On Tue, 9 Apr 2002, Urs Langenegger wrote: > > Hoi Alessio, > > do you understand the theta values? > > Cheers, > --U. > Hi, using the Urs hint (now I'm removing events where nCryGam ==1) the costheta distribution is much more reasonable: http://www.slac.stanford.edu/~asarti/recoil/TGam_all.eps Thanks to Urs helping me on that issue!!!! Alessio