new paper from Phobos

From: Flemming Videbaek (videbaek@sgs1.hirg.bnl.goV)
Date: Tue May 29 2001 - 16:58:17 EDT

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    I just received the following notice from Wit Busza on a muliplicity paper.
    As of this moment it is not available on the Phobos local pages.
    
    
    ------------------------------------------------------
    Flemming Videbaek
    Physics Department
    Brookhaven National Laboratory
    
    tlf: 631-344-4106
    fax 631-344-1334
    e-mail: videbaek@bnl.gov
    
    Subject: new paper from Phobos
    
    
    > Dear Colleagues:
    >
    > The Phobos collaboration has completed its internal review of a paper on
    > pseudorapidity distributions. We plan to submit it to PRL in a week's
    time.
    >
    > In accordance with our agreement here is the title and abstract of the
    paper.
    >
    >
    > The charged-particle pseudorapidity density $dN_{ch}/d\eta$ has been
    > measured for Au+Au collisions at $\sqrt{s_{NN}}$=130 GeV at RHIC, using
    the
    > PHOBOS apparatus. The total number of charged particles produced for the
    > 3\% most central Au+Au collisions for $|\eta|\leq$5.4 is found to be
    > 4200$\pm$400. The evolution of $dN_{ch}/d\eta$ with centrality is
    > discussed, and compared to model calculations and to data from
    > proton-induced collisions. The data show an enhancement in
    charged-particle
    > production at mid-rapidity, while in the fragmentation regions, the
    results
    > are consistent with expectations from $pp$ and $pA$ scattering.
    >
    >
    > The data and analysis are substantially the same as that presented by Alan
    > Wuosmaa and Gunther Roland at QM2001 and therefore we were not planning to
    > have a seminar at BNL on these results.
    >
    > Best regards,
    > Wit
    >
    >
    



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