INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Measurement of dijet production with a veto on additional central jet activity in pp collisions at √s =7 TeV using the ATLAS detector
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
JOURNAL OF HIGH ENERGY PHYSICS
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2011 p. 1 - 23
ISSN:
1126-6708
Resumen:
A measurement of jet activity in the rapidity interval bounded by a
dijet system is presented. Events are vetoed if a jet with transverse
momentum greater than 20 GeV is found between the two boundary jets. The
fraction of dijet events that survive the jet veto is presented for
boundary jets that are separated by up to six units of rapidity and with
mean transverse momentum 50 < pT(avg) < 500 GeV. The mean
multiplicity of jets above the veto scale in the rapidity interval
bounded by the dijet system is also presented as an alternative method
for quantifying perturbative QCD emission. The data are compared to a
next-to-leading order plus parton shower prediction from the POWHEG-BOX,
an all-order resummation using the HEJ calculation and the PYTHIA,
HERWIG++ and ALPGEN event generators. The measurement was performed
using pp collisions at sqrt(s)=7 TeV using data recorded by the ATLAS
detector in 2010.