[PWGLF] reduce gap size (#2278)

Author: alcaliva

MC/config/PWGLF/ini/GeneratorDoubleLambdaTriggered.ini

@@ -1,6 +1,6 @@
 [GeneratorExternal]
 fileName=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGLF/pythia8/generator_pythia8_doubleLambdas.C
-funcName=generateDoubleLambda(4, 0.2, 10, 0.8)
+funcName=generateDoubleLambda(1, 0.2, 10, 0.8)
 
 [GeneratorPythia8] 
 config=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGLF/pythia8/generator/pythia8_inel_ropes_136tev.cfg