INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Search for Diphoton Events with Large Missing Transverse Energy with 36 pb−1 of 7 TeV Proton-Proton Collision Data with the ATLAS Detector
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
EUROPEAN PHYSICAL JOURNAL C - PARTICLES AND FIELDS
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2011 p. 1 - 23
ISSN:
1434-6044
Resumen:
Making use of 36 pb^-1 of proton-proton collision data
at sqrt{s} = 7 TeV, the ATLAS Collaboration has performed a search for
diphoton events with large missing transverse energy. Observing no
excess of events above the Standard Model prediction, a 95% Confidence
Level (CL) upper limit is set on the cross section for new physics of
sigma < 0.38 - 0.65 pb in the context of a generalised model of gauge
mediated supersymmetry breaking (GGM) with a bino-like lightest
neutralino, and of sigma < 0.18 - 0.23 pb in the context of a
specific model with one universal extra dimension (UED). A 95 % CL lower
limit of 560 GeV, for bino masses above 50 GeV, is set on the GGM
gluino mass, while a lower limit of 1/R > 961 GeV is set on the UED
compactification radius R. These limits provide the most stringent tests
of these models to date.