INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
A Search for Prompt Lepton-Jets in pp Collisions at √s = 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. 299 - 317
ISSN:
0370-2693
Resumen:
We present a search for a light (mass <2GeV) boson predicted by
Hidden Valley supersymmetric models that decays into a final state
consisting of collimated muons or electrons, denoted ''lepton-jets''.
The analysis uses 5fb^-^1 of s=7TeV proton-proton collision data
recorded by the ATLAS detector at the Large Hadron Collider to search
for the following signatures: single lepton-jets with at least four
muons pairs of lepton-jets, each with two or more muons and pairs of
lepton-jets with two or more electrons. This study finds no
statistically significant deviation from the Standard Model prediction
and places 95% confidence-level exclusion limits on the production cross
section times branching ratio of light bosons for several parameter
sets of a Hidden Valley model.We present a search for a light (mass
< 2 GeV) boson predicted by Hidden Valley supersymmetric models that
decays into a final state consisting of collimated muons or electrons,
denoted "lepton-jets". The analysis uses 5fb-1 of sqrt(s) = 7 TeV
proton--proton collision data recorded by the ATLAS detector at the
Large Hadron Collider to search for the following signatures: single
lepton-jets with at least four muons; pairs of lepton-jets, each with
two or more muons; and pairs of lepton-jets with two or more electrons.
This study finds no statistically significant deviation from the
Standard Model prediction and places 95% confidence-level exclusion
limits on the production cross section times branching ratio of light
bosons for several parameter sets of a Hidden Valley model.