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Coherent vector-meson photoproduction with nuclear breakup in relativistic heavy-ion collisions

Baltz, AJ; Klein, SR and Nystrand, Joakim LU (2002) In Physical Review Letters 89(1).
Abstract
Relativistic heavy ions are copious sources of virtual photons. The large photon flux gives rise to a substantial photonuclear interaction probability at impact parameters where no hadronic interactions can occur. Multiple photonuclear interactions in a single collision are possible. In this Letter, we use mutual Coulomb excitation of both nuclei as a tag for moderate-impact-parameter collisions. We calculate the cross section for coherent vector-meson production accompanied by mutual excitation and show that the median impact parameter is much smaller than for untagged production. The vector-meson rapidity and transverse-momentum distribution are very different from untagged exclusive vector-meson production.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
89
issue
1
publisher
American Physical Society
external identifiers
  • wos:000176285700013
  • scopus:0036641036
ISSN
1079-7114
DOI
10.1103/PhysRevLett.89.012301
language
English
LU publication?
yes
id
10a85d8e-bae4-47bb-b064-b302282f25b3 (old id 334720)
date added to LUP
2007-08-08 08:54:36
date last changed
2017-12-10 03:48:28
@article{10a85d8e-bae4-47bb-b064-b302282f25b3,
  abstract     = {Relativistic heavy ions are copious sources of virtual photons. The large photon flux gives rise to a substantial photonuclear interaction probability at impact parameters where no hadronic interactions can occur. Multiple photonuclear interactions in a single collision are possible. In this Letter, we use mutual Coulomb excitation of both nuclei as a tag for moderate-impact-parameter collisions. We calculate the cross section for coherent vector-meson production accompanied by mutual excitation and show that the median impact parameter is much smaller than for untagged production. The vector-meson rapidity and transverse-momentum distribution are very different from untagged exclusive vector-meson production.},
  author       = {Baltz, AJ and Klein, SR and Nystrand, Joakim},
  issn         = {1079-7114},
  language     = {eng},
  number       = {1},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Coherent vector-meson photoproduction with nuclear breakup in relativistic heavy-ion collisions},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.89.012301},
  volume       = {89},
  year         = {2002},
}