INVESTIGADORES
OTERO Y GARZON Gustavo Javier
artículos
Título:
Measurement of inclusive jet and dijet cross sections in proton-proton collisions at 7 TeV centre-of-mass energy with the ATLAS detector
Autor/es:
G. OTERO Y GARZON, R. PIEGAIA, ET. AL., THE ATLAS COLLABORATION
Revista:
EUROPEAN PHYSICAL JOURNAL C - PARTICLES AND FIELDS
Editorial:
SPRINGER
Referencias:
Año: 2010 p. 1512 - 1519
ISSN:
1434-6044
Resumen:
Jet cross sections have been measured for the first time in
proton-proton collisions at a centre-of-mass energy of 7 TeV using the
ATLAS detector. The measurement uses an integrated luminosity of 17
nb-1 recorded at the Large Hadron Collider. The anti-kt algorithm is
used to identify jets, with two jet resolution parameters, R = 0.4 and
0.6. The dominant uncertainty comes from the jet energy scale, which is
determined to within 7% for central jets above 60 GeV transverse
momentum. Inclusive single-jet differential cross sections are
presented as functions of jet transverse momentum and rapidity. Dijet
cross sections are presented as functions of dijet mass and the angular
variable χ
\chi.
The results are compared to expectations based on next-to-leading-order
QCD, which agree with the data, providing a validation of the theory in
a new kinematic regime.