Published February 24, 2006 | Version v1
Journal article Metadata-only

In-Medium Effects on Phase Space Distributions of Antikaons Measured in Proton-Nucleus Collisions

Creators

  • 1. Forschungszentrum Rossendorf, D-01314 Dresden (Germany)
  • 2. Phillips Universitaet, D-35037 Marburg (Germany)
  • 3. Jagiellonian University, PL-30059 Krakow (Poland)
  • 4. Technische Universitaet Darmstadt, D-64289 Darmstadt (Germany)
  • 5. Technische Universitaet Dresden, D-01062 Dresden (Germany)
  • 6. Gesellschaft fuer Schwerionenforschung, D-64220 Darmstadt (Germany)
  • 7. Johann Wolfgang Goethe-Universitaet, D-60325 Frankfurt (Germany)

Description

Differential production cross sections of K± mesons have been measured in p+C and p+Au collisions at 1.6, 2.5, and 3.5 GeV proton beam energy. At beam energies close to the production threshold, the K- multiplicity is strongly enhanced with respect to proton-proton collisions. According to microscopic transport calculations, this enhancement is caused by two effects: the strangeness exchange reaction NY→K-NN and an attractive in-medium K-N potential at saturation density

Additional details

Identifiers

DOI
10.1103/PhysRevLett.96.072301;
arXiv
arXiv:nucl-ex/0512028v2;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
96
Journal Issue
7
Journal Page Range
p. 072301-072301.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37082943
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ANTIKAONS; COLLISIONS; CROSS SECTIONS; DISTRIBUTION; GEV RANGE 01-10; KAONS MINUS; KAONS PLUS; MULTIPLICITY; NUCLEI; PHASE SPACE; PROTON BEAMS; PROTON DENSITY; PROTON-PROTON INTERACTIONS; STRANGENESS-EXCHANGE REACTIONS
Descriptors DEC
ANTIMATTER; ANTIPARTICLES; BARYON-BARYON INTERACTIONS; BEAMS; BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; KAONS; MATHEMATICAL SPACE; MATTER; MESONS; NUCLEAR REACTIONS; NUCLEON BEAMS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE BEAMS; PARTICLE INTERACTIONS; PROTON-NUCLEON INTERACTIONS; PSEUDOSCALAR MESONS; SPACE; STRANGE MESONS; STRANGE PARTICLES

Optional Information

Notes
(c) 2006 The American Physical Society
Collaborations
KaoS Collaboration