BRAHMS/QM Abstract/EM dissociation

From: Micheal Murray (murray@comp.tamu.edu)
Date: Fri Oct 20 2000 - 15:45:50 EDT

  • Next message: Christian Holm Christensen: "Re: Another abstract..."

                    I'm sorry that this QM abstract is so late. I just got
    back from wettist Wales.
                                              Michael
    
                       Photon Induced Nuclear Disociation at sqrt(s)=130GeV
                       =====================================================
    
    Peripheral AuAu collisions at sqrt(s)=130GeV generate intense
    electromagnetic fields which
    may break up the colliding nuclei. The study of such events may tell us
    about the photon flux
    generated by such collisions and the strength of the nuclear force. The
    rate of such collisions is
    determined by the total electromagnetic cross section.
    Using the BRAHMS multiplicity detectors to eliminate nulcear
    interactions we have studied
    multual electromagnetic disociation of neutrons.
    We have been able to isolate single, double and
    triple neutron peaks and have compared their relative weights to
    predictions from the RELDIS model
    of electromagnetic disssociation [1]. Fig 1 shows a preliminary
    comparison of the model predictions and data,
    the aggreement is fairly good. A comparison to lower energy data will
    also be made and physics implications
    will be discussed.
    
    [1] I. Peshanov et al, nucl-th/0007017,9912008, K, Chitkin et al,
    nucl-th/0002028
    
    
    



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