Hoi Daniele, no, just the muons: ptarmigan>diff ~daniele/work/systexcl/VubAnalysis/../RecoilAnalysis/PidTables-200x.032403.txt ~daniele/work/systexcl/VubAnalysis/../RecoilAnalysis/PidTables-200x.011403.txt 17,20c17,20 < ../RecoilAnalysis/PidTables/200x/muons-/mu.eemumu.Micro.Tight 11 muMicroTight 13 < ../RecoilAnalysis/PidTables/200x/muons+/mu.eemumu.Micro.Tight -11 muMicroTight 13 < ../RecoilAnalysis/PidTables/200x/muons-/mu.eemumu.Micro.Tight 13 muMicroTight 13 < ../RecoilAnalysis/PidTables/200x/muons+/mu.eemumu.Micro.Tight -13 muMicroTight 13 --- > ../RecoilAnalysis/PidTables/200x/muons-/mu.mumug2.Micro.Tight 11 muMicroTight 13 > ../RecoilAnalysis/PidTables/200x/muons+/mu.mumug2.Micro.Tight -11 muMicroTight 13 > ../RecoilAnalysis/PidTables/200x/muons-/mu.mumug2.Micro.Tight 13 muMicroTight 13 > ../RecoilAnalysis/PidTables/200x/muons+/mu.mumug2.Micro.Tight -13 muMicroTight 13 The electrons are unchanged, as they are so completely stable anyway. Cheers, --U.