[Brahms-l] Fw: New PHOBOS paper on particle production at very low pT

FYI
----------------------------------------------------------------
Flemming Videbaek
Physics Department
Brookhaven National Laboratory

e-mail: videbaek@bnl.gov
phone: 631-344-4106
----- Original Message ----- 
From: "Gunther Roland" <Gunter.Roland@cern.ch>
To: <tkirk@bnl.gov>; <zajc@nevis.columbia.edu>; <videbaek@bnl.gov>;
<hallman@bnl.gov>
Cc: <phobos@mit.edu>
Sent: Monday, December 29, 2003 7:59 AM
Subject: New PHOBOS paper on particle production at very low pT


>
>
> Dear Tom, Bill, Fleming and Tim,
>
> I'm pleased to announce our intention to release a new PHOBOS paper
> on particle production at very low pT in Au+Au collisions at 200 GeV.
> We are planning to submit the paper to PRL on Monday, Jan 5th. Preliminary
> results from this analysis were presented at QM'02. Please find the title
> and abstract for the paper below.
>
> Best regards,
>
> Gunther
>
> --------
>
> Particle production at very low transverse momenta
> in Au+Au collisions at sqrt(s_NN) = 200 GeV}
>
> We present results on charged particle production at very low
> transverse momenta in the 15% most central Au+Au collisions
> at sqrt(s_NN) = 200 GeV obtained with the PHOBOS detector
> at RHIC. The invariant yields were measured at mid-rapidity in
> the transverse momentum ranges from 30 to 50 MeV/c for charged pions,
> 90 to 130 MeV/c for charged kaons and 140 to 210 MeV/c for protons
> and antiprotons. No significant enhancement in low transverse momentum
> particle production is observed as compared to extrapolations of
> identified particle spectra measured at an intermediate p_T range.
> The spectra tend to flatten at low p_T, consistent with the
> expectations of transverse expansion of the system.
>


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