Measurement of energy flow at large pseudorapidities in $pp$ collisions at $\sqrt{s} = 0.9$ and 7 TeV - INSPIRE

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Measurement of energy flow at large pseudorapidities in $pp$ collisions at $\sqrt{s} = 0.9$ and 7 TeV

CMS

Collaboration

Oct, 2011

37 pages

Published in:

JHEP 11 (2011) 148,
JHEP 02 (2012) 055 (erratum)

Published: Nov, 2011

e-Print:

1110.0211 [hep-ex]

DOI:

Report number:

CERN-PH-EP-2011-086,
CMS-FWD-10-011

Experiments:

CERN-LHC-CMS

View in:

reference search77 citations

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Abstract: (arXiv)

The energy flow, dE/d(eta), is studied at large pseudorapidities in proton-proton collisions at the LHC, for centre-of-mass energies of 0.9 and 7 TeV. The measurements are made in the pseudorapidity range 3.15 < |eta| < 4.9, for both minimum-bias events and events with at least two high-momentum jets, using the CMS detector. The data are compared to various pp Monte Carlo event generators whose theoretical models and input parameter values are sensitive to the energy-flow measurements. Inclusion of multiple-parton interactions in the Monte Carlo event generators is found to improve the description of the energy-flow measurements.

programming: Monte Carlo
energy flow
rapidity dependence
CERN LHC Coll
CMS
p p: interaction
jet: multiple production
parton: multiple scattering
dijet
charged particle: multiplicity

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