INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Figures, Inspire, arXiv
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
PHYSICAL REVIEW D
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2011 vol. 231 p. 1 - 23
ISSN:
1550-7998
Resumen:
Jets are identified and their properties studied in
center-of-mass energy sqrt(s) = 7 TeV proton-proton collisions at the
Large Hadron Collider using charged particles measured by the ATLAS
inner detector. Events are selected using a minimum bias trigger,
allowing jets at very low transverse momentum to be observed and their
characteristics in the transition to high-momentum fully perturbative
jets to be studied. Jets are reconstructed using the anti-kt algorithm
applied to charged particles with two radius parameter choices, 0.4 and
0.6. An inclusive charged jet transverse momentum cross section
measurement from 4 GeV to 100 GeV is shown for four ranges in rapidity
extending to 1.9 and corrected to charged particle-level truth jets. The
transverse momenta and longitudinal momentum fractions of charged
particles within jets are measured, along with the charged particle
multiplicity and the particle density as a function of radial distance
from the jet axis. Comparison of the data with the theoretical models
implemented in existing tunings of Monte Carlo event generators
indicates reasonable overall agreement between data and Monte Carlo.
These comparisons are sensitive to Monte Carlo parton showering,
hadronization, and soft physics models.