Measurement of the Lambda(0)(b) lifetime in pp collisions at root s=7 TeV


Chatrchyan S., Khachatryan V., Sirunyan A. M. , Tumasyan A., Adam W., Bergauer T., ...Daha Fazla

JOURNAL OF HIGH ENERGY PHYSICS, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: Konu: 7
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/jhep07(2013)163
  • Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS

Özet

A measurement of the Lambda(0)(b) lifetime using the decay Lambda(0)(b) -> J/psi Lambda in protonproton collisions at root s = 7TeV is presented. The data set, corresponding to an integrated luminosity of about 5 fb(-1), was recorded with the CMS experiment at the Large Hadron Collider using triggers that selected dimuon events in the J/psi mass region. The Lambda(0)(b) lifetime is measured to be 1.503 +/- 0.052 (stat.) +/- 0.031 (syst.) ps