jialu-B2Lzppi-masswindowcut,tightcut
Apply a tight cut on acceptance and a mass-window cut on M(Lz p) less than 3 GeV/c. -by Jialu (jialu.wang@cern.ch)
Apply a tight cut on acceptance and a mass-window cut on M(Lz p) less than 3 GeV/c. -by Jialu (jialu.wang@cern.ch)