INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Search for Production of Resonant States in the Photon-Jet Mass Distribution using pp Collisions at √s = 7 TeV collected by the ATLAS Detector
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
PHYSICAL REVIEW LETTERS
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2012 vol. 231 p. 1 - 23
ISSN:
0031-9007
Resumen:
This Letter describes a model-independent search for production of new
resonant states in photon-jet events in 2.11 fb^-1 of proton-proton
collisions at sqrt(s) = 7 TeV. We compare the photon-jet mass
distribution to a data-driven background estimate and find consistency
with the background hypothesis. Given the lack of evidence for a signal,
we set 95% CL limits on generic Gaussian-shape signals and on a
benchmark excited-quark (q*) model, excluding 2 TeV Gaussian resonances
with cross section times branching ratio times acceptance times
efficiency near 5 fb and excluding q* masses below 2.46 TeV,
respectively.