Dear Jens Jorgen, and BRAHMS collaborators, Thank you for your comments. I cannot agree with you more on your point that "we MUST show our face to the public" ASAP. But I have a feeling that you might have misundstood some of my arguments. Let me clarify a couple points that you've made. 1. The proposal is NOT to delay our first publication. It can even expedite the procedure. We already have all particle ratios (pi-/pi+, K-/K+, pbar/p, pi/K) in MRS at 90 degree to go. I believe the material is strong enough to be published. To make the publication even nicer, we can (but don't have to) certainly include h+, h- spectra since we have nice spectra already. 2. The second paper I've proposed , rapidity dependent pbar/p ratio, can follow immediately. I don't think no other experiment can come up with pbar/p ratios at 4degree, and at 40/45 degree in a month or two no matter how hard they push for. This can make really a SYSTEMATIC and unique measurements. 3. I don't believe that the second paper I mentioned above would interfere with the process of publishing the dN/deta (multiplicity) paper. Regards, JH ----- Original Message ----- From: "Jens Jorgen Gaardhoje" <gardhoje@nbi.dk> To: <brahms-l@bnl.gov> Sent: Thursday, January 25, 2001 11:13 AM Subject: Re: BRAHMS first publication > > > Dear JH and BRAHMS friends. > > Many thanks for your proposal, JH. > I concur with you that we have material for more publications. I do not > , however, > think that we can live with the inevitable delays following from more > grandiose ambitions. > BRAHMS needs visibility ASAP. > > My feeling is the following: > 1. publish pbar/p with present content on the shortest possible time > scale. > I think we should keep the pi ratios and the K's as this gives > confidence in the entire analysis and supports the physics > conclusion. > If the p/pbar at 60 or 40 deg. is available within the next 2 weeks > we add the point > to the plots for better coverage. Else it will come in a later > publ. > > 2. The mult.paper has next priority. It should also go in very fast, > else PHOBOS will preempty the story. We now have dN/deta estimates from > 5 systems: si, Tiles, BB, MTPC1-tracks, T1-tracks. > To me the entire story looks very consistent. > > 3. The slopes and betters comprehensive ratios and DN/Dy can follow soon > afterwards or even go in simultaneously. I have just not seen any of > this yet, so I would think that it will take longer to produce a final > paper than item 1. By that time scale I would guess that we have the MC > acceptance corrections for the FS also so that we may address DN/DY or > at least DN2/DnDpt at forward angles. > > I think it is a fatal mistake to aim at including as much as possible in > each paper at the expense of delays. At the rate the other experiments > are going (and with no scruples) we MUST show our face to the public. If > we drag our feet, nobody will remember us for the extra point, but they > will certainly remember that we came after the train had left. > I would hate to go and argue for upgrades to BRAHMS if we don't have > results out. > > best regards to all > > JJ > > PS 1: Thanks to RAMI for converting the papers to Latex. > > PS 2: Who will look into the Nch/Npart-pair vs Npart? Why is our curve > so flat? There is physics in the shape of this curve. Is is because we > need a better geom. model. or because the momentum range is different > from PHOBOS and PHENIX? > > PS 3: I eagerly await comments on the physics in the 2 paper drafts from > the rest of the collaboration. Don't hold back! > > > > > Dear Collaborators, > > > > For the first publication of BRAHMS, I would like to propose > > that we write two separate papers (letters) on the particle ratios > > instead of one which is currently drafted. I believe this is NOT > > at cost of sacrificing qualities and timing of our first > > publication(s). > > > > - The time to take to submit our first paper should be similar > > (or shorter) as we currently planed ~ 1 month > > - By adding another unique result, ratios from MRS at > > 40/45 degree, we can publish more systematic measurements > > - We have nice and unique results. We can write two high-quality > > papers instead of one! > > - The time gap between two papers can be less than a month. > > > > My proposals for the two papers are > > > > 1) "Rapidity and centrality dependent pbar/p ratio in Au+Au Collisions > > at sqrt(s)=130AGeV". > > > > and > > > > 2) "Transverse-momentum and centrality dependent particle ratios > > (and spectra) at Mid-Rapidity in Au+Au collisions at sqrt(s)=130AGeV". > > > > > > The first one is to concentrate on pbar/p ratios including data sets > > from > > Mid-rapidity at 40/45, 90 degrees and FS at 4 degree: > > This will give very nice SYSTEMATIC measurements on net-proton > > distributions. > > - Systematic: 3 rapidity points instead of two > > - Unique ratios: 4 degree, 40/45 degree > > - I think we can produce particle ratios at MRS 40/45 degree in a > > month. > > > > The second paper includes pi-/pi+, K-/K+, pbar/p, K/pi ratios from MRS > > at 90 degree: > > - Independent measurements > > - High quality PID > > - Wide pt coverage, especially for pbar/p > > - Ratios at high pt (>1GeV/c) are not yet published > > - Particle spectra also can be included > > - This paper can be submitted first. > > > > Let me repeat. We have nice and unique results. > > I believe we can write two nice papers on particle ratios/(spectra) > > from our > > two spectrometers in a couple of month. > > > > Regards, JH > > > > -- > ____________________________________________________ > JENS JORGEN GAARDHOJE > Assoc. Prof. of Physics, Dr. Scient. > > Niels Bohr Institute, > University of Copenhagen > Blegdamsvej 17, 2100 Copenhagen > Denmark. > > Tlf: (+45) 35 32 53 09 (dir) > (+45) 35 32 52 09 (secr) > Fax: (+45) 35 32 50 16 > Email: gardhoje @ nbi.dk > Home page: http://alf.nbi.dk/~gardhoje > > -Chair Ph. D. School of Physics at NBI.F.AFG. > (secr. Frank Kristensen 35 32 04 41, Ørsted Lab.) > -Member Danish National Commission for UNESCO > (secr. Ulla Holm 35 32 52 72, NBI) > ___________________________________________________ >
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