Ultra-peripheral collisions of relativistic heavy ions

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We report the first observation of exclusive {rho} production in ultra-peripheral collisions at RHIC. The {rho} are produced electromagnetically at large impact parameters where no hadronic interactions occur. The produced {rho} have a small perpendicular momentum, consistent with production that is coherent on both the photon emitting and scattering nuclei. We observe both exclusive {rho} production, and {rho} production accompanied by electromagnetic dissociation of both nuclei. We discuss models of vector meson production and the correlation with nuclear breakup. We also observe e{sup +}e{sup -} pair production in these ultra-peripheral collisions.

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Klein, S. & Collaboration, STAR January 1, 2001.

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Description

We report the first observation of exclusive {rho} production in ultra-peripheral collisions at RHIC. The {rho} are produced electromagnetically at large impact parameters where no hadronic interactions occur. The produced {rho} have a small perpendicular momentum, consistent with production that is coherent on both the photon emitting and scattering nuclei. We observe both exclusive {rho} production, and {rho} production accompanied by electromagnetic dissociation of both nuclei. We discuss models of vector meson production and the correlation with nuclear breakup. We also observe e{sup +}e{sup -} pair production in these ultra-peripheral collisions.

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INIS; OSTI as DE00787163

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  • International Nuclear Physics Conference, Berkeley, CA (US), 07/30/2001--08/03/2001

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  • Report No.: LBNL--48775
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 787163
  • Archival Resource Key: ark:/67531/metadc715233

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  • January 1, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • Sept. 1, 2016, 7:01 p.m.

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Klein, S. & Collaboration, STAR. Ultra-peripheral collisions of relativistic heavy ions, article, January 1, 2001; California. (digital.library.unt.edu/ark:/67531/metadc715233/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.