[Brahms-l] IA QM2006 abstract

      Dear all,

    Thanks to comments from Dieter, i got the version 2 for my QM2006
abstract. If there are last minute comments, please send them today. I
will fill my conference application form later today.

                 Regards,
                      Ionut

The abstract:


Strangeness production in Au+Au reactions at 62.4 AGeV

Ionut Cristian Arsene for BRAHMS Collaboration


The measurement of strangeness is a valuable tool for understanding
the reaction mechanism of nuclear collisions since all the strange
particles need to be created during the reaction. Also, strangeness
enhancement is one of the predicted signals of the QGP.
At low SPS energies, strangeness production (e.g. measured by
the k+/pi+ ratio) reaches a maximum which suggests some sort of a
transition to a new regime. At these energies statistical models
show that the system is at its maximum baryo-chemical potential.
The pbar/p ratio changes dramatically from AGS to RHIC energies.
A similar change of this ratio happens at RHIC energy going from
midrapidity to the fragmentation peak at forward rapidities.

In the present work we will discuss the behaviour of the strangeness
production (i.e. K/pi ratio) with rapidity (and net-baryon
content) in Au+Au collisions at 62.4 AGeV. In this particular reaction,
BRAHMS is able to identify particles of up to about 3.5 rapidity units and
thereby cover a wide range of pbar/p ratios, including the
fragmentation region. We will show spectra and ratios of identified
particles as a function of mT and rapidity.

I.Arsene et al., Quark Gluon Plasma and Color Glass Condensate at
RHIC? The perspective from the BRAHMS experiment, Nucl.Phys.A757(2005)1-27


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