INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Measurement of the inclusive isolated prompt photon cross-section in pp collisions at √s = 7 TeV using 35 pb-1 of ATLAS data
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
PHYSICS LETTERS B
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2011 vol. 231 p. 1 - 23
ISSN:
0370-2693
Resumen:
A measurement of the differential cross-section for the
inclusive production of isolated prompt photons in pp collisions at a
center-of-mass energy sqrt(s) = 7 TeV is presented. The measurement
covers the pseudorapidity ranges |eta|<1.37 and
1.52<=|eta|<2.37 in the transverse energy range
45<=E_T<400GeV. The results are based on an integrated luminosity
of 35 pb-1, collected with the ATLAS detector at the LHC. The yields of
the signal photons are measured using a data-driven technique, based on
the observed distribution of the hadronic energy in a narrow cone around
the photon candidate and the photon selection criteria. The results are
compared with next-to-leading order perturbative QCD calculations and
found to be in good agreement over four orders of magnitude in
cross-section.
