INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Search for pair production of massive particles decaying into three quarks with the ATLAS detector in √s =7 TeV pp collisions at the LHC
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
JOURNAL OF HIGH ENERGY PHYSICS
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2012 vol. 2012 p. 1 - 12
ISSN:
1126-6708
Resumen:
A search is conducted for hadronic three-body decays of a new massive
coloured particle in sqrt(s) = 7 TeV pp collisions at the LHC using an
integrated luminosity of 4.6/fb 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.