Dear Brahmin,
a thermal description of our k-/k+ versus pbar/p
data usually assumes strangeness neutrality. Usually this has
been done by considering ratios intergrated over 4pi, where it
is obviously true. One question that we can try to answer is
do we have strangeness neutrallity at each rapidity?
I asked the question of ZeWei Lin and found that this is not
quite true in AMPT. In the figure ZeWei has shown the strange
particles yeilds versus y and the ratio of Sbar/S * 50. This
is the curve with the solid black squares. It is peaked at
y=0. However within our acceptance of 0-3 it is within 5% of 1.
Unfortunately there is still some asymetry in AMPT between
the treatment of strange baryons and antibaryons. This may
be the reason why his k-/k+ is too high.
Michael
----- Forwarded message from Ziwei Lin <lin@kopc2.tamu.edu> -----
Date: Wed, 26 Jun 2002 08:37:36 -0500
From: Ziwei Lin <lin@kopc2.tamu.edu>
Reply-To: Ziwei Lin <lin@kopc2.tamu.edu>
Subject: strange neutrality figure
To: Michael Murray <murray@cycomp.tamu.edu>
----- End forwarded message -----
Michael Murray, Cyclotron TAMU, 979 845 1411 x 273, Fax 1899
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