Publikationsdatum:
2012-12-01
Beschreibung:
A search is conducted for hadronic three-body decays of a new massive coloured particle in $ sqrt{s}=7;mathrm{TeV} $ pp collisions at the LHC using an integrated luminosity of 4.6 fb−1 collected by the ATLAS detector. Supersymmetric gluino pair production in the context of a model with R-parity violation is used as a benchmark scenario. The analysis is divided into two search channels, each optimised separately for their sensitivity to high-mass and low-mass gluino production. The first search channel uses a stringent selection on the transverse momentum of the six leading jets and is performed as a counting experiment. The second search channel focuses on low-mass gluinos produced with a large boost. Large-radius jets are selected and the invariant mass of each of the two leading jets is used as a discriminant between the signal and the background. The results are found to be consistent with Standard Model expectations and limits are set on the allowed gluino mass.
Print ISSN:
1126-6708
Digitale ISSN:
1029-8479
Thema:
Physik
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