Published August 2013 | Version v1
Journal article Metadata-only

Parton energy loss in cold nuclei

Creators

  • 1. Institute of Particle Physics, Central China Normal University, Wuhan 430079 (China)
  • 2. Department of Physics, Guangxi Normal University, Guilin 541004 (China)
  • 3. Nuclear Science Division, MS 70R0319, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)

Description

Within the generalized high-twist factorization formalism, we express the contribution from multiple parton scattering and induced gluon radiation to the DY dilepton spectra in terms of nuclear modified effective beam quark distribution function. We show that beam quark energy loss is characterized by jet transport parameter q-hat, which is related to the local gluon density of the medium. Using the value of q-hat determined from the deeply inelastic scattering (DIS) data, we evaluate the nuclear modification factor in the Drell-Yan process in p+A collisions. Effects of parton energy loss in the DY spectra are found negligible in the Fermilab experimental data at Elab=800GeV relative to parton shadowing while the predicted suppression of the DY spectra are significant at Elab=120GeV

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nuclphysa.2012.12.107

Additional details

Identifiers

DOI
10.1016/j.nuclphysa.2012.12.107;
PII
S0375-9474(12)00430-7;

Publishing Information

Journal Title
Nuclear Physics. A
Journal Volume
910-911
Journal Page Range
p. 442-445
ISSN
0375-9474
CODEN
NUPABL

Conference

Title
5. international conference on hard and electromagnetic probes of high-energy nuclear collisions
Acronym
Hard Probes 2012
Dates
27 May - 1 Jun 2012
Place
Cagliari (Italy)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45048746
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COLLIDING BEAMS; DEEP INELASTIC SCATTERING; DISTRIBUTION FUNCTIONS; DRELL MODEL; ENERGY LOSSES; FACTORIZATION; GLUONS; HEAVY ION REACTIONS; JET MODEL; MULTIPLE SCATTERING; PROTON REACTIONS; QUANTUM CHROMODYNAMICS; QUARKS
Descriptors DEC
BARYON REACTIONS; BEAMS; BOSONS; CHARGED-PARTICLE REACTIONS; FERMIONS; FIELD THEORIES; FUNCTIONS; HADRON REACTIONS; INELASTIC SCATTERING; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LOSSES; MATHEMATICAL MODELS; NUCLEAR REACTIONS; NUCLEON REACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; QUANTUM FIELD THEORY; SCATTERING

Optional Information

Copyright
Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.