INVESTIGADORES
OTERO Y GARZON Gustavo Javier
artículos
Título:
Study of Jet Shapes in Inclusive Jet Production in pp Collisions at sqrt(s) = 7 TeV using the ATLAS Detector.
Autor/es:
G. OTERO Y GARZON, R. PIEGAIA, ET. AL., THE ATLAS COLLABORATION
Revista:
PHYSICAL REVIEW D - PARTICLE AND FILDS
Editorial:
APS
Referencias:
Año: 2010 p. 5200301 - 5200329
ISSN:
0556-2821
Resumen:
Jet shapes have been measured in inclusive jet production in
proton-proton collisions at sqrt(s) = 7 TeV using 3 pb^{-1} of data
recorded by the ATLAS experiment at the LHC. Jets are reconstructed
using the anti-kt algorithm with transverse momentum 30 GeV < pT
< 600 GeV and rapidity in the region |y| < 2.8. The data are
corrected for detector effects and compared to several leading-order
QCD matrix elements plus parton shower Monte Carlo predictions,
including different sets of parameters tuned to model fragmentation
processes and underlying event contributions in the final state. The
measured jets become narrower with increasing jet transverse momentum
and the jet shapes present a moderate jet rapidity dependence. Within
QCD, the data test a variety of perturbative and non-perturbative
effects. In particular, the data show sensitivity to the details of the
parton shower, fragmentation, and underlying event models in the Monte
Carlo generators. For an appropriate choice of the parameters used in
these models, the data are well described.