INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Search for supersymmetry in events with photons, bottom quarks, and missing transverse momentum in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS detector
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
PHYSICS LETTERS B
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2013 vol. 719 p. 1 - 23
ISSN:
0370-2693
Resumen:
A search has been performed for the experimental
signature of an isolated photon with high transverse momentum, at least
one jet identified as originating from a bottom quark, and high missing
transverse momentum. Such a final state may originate from
supersymmetric models with gauge-mediated supersymmetry breaking in
events in which one of a pair of higgsino-like neutralinos decays into a
photon and a gravitino while the other decays into a Higgs boson and a
gravitino. The search is performed using the full dataset of 7 TeV
proton-proton collisions recorded with the ATLAS detector at the LHC in
2011, corresponding to an integrated luminosity of 4.7 fb^-^1. A total
of 7 candidate events are observed while 7.5+/-2.2 events are expected
from the Standard Model background. The results of the search are
interpreted in the context of general gauge mediation to exclude certain
regions of a benchmark plane for higgsino-like neutralino production.A
search has been performed for the experimental signature of an isolated
photon with high transverse momentum, at least one jet identified as
originating from a bottom quark, and high missing transverse momentum.
Such a final state may originate from supersymmetric models with
gauge-mediated supersymmetry breaking in events in which one of a pair
of higgsino-like neutralinos decays into a photon and a gravitino while
the other decays into a Higgs boson and a gravitino. The search is
performed using the full dataset of 7 TeV proton-proton collisions
recorded with the ATLAS detector at the LHC in 2011, corresponding to an
integrated luminosity of 4.7 fb-1. A total of 7 candidate events are
observed while 7.5 pm 2.2 events are expected from the Standard Model
background. The results of the search are interpreted in the context of
general gauge mediation to exclude certain regions of a benchmark plane
for higgsino-like neutralino production.