Baryon stopping and charged particle production from lead-lead collisions at 158 GeV per nucleon

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Net proton (proton minus antiproton) and negative charge hadron spectra (h-) from central Pb+Pb collisions at 158 GeV per nucleon at the CERN Super Proton Synchrotron were measured and compared to spectra from central collisions of the lighter S+S system. Net baryon distributions were derived from those of net protons and net lambdas. Stopping, or rapidity shift with respect to the beam, of net protons and net baryons increase with system size. The mean transverse momentum &60;pT&62; of net protons also increase with system size. The h- rapidity density scales with the number of participant nucleons for nuclear collisions, where ... continued below

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Toy, Milton Y. July 1, 1999.

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Net proton (proton minus antiproton) and negative charge hadron spectra (h-) from central Pb+Pb collisions at 158 GeV per nucleon at the CERN Super Proton Synchrotron were measured and compared to spectra from central collisions of the lighter S+S system. Net baryon distributions were derived from those of net protons and net lambdas. Stopping, or rapidity shift with respect to the beam, of net protons and net baryons increase with system size. The mean transverse momentum &60;pT&62; of net protons also increase with system size. The h- rapidity density scales with the number of participant nucleons for nuclear collisions, where their &60;pT&62; is independent of system size. The &60;pT&62; dependence upon particle mass and system size is consistent with larger transverse flow velocity at midrapidity for central collisions of Pb+Pb compared to that of S+S.

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INIS; OSTI as DE00767742

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  • Other Information: TH: Thesis (Ph.D.); Submitted to University of California, Los Angeles, CA (US)

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  • Report No.: LBNL--45935
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 767742
  • Archival Resource Key: ark:/67531/metadc719326

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  • July 1, 1999

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  • Sept. 29, 2015, 5:31 a.m.

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  • Sept. 1, 2016, 6:58 p.m.

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Toy, Milton Y. Baryon stopping and charged particle production from lead-lead collisions at 158 GeV per nucleon, thesis or dissertation, July 1, 1999; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc719326/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.