[Brahms-l] Fw: New STAR Paper on Particle Production at Forward Pseudorapidity

FYI
Subject: New STAR Paper on Particle Production at Forward Pseudorapidity


> Dear Sam, Bill, Flemming, and Wit,
> 
> It is my pleasure to announce STAR's intention to submit the
> following paper to Physical Review C in one week's time.
> 
> "Multiplicity and Pseudorapidity Distributions of Charged
> Particles and Photons at Forward Pseudorapidity in Au + Au Collisions
> at sqrt(s_NN) = 62.4 GeV".
> 
> The abstract is enclosed.
> 
> 
>                           Sincerely,
> 
>                           Tim Hallman
> 
> 
> 
> 
> 
> ---------------------------------------------------------------------
> 
> Abstract:
> 
> We present the centrality dependent measurement of multiplicity
> and pseudorapidity distributions of charged particles and photons
> in Au+Au collisions at \sqrt(s_NN) = 62.4 GeV.
> The charged particles and photons are measured in the pseudorapidity
> region 2.9 <= \eta <= 3.9 and 2.3 <= \eta  <= 3.7,
> respectively. We have studied the scaling of particle production
> with the number of participating nucleons and the number of
> binary collisions. The photon and charged particle production in
> the measured pseudorapidity range has been shown to be consistent
> with energy independent limiting fragmentation behavior.
> The photons are observed to follow a centrality independent
> limiting fragmentation behavior while for the charged particles
> it is centrality dependent. We have carried out
> a comparative study of the pseudorapidity distributions of positively
> charged hadrons, negatively charged hadrons, photons, pions, net
> protons in nucleus-nucleus collisions
> and pseudorapidity distributions from p+p collisions. From
> these comparisons we conclude that baryons in the
> inclusive charged particle distribution are responsible for the
> observed centrality dependence of limiting fragmentation. The mesons
> are found to follow an energy independent behavior of limiting
> fragmentation while the behavior of baryons seems to be energy dependent.
> 
> 
> 
>
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