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dc.contributor.authorSTAR Collaboration
Eppley, G.
Geurts, F.
Liu, J.
Llope, W.J.
McDonald, D.
Roberts, J.B.
Yepes, P.
dc.date.accessioned 2015-05-05T17:27:52Z
dc.date.available 2015-05-05T17:27:52Z
dc.date.issued 2012
dc.identifier.citation STAR Collaboration, Eppley, G., Geurts, F., et al.. "ρ0 photoproduction in AuAu collisions at √sNN=62.4 GeV measured with the STAR detector." Physical Review C, 85, no. 1 (2012) American Physical Society: 14910. http://dx.doi.org/10.1103/PhysRevC.85.014910.
dc.identifier.urihttps://hdl.handle.net/1911/80189
dc.description.abstract Vector mesons may be photoproduced in relativistic heavy-ion collisions when a virtual photon emitted by one nucleus scatters from the other nucleus, emerging as a vector meson. The STAR Collaboration has previously presented measurements of coherent ρ0 photoproduction at center of mass energies of 130 GeV and 200 GeV in AuAu collisions. Here, we present a measurement of the cross section at 62.4 GeV; we find that the cross section for coherent ρ0 photoproduction with nuclear breakup is 10.5±1.5±1.6 mb at 62.4 GeV. The cross-section ratio between 200 GeV and 62.4 GeV is 4.4±0.6, less than is predicted by most theoretical models. It is, however, proportionally much larger than the previously observed 15%±55% increase between 130 GeV and 200 GeV.
dc.language.iso eng
dc.publisher American Physical Society
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.title ρ0 photoproduction in AuAu collisions at √sNN=62.4 GeV measured with the STAR detector
dc.type Journal article
dc.citation.journalTitle Physical Review C
dc.citation.volumeNumber 85
dc.citation.issueNumber 1
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevC.85.014910
dc.type.publication publisher version
dc.citation.firstpage 14910


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