Re: [Brahms-l] Re: Stopping paper

Hei Peter,

a few minor comments:

abstract:

here we say "The net proton yield is constant for y<1 ... and increases 
to..."

On page 3, 2. paragr. we say "... the net proton dN/dy increases over
all three units of rapidity." This statement describes the behaviour of
fig.2 correctly, but contradicts somewhat our abstract.

I would rephrase the abstract:
"The net proton yield increases from dN/dy ~7 at y=0 to dN/dy ~12 at y=3."


page 2, 5. para.:
the corrections for secondary protons and especially for antiproton
absorption are large at low pt (<.5 GeV/c). We should say how big they are 
- I guess 10-20% at low pt and 5% at high pt?


page 4, 6. para.:

It is not clear to me what amount of the total energy is really measured.
we measure only about 2x30 net protons out of 360 participants.
So, how big is E for the 120 baryons in our acceptance
(eq. 3, integrated from -3 to +3)?

We should briefly discuss or at least mention some recent publications
which predict the net baryon rapidity distribution, e.g. 

1) NET BARYON DENSITY IN AU+AU COLLISIONS AT THE RELATIVISTIC HEAVY ION 
COLLIDER. By Steffen A. Bass (Duke U. & RIKEN BNL), Berndt Muller (Duke 
U.), Dinesh K. Srivastava (McGill U.),. DUKE-TH-02-232, Dec 2002. 4pp. 
Published in Phys.Rev.Lett.91:052302,2003 
e-Print Archive: nucl-th/0212103 

2) TRANSVERSE MOMENTUM DISTRIBUTION OF NET BARYON NUMBER AT RHIC.
By Steffen A. Bass (Duke U. & RIKEN BNL), Berndt Muller (Duke U.), Dinesh 
K. Srivastava (VECC, Calcutta),. Jul 2003. 8pp. Letter to the editor. 
Published in J.Phys.G29:L51-L58,2003 
e-Print Archive: nucl-th/0307027 

with best wishes,
Dieter


On Fri, 19 Dec 2003, Peter H. L. Christiansen wrote:

> Dear Collaborators
> 
> Flemming will announce today our intention to publish the stopping paper 
> to the other collaborators and we will therefore aim at submitting the 
> paper friday the 26th of December.
> 
> Merry Christmas, 
>    Peter Christiansen
> 
> 
> On Fri, 12 Dec 2003, Peter H. L. Christiansen wrote:
> 
> > Dear Collaborators
> > 
> > The stopping paper is close to finished and it is time for everybody to
> > comment on the language and content.
> > 
> > The stopping paper can be found in our paper cvs (December 12 version) 
> > and here :
> > http://www.nbi.dk/~pchristi/stopping.ps
> > http://www.nbi.dk/~pchristi/stopping.pdf
> > (Note that in the pdf version the figures are smaller than in the ps 
> > version which has the correct sizes)
> > There is a small amount of work going on to get the correct values of <dy> 
> > at AGS and SPS and a good value for the scaling <dy> ~ 0.58?? * y_beam. I 
> > think it is not going to change any conclusions except move the AGS 
> > and SPS points and the line a little bit down on figure 4. For SPS I know 
> > that it will make the <dy> go from 1.71 to 1.69 which is a very small 
> > effect.
> > 
> > I talked with Flemming and we agree to send the abstract to the other 
> > collaborations in the middle of next week if no serious problems are 
> > found, so that we can submit the paper close to christmas.  
> > 
> > I tried to follow the instructions on 
> > http://publish.aps.org/esubs/revtextips.html
> > to count the number of lines and I find 394 which is a lot less than the 
> > allowed 460.... but maybe I messed up somewhere. We have at least 
> > shortened it quite a lot here.
> > 
> > Have a nice weekend
> >    Peter
> > 
> > 
> > 
> > 
> > 
> > 
> 
> 

-- 
-----------------------------------------------------------------
Dieter Roehrich        |
Fysisk institutt       |            Email: Dieter.Rohrich@fi.uib.no 
Universitetet i Bergen |                        Tel:  +47-555-82722 
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N-5007 Bergen, Norway  | WWW: http://www.fi.uib.no/php/drhrich.html



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