Published January 1, 2004 | Version v1
Journal article Metadata-only

Rapidity dependent strangeness measurements in BRAHMS experiment at RHIC

Creators

  • 1. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
  • 2. Niels Bohr Institute, Blegdamsvej 17, University of Copenhagen, Copenhagen 2100 (Denmark)
  • 3. University of Bucharest (Romania)
  • 4. New York University, New York 10003 (United States)
  • 5. Institute of Nuclear Physics, Cracow (Poland)
  • 6. University of Oslo, Department of Physics, Oslo (Norway)
  • 7. Texas A and M University, College Station, Texas, 17843 (United States)
  • 8. University of Kansas, Lawerence, Kansas 66049 (United States)
  • 9. Institut de Recherches Subatomiques and Universite Louis Pasteur, Strasbourg (France)
  • 10. University of Bergen, Department of Physics, Bergen (Norway)
  • 11. Smoluchkowski Inst. of Physics, Jagiellonian University, Cracow (Poland)
  • 12. Johns Hopkins University, Baltimore 21218 (United States)

Description

Particle production of charged kaons in central Au+Au collisions at √sqrtsNN= 200 GeV has been studied as a function of rapidity by the BRAHMS collaboration at RHIC. The kaon spectral shapes are described well by an exponential in transverse mass for the rapidity range of 0 ≤ yK ≤ 3.3 with smoothly decreasing inverse slopes as the rapidity increases. For the charged kaon to pion ratios, while there is no significant rapidity dependence for the K+/π+ ratio, the K-/π- ratio shows a significant decrease from y ≅ 1 towards higher rapidities. The systematics of K-/K+ and p-bar/p ratios in the measured rapidity range demonstrates a strongly correlated behaviour which can be described by thermal-statistical models

Availability note (English)

Available online at http://stacks.iop.org/0954-3899/30/S85/g4_1_007.pdf or at the Web site for the Journal of Physics. G, Nuclear and Particle Physics (ISSN 1361-6471) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0954-3899/30/S85/g4_1_007.pdf; http://www.iop.org/;
DOI
10.1088/0954-3899/30/1/007;
PII
S0954-3899(04)65074-2;

Publishing Information

Journal Title
Journal of Physics. G, Nuclear and Particle Physics
Journal Volume
30
Journal Issue
1
Journal Page Range
p. S85-S92
ISSN
0954-3899
CODEN
JPGPED

Conference

Title
7. international conference on strangeness in quark matter
Acronym
SQM 2003
Dates
12-17 Mar 2003
Place
Atlantic Beach, NC (United States)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35028464
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BROOKHAVEN RHIC; GOLD 197 REACTIONS; GOLD 197 TARGET; KAONS MINUS; KAONS PLUS; PARTICLE PRODUCTION; PARTICLE RAPIDITY; PIONS MINUS; PIONS PLUS; THERMODYNAMIC MODEL
Descriptors DEC
ACCELERATORS; BOSONS; ELEMENTARY PARTICLES; HADRONS; HEAVY ION ACCELERATORS; HEAVY ION REACTIONS; KAONS; MATHEMATICAL MODELS; MESONS; NUCLEAR REACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR MESONS; STATISTICAL MODELS; STORAGE RINGS; STRANGE MESONS; STRANGE PARTICLES; TARGETS