Search for new physics in events with same-sign dileptons and b-tagged jets 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, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: Konu: 8
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1007/jhep08(2012)110
  • Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS

Özet

A search for new physics is performed using isolated same-sign dileptons with at least two b-quark jets in the final state. Results are based on a 4.98 fb(-1) sample of proton-proton collisions at a centre-of-mass energy of 7TeV collected by the CMS detector. No excess above the standard model background is observed. Upper limits at 95% confidence level are set on the number of events from non-standard-model sources. These limits are used to set constraints on a number of new physics models. Information on acceptance and efficiencies are also provided so that the results can be used to confront additional models in an approximate way.