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Title: Dual interpretations of pion clouds at relativistic heavy ion collisions.

Abstract

No abstract prepared.

Authors:
;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
922911
Report Number(s):
ANL/HEP-PR-06-62
Journal ID: ISSN 0556-2813; PRVCAN; TRN: US0801673
DOE Contract Number:
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys. Rev. C; Journal Volume: 75; Journal Issue: Feb. 2007
Country of Publication:
United States
Language:
ENGLISH
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CLOUDS; HEAVY IONS; PIONS; PHYSICS; ION COLLISIONS

Citation Formats

Uretsky, J. L., and High Energy Physics. Dual interpretations of pion clouds at relativistic heavy ion collisions.. United States: N. p., 2007. Web. doi:10.1103/PhysRevC.75.024901.
Uretsky, J. L., & High Energy Physics. Dual interpretations of pion clouds at relativistic heavy ion collisions.. United States. doi:10.1103/PhysRevC.75.024901.
Uretsky, J. L., and High Energy Physics. Thu . "Dual interpretations of pion clouds at relativistic heavy ion collisions.". United States. doi:10.1103/PhysRevC.75.024901.
@article{osti_922911,
title = {Dual interpretations of pion clouds at relativistic heavy ion collisions.},
author = {Uretsky, J. L. and High Energy Physics},
abstractNote = {No abstract prepared.},
doi = {10.1103/PhysRevC.75.024901},
journal = {Phys. Rev. C},
number = Feb. 2007,
volume = 75,
place = {United States},
year = {Thu Feb 01 00:00:00 EST 2007},
month = {Thu Feb 01 00:00:00 EST 2007}
}
  • A gauge theory of pions interacting with {rho}-mesons at elevated temperatures is used to calculate the pressure in a hot pion gas. No reference is made to the pion's status as a QCD Goldstone boson. The role of the pion is merely that of a carrier of an SU(2) symmetry, gauged to create a vector-meson interaction, the {rho} playing the role of the interacting vector particle. The results are in rough agreement with much more elaborate calculations, both of the purely hadronic variety, and those that invoke quark-gluon degrees of freedom. The quark-gluon and purely hadronic calculations seemingly lead tomore » very similar predictions which are in accord with recent data from the BNL Relativistic Heavy Ion Collider (RHIC). The results motivate the question as to whether the two descriptions are dual to each other in the sense of being alternate models, each sufficient to explain the observed data.« less
  • We present a Monte Carlo version of the dual parton model for the description of particle production in hadron-nucleus and nucleus-nucleus collisions. Each nucleon-nucleon collision is described by the two-component dual parton model. Soft hadronic collisions and hard perturbative collisions (minijets) are the two components included in the unitarization scheme. Depending on the transverse momentum cutoff we find up to several thousand minijets in collisions of heavy ions at the TeV energies of the future CERN Large Hadron Collider (LHC). We get predictions up to energies reached at the LHC for the rapidity and transverse momentum distributions and the minijetmore » component of the hadronic energy density.« less
  • Within the framework of a relativistic transport model (ART 1.0) for heavy-ion collisions at AGS energies we study the transverse flow of pions with respect to that of nucleons using two complementary approaches. It is found that in central collisions pions develop a weak flow as a result of the flow of baryon resonances from which they are produced. On the other hand, they have a weak antiflow in peripheral collisions due to the shadowing of spectators. Furthermore, it is shown that both pion flow and antiflow are dominated by those with large transverse momenta. {copyright} {ital 1996 The Americanmore » Physical Society.}« less
  • In the present work we discuss the effect of N-body processes on pion multiplicity in relativistic heavy-ion reactions. This effect is analyzed in the energy range from the pion threshold up to 2 GeV/nucleon, for several projectile-target systems. The analysis is carried out in the context of intranuclear cascade calculations. It is shown that the inclusion of multibaryonic collisions is a crucial element in the study of the pion production mechanisms, being strongly dependent on the adopted correlation range for the particles involved in the N-body processes. {copyright} {ital 1997} {ital The American Physical Society}
  • No abstract prepared.