کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10724737 | 1034033 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nuclear modification factor for charged pions and protons at forward rapidity in central Au + Au collisions at 200 GeV
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We present spectra of charged pions and protons in 0-10% central Au + Au collisions at sNN=200GeV at mid-rapidity (y=0) and forward pseudorapidity (η=2.2) measured with the BRAHMS experiment at RHIC. The spectra are compared to spectra from p+p collisions at the same energy scaled by the number of binary collisions. The resulting nuclear modification factors for central Au + Au collisions at both y=0 and η=2.2 exhibit suppression for charged pions but not for (anti-) protons at intermediate pT. The p¯/Ïâ ratios have been measured up to pTâ¼3GeV/c at the two rapidities and the results indicate that a significant fraction of the charged hadrons produced at intermediate pT range are (anti-) protons at both mid-rapidity and η=2.2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 650, Issue 4, 5 July 2007, Pages 219-223
Journal: Physics Letters B - Volume 650, Issue 4, 5 July 2007, Pages 219-223
نویسندگان
BRAHMS Collaboration BRAHMS Collaboration, I. Arsene, I.G. Bearden, D. Beavis, C. Besliu, B. Budick, H. Bøggild, C. Chasman, C.H. Christensen, P. Christiansen, R. Debbe, E. Enger, J.J. Gaardhøje, M. Germinario, K. Hagel, A. Holm, H. Ito, A. Jipa,