Published May 20, 2002 | Version v1
Journal article Metadata-only

Overpopulation of Ω in pp collisions: A way to distinguish statistical hadronization from string dynamics

Creators

  • 1. SUBATECH, Laboratoire de Physique Subatomique et des Technologies Associees, University of Nantes-IN2P3/CNRS-Ecole des Mines de Nantes, 4 rue Alfred Kastler, F-44072 Nantes Cedex 03 (France)
  • 2. Department of Theoretical Physics, University of Oulu, SF-90570 Oulu (Finland)
  • 3. RIKEN-BNL Research Center, Brookhaven National Laboratory, Upton, New York (United States)
  • 4. Department of Physics, Duke University, Durham, North Carolina (United States)
  • 5. Universita di Firenze and INFN Sezione di Firenze, Via G. Sansone 1, I-50019, Sesto F.no, Florence (Italy)
  • 6. Institute for Theoretical Physics, University of Wroclaw, PL-50204 Wroclaw (Poland)
  • 7. Theoretical Physics Division, CERN, CH-1211 Geneva 23 (Switzerland)

Description

The Ω/Ω ratio originating from string decays is predicted to be larger than unity in proton-proton interactions at SPS energies (Elab=160 GeV ). The antiomega dominance increases with decreasing beam energy. This surprising behavior is caused by the combinatorics of quark-antiquark production in small and low-mass strings. Since this behavior is not found in a statistical description of hadron production in proton-proton collisions, it may serve as a key observable to probe the hadronization mechanism in such collisions

Additional details

Identifiers

DOI
10.1103/PhysRevLett.88.202501;
arXiv
arXiv:hep-ph/0111187v1;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
88
Journal Issue
20
Journal Page Range
p. 202501-202501.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35019235
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
GEV RANGE 100-1000; OMEGA BARYONS; PARTICLE PRODUCTION; PROTON REACTIONS; PROTON-PROTON INTERACTIONS; PROTONS; QUARK-ANTIQUARK INTERACTIONS; QUARKS; RESONANCE PARTICLES
Descriptors DEC
BARYON REACTIONS; BARYON-BARYON INTERACTIONS; BARYONS; CHARGED-PARTICLE REACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; HADRONS; HYPERONS; INTERACTIONS; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUCLEON-NUCLEON INTERACTIONS; NUCLEONS; PARTICLE INTERACTIONS; PROTON-NUCLEON INTERACTIONS; STRANGE PARTICLES

Optional Information

Notes
(c) 2002 The American Physical Society