Re: [Brahms-l] meson paper

Dear Djamel,

my comments. Most of them are a repetition of what I have sent around 
earlier within the paper comittee.


Abstract:
Why did you remove our numerical results? Now the abstract contains no 
information at all.

P.1, first par.:
remove "The chemical composition (abundances) of
the produced particles constitute an important tool to
test if equilibrium occurs in the course of the collision."

The statement is wrong. See the discussion at QM'02 in Nantes,
chaired by Koch. Elliptic flow might prove equilibrium; but not
particle ratios.


p2, second par.:

be more specific about the amount of particles from 
Lambda and K0 decays. This is important in order to use our data
for thermal model fits.

p3, figure 3:

exchange figure with inset. The figure itself contains no new information 
in addition to fig.2 and eqn. 1.


p3, second column, 2. par:

The statement 
"As mentioned, collisions at RHIC
are neither fully stopped nor fully transparent, although
a relatively high degree of transparency is observed [3]
corresponding to an average rapidity loss of the colliding
hadrons of about y 2.2." 

contradicts the statement (same page)
"The analysis of nuclear stopping in central Au+Au collisions at
psNN = 200 GeV [3] has demonstrated that about 72%
of the participant energy is lost during the collision and
potentially available for particle production, ..."

I would not call 72% stopping a "relatively high degree of transparency".
Remove the sentence.


p3, second column, 2. par.:

remove: "The fact that the obs. dist. are flatter at mid-rapidity and 
wider ...may point in this direction."

Don't try to educate the PRL reader that a wider Gaussian is automatically 
flatter around y0. That's the whole point of a Gaussian.

p4, sec. colummn, last par.:

remove 
"although the overall width and the behaviout of the distr.
around mid-rapidity suggest increased longitudinal expansion at 
RHIC energies reminiscent of the Bjorken picture."

The distributions are Gaussian, punktum. Small deviations
can easily be explained by our contaminations from weak decays.
There is no "behaviour around mid-rapidity".

What is an "increased longitudinal expansion"??
This makes no sense.


With best wishes,
Dieter



On Fri, 5 Mar 2004, Djamel Ouerdane wrote:

> Hi,
> 
> You can find the latest draft of the meson paper here:
> 
> http://www.nbi.dk/~ouerdane/mesonAuAu.ps
> http://www.nbi.dk/~ouerdane/mesonAuAu.pdf
> http://www.nbi.dk/~ouerdane/mesonAuAu.tex
> 
> or you can get it from CVS:
> 
> cvs -d /afs/rhic/brahms/BRAHMS_CVS co papers/mesonAuAu200
> 
> 
> The plan is to make an announcement soon, and submit it next Friday. 
> Please make final comments and corrections so that we can do it as I 
> mentioned.
> 
> Thanks,
> Djam
> 
> 
> 

-- 
--------------------------------------------------------------------
Dieter Roehrich                   |
Institutt for fysikk og teknologi | Email: Dieter.Rohrich@ift.uib.no 
Universitetet i Bergen            |               Tel: +47-555-82722 
Allegt. 55                        |               Fax: +47-555-89440  
N-5007 Bergen, Norway             |    http://www.ift.uib.no/~dieter




_______________________________________________
Brahms-l mailing list
Brahms-l@lists.bnl.gov
http://lists.bnl.gov/mailman/listinfo/brahms-l