Hi Zhongbao, Some comments and suggestions on the latest draft: Abstract: change last sentence: "...and the results indicate that a significant fraction of the charged hadrons produced at intermediate..." Para 1... "These experimental results have motivated several suggestions on how hadrons are produced at intermediate pT [9-12], such as the possibility that boosted quarks from a collectively expanding QGP [10-12] recombine to form the final-state hadrons. An interesting observation from the BRAHMS....collisions[4,8]. This raises the possibility that initial-state effects may also influence hadron production at intermediate pT [ref]." Para 2... "....at both mid-rapidity and forward pseudorapidity eta = 2.2. " (Otherwise you will be defining eta as a symbol that refers to rapidity...) Para 3... "...for the FS [8], where p is written in units of ..." (missing article) "...kaons up to momenta of 3.2 GeV/c and 2.0 GeV/c, respectively. For pions above 2 GeV/c..." General comment: It is not clear from the text how the overlap regions were handled, or what is intended by the estimates of kaon contamination of the pion and proton spectra. If you are doing what I think might be the case, I would suggest a rewording such as: "Above 2 GeV/c a correction is applied for the kaons that fall in the region where the pion and kaon 2 sigma PID cuts overlap. This allows the pion pT spectrum to be extended to 3 GeV/c, at which point the kaon correction is about 5%." "Between 7.1 GeV/c and 7.9 GeV/c, the proton spectrum is corrected for the kaons falling within the overlapping PID regions. Between 7.9 GeV/c and 9 GeV/c, the Cherenkov threshold for protons, the RICH detector is used to determine the kaon contamination of the proton spectrum. The kaon correction in this region is less than 6% of the proton yield. Above 9 GeV/C, the RICH detector can be used directly to identify the proton yields." Para 4... (last sentence) "...has not been corrected but is accounted for..." Para 5... (first sentence) "The top row..." Mid-way through this paragraph rapidity densities are given in units of GeV?! Maybe the unit can be moved inside the parenthesis to be associated with the slope parameters? Figure 1. I'm pretty sure the size of the inside captions will fail to satisfy the rules of the APS style manual. Also, the open cross should be specified as p+p. Para 6... "The bottom row of Figure 1..." "...making a comparison of anti-proton to pion yields difficult." Para 7... If possible I would state what part of the measurement has a 20% systematic uncertainty, and what has a 24% uncertainty. Stating a systematic uncertainty range seems strange... "Similar to the unidentified charged hadrons[4]... and levels off at a value below unity above 1.5 GeV/c, indicating that... "...yields at forward rapidity show an even stronger suppression, indicating...might be contributing to the strong high..." "This indicates that a significant part of the particle yield at high pT can be attributed to ..." Fig. 2: Same comment about quoting a 20-24% systematic uncertainty range. Para 8 and Fig. 3: I think you need to show the corresponding pbar/pi- ratios for pp collisions. This could be done with two curves and would help emphasize the importance of the reference spectra in obtaining the observed rapidity dependence of the RAA values. Para 9... "...effects such as gluon saturation contributing to the suppression. However, the suppression is not seen for (anti-)protons at intermediate pT at either mid-rapidity or forward pseudorapidity eta = 2.2. "The ratios at intermediate pT seem to decrease with rapidity. At mid-rapidity the ratio can be qualitatively described by a parton recombination model with collective flow." Comment: The final sentence focuses on the longitudinal extent of the created medium. It ignores the possibility that saturation effects may be playing a role. Is this fair? Overall, Nice job! ...steve On Jun 29, 2005, at 10:02 PM, yin.zhongbao@ift.uib.no wrote: > Dear All, > > thanks to Ramiro's comments, I have updated the paper and also updated > two references. It is still located at > www.ift.uib.no/~yin/hptPiAndProton_v5.pdf > www.ift.uib.no/~yin/hptPiAndProton_v5.ps > > Thank you for your further help and comments. > > Best regards, > Zhongbao > -- > ----------------------------------------------------- > Zhongbao YIN Phone: +47-55-582792 (O) > Address: +47-55-276803 (H) > Fantoftveien 14G 466 E-mail: > P.B. 694, 5075 Bergen Yin.Zhongbao@ift.uib.no > ------------------------------------------------------ > > > _______________________________________________ > Brahms-l mailing list > Brahms-l@lists.bnl.gov > http://lists.bnl.gov/mailman/listinfo/brahms-l _______________________________________________ Brahms-l mailing list Brahms-l@lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-lReceived on Thu Jun 30 19:10:31 2005
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