48:33 +0200
Subject: [PATCH] Add sigmapi resonance config

---
 .../ini/GeneratorLFSigmaPiResonances.ini      |  7 +++++
 .../generator/sigmapi_resonances_gun.json     | 29 +++++++++++++++++++
 2 files changed, 36 insertions(+)
 create mode 100644 MC/config/PWGLF/ini/GeneratorLFSigmaPiResonances.ini
 create mode 100644 MC/config/PWGLF/pythia8/generator/sigmapi_resonances_gun.json

diff --git a/MC/config/PWGLF/ini/GeneratorLFSigmaPiResonances.ini b/MC/config/PWGLF/ini/GeneratorLFSigmaPiResonances.ini
new file mode 100644
index 000000000..e58e173c7
--- /dev/null
+++ b/MC/config/PWGLF/ini/GeneratorLFSigmaPiResonances.ini
@@ -0,0 +1,7 @@
+[GeneratorExternal]
+fileName=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGLF/pythia8/generator_pythia8_LF.C
+funcName=generateLF("${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGLF/pythia8/generator/sigmapi_resonances_gun.json", true, 4)
+
+[DecayerPythia8] # after for transport code!
+config[0]=${O2DPG_MC_CONFIG_ROOT}/MC/config/common/pythia8/decayer/base.cfg
+config[1]=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGLF/pythia8/generator/resonances.cfg
\ No newline at end of file
diff --git a/MC/config/PWGLF/pythia8/generator/sigmapi_resonances_gun.json b/MC/config/PWGLF/pythia8/generator/sigmapi_resonances_gun.json
new file mode 100644
index 000000000..6d7e4b2b3
--- /dev/null
+++ b/MC/config/PWGLF/pythia8/generator/sigmapi_resonances_gun.json
@@ -0,0 +1,29 @@
+{
+    "lambda(1405)" : {
+        "pdg": 102132,
+        "n": 2,
+        "ptMin": 0.0,
+        "ptMax": 10,
+        "etaMin": -1.2,
+        "etaMax": 1.2,
+        "genDecayed": true
+    },
+    "lambda(1520)" : {
+        "pdg": 102134,
+        "n": 2,
+        "ptMin": 0.0,
+        "ptMax": 10,
+        "etaMin": -1.2,
+        "etaMax": 1.2,
+        "genDecayed": true
+    },
+    "sigma(1385)" : {
+        "pdg": 3214,
+        "n": 2,
+        "ptMin": 0.0,
+        "ptMax": 10,
+        "etaMin": -1.2,
+        "etaMax": 1.2,
+        "genDecayed": true
+    }
+}