Journal Article

PreJuSER-54701

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Transverse momentum distribution of vector mesons produced in ultraperipheral heavy ion collisions

Hencken, K.FZJ* ; Baur, G.FZJ* ; Trautmann, D.FZJ*

2006
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/7663  doi:10.1103/PhysRevLett.96.012303

Abstract: We study the transverse momentum distribution of vector mesons produced in ultraperipheral relativistic heavy ion collisions (UPCs). In UPCs there is no strong interaction between the nuclei, and the vector mesons are produced in photon-nucleus collisions where the (quasireal) photon is emitted from the other nucleus. Exchanging the role of both ions leads to interference effects. A detailed study of the transverse momentum distribution, which is determined by the transverse momentum of the emitted photon, the production process on the target, and the interference effect, is done. We study the unrestricted cross section and the one with an additional electromagnetic excitation of one or both ions; in the latter case small impact parameters are emphasized.

Keyword(s): scattering: heavy ion ; peripheral ; gold ; photon nucleus: nuclear reaction ; vector meson: photoproduction ; transverse momentum: momentum spectrum ; interference: effect ; total cross section ; differential cross section ; impact parameter ; approximation: semiclassical ; model: Glauber ; Brookhaven RHIC Coll ; CERN LHC Coll ; numerical calculations

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut 3 (Theoretische Kernphysik) (IKP-TH)

Research Program(s):

1. Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2006

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