Hi I revised my abstract for DIS, and ill like to submit it to DNP, following our Friday discussions. Please comment- Flemming Minbias rapidity and pt distributions in pp at 62.4 and 200 GeV and comparison to pQCD calculations and PYTHIA. The BRAHMS experiment has measured min bias distribution of identified charged hadrons in pp collisions at 62.34and 200 GeV at RHIC. The data obtained in 2005 and 2006 are compared to older measurements at ISR. Systematic features of rapidity distributions are presented, in particular those on net proton and net-baryons. Extended longitudinal scaling is observed with no change in features up to 200 GeV. The rapidity distributions are compared to Pythia, and an observation on different modern tunes is made. Net-protons distributions are poorly described in all cases raising the issue where underlying events may be different than min bias and if usual models describing the non- central region well are valid in the full rapidity range.. In addition the high rapidity identified pt distributions are compared to NLO pQCD calculations. Flemming Videbaek videbaek @ bnl.gov Brookhaven National Lab Physics Department Bldg 510D Upton, NY 11973 phone: 631-344-4106 cell : 631-681-1596 _______________________________________________ Brahms-dev-l mailing list Brahms-dev-l_at_lists.bnl.gov https://lists.bnl.gov/mailman/listinfo/brahms-dev-lReceived on Sun Jun 27 2010 - 20:07:41 EDT
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