Published December 2004 | Version v1
Journal article Metadata-only

Electric charge fluctuations in central Pb+Pb collisions at 20A, 30A, 40A, 80A, and 158A GeV

Creators

  • 1. Fachbereich Physik der Universitaet, Frankfurt (Germany)
  • 2. Rudjer Boskovic Institute, Zagreb (Croatia)

Description

Results are presented on event-by-event electric charge fluctuations in central Pb+Pb collisions at 20A,30A,40A,80A, and 158A GeV. The observed fluctuations are close to those expected for a gas of pions correlated by global charge conservation only. These fluctuations are considerably larger than those calculated for an ideal gas of deconfined quarks and gluons. The present measurements do not necessarily exclude reduced fluctuations from a quark-gluon plasma because these might be masked by contributions from resonance decays

Additional details

Identifiers

DOI
10.1103/PhysRevC.70.064903;
arXiv
arXiv:nucl-ex/0406013v1;

Publishing Information

Journal Title
Physical Review. C, Nuclear Physics
Journal Volume
70
Journal Issue
6
Journal Page Range
p. 064903-064903.7
ISSN
0556-2813
CODEN
PRVCAN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37011744
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
BAG MODEL; ELECTRIC CHARGES; FLUCTUATIONS; GEV RANGE; GLUONS; LEAD 208 REACTIONS; LEAD 208 TARGET; PARTICLE DECAY; PIONS; QUANTUM CHROMODYNAMICS; QUARK MATTER; QUARKS
Descriptors DEC
BOSONS; COMPOSITE MODELS; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; EXTENDED PARTICLE MODEL; FERMIONS; FIELD THEORIES; HADRONS; HEAVY ION REACTIONS; MATHEMATICAL MODELS; MATTER; MESONS; NUCLEAR REACTIONS; PARTICLE MODELS; POSTULATED PARTICLES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUARK MODEL; TARGETS; VARIATIONS

Optional Information

Notes
(c) 2004 The American Physical Society
Collaborations
NA49 Collaboration