psi(2S) Measument with CMS 10 TeV Data Purpose: to measure psi(2S) cross section and pt distribution with early 10 TeV CMS data Signal: pp→g psi(2S) →g J/psi pi+pi- Generator: Pythia to produce pp→g psi(2S), here psi(2S)→J/psi pi+pi-, J/psi pi0pi0, J/psi eta, J/psi pi0 , chi0,1,2 gamma, J/psi→mu+mu-, pp→cc~g(or q), cc~ →psi(2S)g CMSSW_2_1_9

psi(2S) Measument with CMS 10 TeV Data Cross Section: 6.329E-03mb Produced Events: 50000 Preselection: dimu |eta|<2.5 and pt>2.5, 1000 events remains

psi(2S) Measument with CMS 10 TeV Data Muon is global Muon

psi(2S) Measument with CMS 10 TeV Data J/psi is consist of 2 muons

psi(2S) Measument with CMS 10 TeV Data Psi(2S) is consist of J/psi pi+pi- Cut 1: number of dimuons >= 1 to get fig9, fig 10 is a part of fig 9 Cut 2: △R(Psi(2S),pi)<1.5 to get fig11, Cut 3: 2pi mass<0.59 to get fig12,

psi(2S) Measument with CMS 10 TeV Data Psi(2S) is consist of J/psi pi+pi-(con’t) Cut 4: chisquid squared < 15 to get fig14 fig 10