From: Murray, Michael J (mjmurray@ku.edu)
Date: Wed Sep 17 2003 - 09:14:11 EDT
Dear Ian,
it does seem appropriate to use the grand-cononical ensemble in
limited
rapidity ranges for AuAu at least for dy=1. For smaller systems this breaks
down
obviously since their aren't enough particles. Currently we don't have a
good
micro-canonical approach for pp. Michael
Here is my draft abstract for QM04. Michael
>
>
> Rapidity Depdendence of the Temperature and Chemical
> Potential
>
> It is common to describe the particle abundances of from heavy ion
> collisions in
> terms of thermal fits. Normally this is done using 4pi yields but
> recently
> thermal models have been applied to data from narrow regions around
> y=0. The
> wide rapidity
> dependence of BRAHMS data allows us to test if AuAu collisions are in
> global
> thermal equilibrium of if there are a range of sources at different
> rapidities each of which is in local thermal equilibrium. W
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