Re: [Brahms-l] Draft version of "Charged particle ratios from p+p collisions at .."

Dear friends, 

Triggered by the email I have quickly read the p+p draft- but found no great indecency in it - perhaps to my regret.

In general I think that the story is well written and that it merits to be sent to publication quickly. I have but a few comments, which follow below:

Introduction, para 2, l +5: We show that ... Au+Au results ON PARTICLE RATIOS ...
                   para 2, l+4 : and conservation of isospin is important. 
                                      This is always important, in fact it is a conservation law for strong interactions. Perhaps one could explain it a bit better here and elsewhere stating that the overall particle mechanism can be seen as consisting of 2 parts, one apparently relevant at midrap. and consistent with pair production (string breaking) and one directly tied to the collision of protons and thus involving the isospin of the protons, this second part being more relevant at larger rapidities. 

chapt. 2, para 1, l-1 :similar to that --> ..to THOSE
              para 2, l+1: extracted -> obtained (sounds like a visit to the dentist)
              para 3, l+8: STar data .. AT y =0

figs 1 and 2: I suggest that we plot shaded bands of syst uncertainty underlying the data points.

chap2, last para, l-5: abrupt -> delete: it seems a bit strong and hinges on a single pint in the p ratios.
                               marked -> delete

fig 4. Take the box around the legend away.

chapt 5, para 1, l-3: move 'extending...' to right after 'we have a midrapidity source...'.

chapt 6, para 1, l+4: An analysis  - > Our analysis ...
                        l+10: How can the exponent be 0.29 and the similarity be clear over 3 units of rapidity. The lowest 2 points on the graph deviate significantly. Perhaps the best fit yields the exponent cited, but the points don't seem to follow a simple curve.!!!
                        l-3: ...dominated simply by phase space... . In the light of the comment above this sentence does not ring quite convincing.


Nive work. When are the spectra coming?

best regards and wishes for a pleasant summer
JJ


____________________________________________________________
Jens Jørgen Gaardhøje, Professor, Dr. Sc.
Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen, Denmark.
Tlf: (+45) 35 32 53 09, secr. (+45) 35 32 52 09, Fax: (+45) 35 32 50 16.
UNESCO Natl. Comm., secr. (+45) 33 92 52 16.
Email: gardhoje@nbi.dk.
____________________________________________________________

  ----- Original Message ----- 
  From: flemming videbaek 
  To: brahms-l 
  Sent: Friday, July 09, 2004 5:45 PM
  Subject: [Brahms-l] Draft version of "Charged particle ratios from p+p collisions at .."


  Dear Collaborator,


  The analysis of particle ratios in pp reaction from the run-2 data have
  been worked into a near final paper by the paper committee and working group consisting 
  of BHSamset, KHagel, Tveter, JHLee, JNatowitz and chaired by MJMurray.
  The paper have been prepared for PLB. 

  The data analysis have been done by BHSamset and KHagel. 
  The main findings have bee been presented at several collaboration meetings, and about the time of
  the Oslo meeting Bjoern and Kris had reached a consensus or their semi-indecently analysis.
  More details can be found at  this page:
  http://www4.rcf.bnl.gov/~bjornhs/ppanalinks.html
  which collects all the material Bjorn have been able to find from collaboration meetings, WebPages and
  analysis reports. It includes the unpublished analysis reports from Bjorn and the just posted
  Analysis note 51 by Kris.

  We realize this is the summer period, but will like to have your comments no
  later than July 30. If you have questions that relates to analysis, the comments better come ASAP 
  since BUS will be much less available for a couple of weeks. 
  Please send comments to Bjorn and the committee.

  The paper is available is several formats on can be found on .

   www.fys.uio.no/~bjornhs/brahms/pp/paper/ppratios_090704_color.pdf
   www.fys.uio.no/~bjornhs/brahms/pp/paper/ppratios_090704_color.ps
   www.fys.uio.no/~bjornhs/brahms/pp/paper/ppratios_090704_bw.pdf
   www.fys.uio.no/~bjornhs/brahms/pp/paper/ppratios_090704_bw.ps



  best regards
      Flemming


  ----------------------------------------------------------------
  Flemming Videbaek
  Physics Department
  Brookhaven National Laboratory

  e-mail: videbaek@bnl.gov
  phone: 631-344-4106


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