Dear Collaborator,
The paper and analysis committee have been working to get a near final version of the p-bar/p ratio paper
ready for general distribution within the collaboration. The paper is attached as a postscript file.
The aim is to have the paper submitted next week if comments can be accomodated smoothly
within the present text. If at all possible we will like to have
your comments back by this coming Friday April 6, with Monday as the deadline. Please send you comments
to the whole committee to the e-mail adresses given below.
The committee consisted of
JHLee, JJ.Gardhoje, Ian Bearden, M Murray , D.Roerich, myself and in ex-officio basis Ole H. who initiated a
major rework of the first draft in mid-February.
The term near-final is used for a couple of reasons
a) It awaits comments from the collaboration
b) It is not complete - with pending information on
i) The effect of slow protons on MRS data (see open comment in text). The effect is likely not large at the lowest
bin of 0.4<pt<0.8, but MUST be quantified.
ii) Some references are open (frit..)
iii) There has been some problem with the 40 deg data. JH believes the data are reasonable, but will spend some additional time this week to check it out.
iv) The figures 2 and 3 need some final work in regard to font, line size and placement of text, and clear distintion between the
40 and 90 deg data (y-0 and .7) data.
We will like you to check the proper reference of your institution, grant acknowledgement, and also if you think there are people from you institution that due to their work in the earlier phases of the building of the BRAHMS experiment deeserves to
be authors on this first BRAHMS publication.
The data used in the analysis were first presented and discussed at QM by Ian and myself; later an extensive re-analysis with improved calibrations and cuts have been made. The p-bar/p ratios has changed somewhat e.g the y=2 has increased a bit from about 0.35, but with no change in overall conclusions. I will like to point out, that not all of the analysis has been presented to the collaboration in details. The committee is prepared to answer questions you have in this regard.
Supporting material can be found through the brahms private web pages
- IGBs qm talk (ref to BRAHMS/NBI web page)
- JJG's moriond talk which has the most recent FS pid plots (ref to nbi & brahms
page)
- JH qm poster (on brahms web page);
- JH proposed to make a link to additional figures used for the MRS
analysis.
- The centrality cut module description.
looking forward to your response
on behalf of the committee
Flemming
gardhoje@nbi.dk
jhlee@bnl.gov
bearden@nbi.dk
murray@comp.tamu.edu
Dieter.Rohrich@fi.uib.no
videbaek@bnl.gov
------------------------------------------------------
Flemming Videbaek
Physics Department
Brookhaven National Laboratory
tlf: 631-344-4106
fax 631-344-1334
e-mail: videbaek@bnl.gov
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