Published March 2011 | Version v1
Journal article Metadata-only

Gluon saturation and net-proton spectra in relativistic nucleus-nucleus collisions

Creators

  • 1. Physics Department, Academy of Armored Forces Engineering of PLA, Beijing (China)
  • 2. Physics Graduate School, Shijiazhuang Railway Institute, Shijiazhuang (China)
  • 3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing (China)

Description

By means of the AKK08 fragmentation function, the net-proton transverse momentum (pT) spectra in A + A collisions are studied with two phenomenological models based on the Color Glass Condensate formalism. After a χ2 analysis of the experimental data from BRAHMS, the normalization constant C is extracted at RHIC energies of √sNN =62.4 and 200 GeV, and the theoretical results of the net-proton pT spectra at selected rapidities are also given. It is shown that the theoretical results are in good agreement with the experimental data. Finally, assuming the constant C should have an exponent dependence of √sNN, we also predict the theoretical results of net-proton pT spectra at LHC energies of √sNN = 2.76, 3.94, and 5.52 TeV. (authors)

Additional details

Publishing Information

Journal Title
Chinese Physics. C, High Energy Physics and Nuclear Physics
Journal Volume
35
Journal Issue
3
Journal Page Range
p. 255-258
ISSN
1674-1137

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
44060925
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BROOKHAVEN RHIC; CERN LHC; COLOR MODEL; CONDENSATES; EXPERIMENTAL DATA; FRAGMENTATION; FUNCTIONS; GEV RANGE 100-1000; GEV RANGE 10-100; GLASS; GLUONS; HEAVY ION REACTIONS; NUCLEAR REACTIONS; NUCLEI; PARTICLE RAPIDITY; PROTON SPECTRA; PROTONS; RELATIVISTIC RANGE; TEV RANGE 01-10; TRANSVERSE MOMENTUM
Descriptors DEC
ACCELERATORS; BARYONS; BOSONS; COMPOSITE MODELS; CYCLIC ACCELERATORS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; HEAVY ION ACCELERATORS; INFORMATION; LINEAR MOMENTUM; MATHEMATICAL MODELS; NUCLEAR REACTIONS; NUCLEONS; NUMERICAL DATA; PARTICLE MODELS; PARTICLE PROPERTIES; QUARK MODEL; SPECTRA; STORAGE RINGS; SYNCHROTRONS; TEV RANGE

Optional Information

Notes
4 figs., 26 refs.