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Title: Photoproduction of {rho}{sup 0} mesons in ultraperipheral heavy ion collisions at energies available at the BNL Relativistic Heavy Ion Collider (RHIC) and CERN Large Hadron Collider (LHC)

Abstract

We investigate the photoproduction of {rho} mesons in ultraperipheral heavy ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC) and CERN Large Hadron Collider (LHC) energies in the dipole approach and within two phenomenological models based on the color glass condensate (CGC) formalism. We estimate the integrated cross section and rapidity distribution for meson production and compare our predictions with the data from the STAR Collaboration. In particular, we demonstrate that the total cross section at RHIC is strongly dependent on the energy behavior of the dipole-target cross section at low energies, which is not well determined in the dipole approach. In contrast, the predictions at midrapidities at RHIC and in the full rapidity at LHC are under theoretical control and can be used to test QCD dynamics at high energies.

Authors:
 [1];  [2]
  1. Instituto de Fisica e Matematica, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900, Pelotas, RS (Brazil)
  2. Centro de Ciencias Exatas e Tecnologicas, Universidade Federal do Pampa, Campus de Bage, Rua Carlos Barbosa, CEP 96400-700, Bage, RS (Brazil)
Publication Date:
OSTI Identifier:
21296511
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 80; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevC.80.054901; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BNL; BROOKHAVEN RHIC; CERN LHC; COLOR MODEL; COMPARATIVE EVALUATIONS; CONDENSATES; DIPOLES; FORECASTING; HEAVY ION REACTIONS; MESONS; PARTICLE RAPIDITY; PHOTOPRODUCTION; QUANTUM CHROMODYNAMICS; TOTAL CROSS SECTIONS

Citation Formats

Goncalves, V. P., and Machado, M. V. T. Photoproduction of {rho}{sup 0} mesons in ultraperipheral heavy ion collisions at energies available at the BNL Relativistic Heavy Ion Collider (RHIC) and CERN Large Hadron Collider (LHC). United States: N. p., 2009. Web. doi:10.1103/PHYSREVC.80.054901.
Goncalves, V. P., & Machado, M. V. T. Photoproduction of {rho}{sup 0} mesons in ultraperipheral heavy ion collisions at energies available at the BNL Relativistic Heavy Ion Collider (RHIC) and CERN Large Hadron Collider (LHC). United States. doi:10.1103/PHYSREVC.80.054901.
Goncalves, V. P., and Machado, M. V. T. Sun . "Photoproduction of {rho}{sup 0} mesons in ultraperipheral heavy ion collisions at energies available at the BNL Relativistic Heavy Ion Collider (RHIC) and CERN Large Hadron Collider (LHC)". United States. doi:10.1103/PHYSREVC.80.054901.
@article{osti_21296511,
title = {Photoproduction of {rho}{sup 0} mesons in ultraperipheral heavy ion collisions at energies available at the BNL Relativistic Heavy Ion Collider (RHIC) and CERN Large Hadron Collider (LHC)},
author = {Goncalves, V. P. and Machado, M. V. T.},
abstractNote = {We investigate the photoproduction of {rho} mesons in ultraperipheral heavy ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC) and CERN Large Hadron Collider (LHC) energies in the dipole approach and within two phenomenological models based on the color glass condensate (CGC) formalism. We estimate the integrated cross section and rapidity distribution for meson production and compare our predictions with the data from the STAR Collaboration. In particular, we demonstrate that the total cross section at RHIC is strongly dependent on the energy behavior of the dipole-target cross section at low energies, which is not well determined in the dipole approach. In contrast, the predictions at midrapidities at RHIC and in the full rapidity at LHC are under theoretical control and can be used to test QCD dynamics at high energies.},
doi = {10.1103/PHYSREVC.80.054901},
journal = {Physical Review. C, Nuclear Physics},
number = 5,
volume = 80,
place = {United States},
year = {Sun Nov 15 00:00:00 EST 2009},
month = {Sun Nov 15 00:00:00 EST 2009}
}