Re: [Brahms-l] qm06 proceeding

     Dear Truls,
         The paper is well written and you have done a good job on  
the plots. You report that Rca h+ = Rca h- and show that Raa h- > Raa  
h+ so this must imply that pp h- < pp h+. This difference then shows  
up 8 times in figures 2 and 3. Perhaps it would be better to comment  
on it in the paper and then show Raa (h+ + h-) in the figures. This  
would make them somewhat easier to understand. Currently there is so  
much information that it is difficult to read them in black and white  
at normal size. Could you plot one of the etas twice. First with  
solid white symbols and then overlay open symbols on top of it. For  
figure 4 I would drop the horizontal errors and move
/S=62 GeV from the vertical scale to a white box in between the two  
panels. Since our pp data are preliminary figures 3 and 4 probably  
should have "preliminary" added on the plot.

I didn't understand the last sentence of the paper. Surely the  
flatness of R_CuAu says that it is the volume of the nuclear system  
that determines the suppression.

Here are some English points.


Page 1 sentence 2 say "saturating from 4 to 20GeV"
where an enhancement of the high pT particles were seen
change to
where an enhancement of the yield of high pT particles was seen

Move
Measuring the nuclear modification factor as a function of centrality  
and
pseudorapidity will give information on the matter created in the  
fireball.
  to the previous paragraph.

Shift
The BRAHMS spectrometers were positioned at the same angles and magnetic
fields during the p+p run, as during the heavy ion runs. This was  
done to reduce
systematic uncertainties in the comparison of p+p to N-N collisions.
  until after you discuss our pp reference.
Say
"own p+p spectra at eta=3.1 These data were collected at the same  
magnetic field settings as the heavy ion data in order to minimize  
systematic errors"



On Jan 10, 2007, at 5:11 AM, Truls Martin Larsen wrote:

> Hi,
>
>         new version is attached. To be submitted on the 22. January...
>         Comments are welcome.
>
>         What were the actual positions, along the beampipe, for the CC
>         counters?
>
>         Cheers,
>                 Truls
>         --
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>         |Truls Martin Larsen                       /
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>
> <proceeding_tmlarsen_qm2006.pdf>
> <mime-attachment.txt>



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