Coherent Vector Meson Photoproduction with Nuclear Breakup in Relativistic Heavy Ion Collisions

Details Coherent Vector Meson Photoproduction with Nuclear Breakup in Relativistic Heavy Ion Collisions Coherent Vector Meson Photoproduction with Nuclear Breakup in Relativistic Heavy Ion Collisions

2002-05-10

arxiv.org/abs/nucl-th/0205031v1

Phys.Rev.Lett. 89 (2002) 012301

Physics

Nuclear Physics

Nuclear Theory

14 pages, including 4 figures

Scientific paper

10.1103/PhysRevLett.89.012301

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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