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J/[psi] and [psi]' total cross sections and formation times from data for charmonium suppression in pA collisions

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The recent data for E866 on the xF dependence for charmonium suppression in pA collisions at 800 GeV are analyzed using a time- and energy-dependent preformed charmonium absorption cross section. For charmonium-nucleon c.m. energy 10 GeV the initially produced premeson has an absorption cross sectio...

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Bibliographic Details
Main Authors: He, Yong-Bin (Author) , Hüfner, Jörg (Author) , Kopeliovich, Boris Z. (Author)
Format: Article (Journal)
Language:English
Published: 30 March 2000
In: Physics letters
Year: 2000, Volume: 477, Issue: 1, Pages: 93-98
ISSN:1873-2445
DOI:10.1016/S0370-2693(00)00198-2
Online Access:Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1016/S0370-2693(00)00198-2
Verlag, kostenfrei, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269300001982
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Author Notes:Y.B. He, J. Hüfner, B.Z. Kopeliovich
Description
Summary:The recent data for E866 on the xF dependence for charmonium suppression in pA collisions at 800 GeV are analyzed using a time- and energy-dependent preformed charmonium absorption cross section. For charmonium-nucleon c.m. energy 10 GeV the initially produced premeson has an absorption cross section of σpr≃3 mb. At the same energy but for the developed charmonium states one deduces for the total cross sections σtotJ/ψN=(2.8±0.3) mb, σtotψ′N=(10.5±3.6) mb. The date are compatible with a formation time τ1/2=0.6 fm/c in the rest frame of the charmonium.
Item Description:Im Titel ist ψ als griechischer Buchstabe dargestellt
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Physical Description:Online Resource
ISSN:1873-2445
DOI:10.1016/S0370-2693(00)00198-2

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