Results are reported from a search for the production of three-jet resonances in pp collisions at a center-of-mass energy root s = 7 TeV. The study uses the data sample collected by the CMS experiment at the LHC in 2011, corresponding to an integrated luminosity of 5.0 fb(-1). Events with high jet multiplicity and a large scalar sum of jet transverse momenta are analyzed for the presence of resonances in the three-jet invariant mass spectrum. No evidence for a narrow resonance is found in the data, and limits are set on the cross section for gluino pair production in an R-parity-violating supersymmetry model, for gluino masses greater than 280 GeV. Assuming a branching fraction for gluino decay into three jets of 100%, gluino masses below 460 GeV are excluded at 95% confidence level. These results significantly extend the range of previous limits. (C) 2012 CERN. Published by Elsevier By. All rights reserved.
|Autori interni:||MAGGI, Giorgio Pietro|
PUGLIESE, Gabriella Maria Incoronata
|Titolo:||Search for three-jet resonances in pp collisions at root s=7 TeV|
|Rivista:||PHYSICS LETTERS. SECTION B|
|Data di pubblicazione:||2012|
|Digital Object Identifier (DOI):||10.1016/j.physletb.2012.10.048|
|Appare nelle tipologie:||1.1 Articolo in rivista|