Search for third-generation leptoquarks and scalar bottom quarks in pp collisions at sqrt(s) = 7 TeV - IN2P3 - Institut national de physique nucléaire et de physique des particules
Article Dans Une Revue Journal of High Energy Physics Année : 2012

Search for third-generation leptoquarks and scalar bottom quarks in pp collisions at sqrt(s) = 7 TeV

S. Chatrchyan
  • Fonction : Auteur
Pierre Busson
R. Granier de Cassagnac
C. Mironov
P. Paganini
J.-L. Agram
C. Collard
E. Conte
P. van Hove
D. Contardo
M. Gouzevitch
M. Lethuillier
V. Sordini
P. Verdier

Résumé

Results are presented from a search for third-generation leptoquarks and scalar bottom quarks in a sample of proton-proton collisions at sqrt(s) = 7 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.7 inverse femtobarns. A scenario where the new particles are pair produced and each decays to a b quark plus a tau neutrino or neutralino is considered. The number of observed events is found to be in agreement with the standard model prediction. Upper limits are set at 95% confidence level on the production cross sections. Leptoquarks with masses below about 450 GeV are excluded. Upper limits in the mass plane of the scalar quark and neutralino are set such that scalar bottom quark masses up to 410 GeV are excluded for neutralino masses of 50 GeV.

Dates et versions

in2p3-00744369 , version 1 (23-10-2012)

Identifiants

Citer

S. Chatrchyan, M. Besançon, S. Choudhury, M. Dejardin, D. Denegri, et al.. Search for third-generation leptoquarks and scalar bottom quarks in pp collisions at sqrt(s) = 7 TeV. Journal of High Energy Physics, 2012, 12, pp.055. ⟨10.1007/JHEP12(2012)055⟩. ⟨in2p3-00744369⟩
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