کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8184351 | 1527113 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Measurements of Ï Production and Nuclear Modification Factor at STAR
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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
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چکیده انگلیسی
Thermal suppression of quarkonium production in heavy-ion collisions, due to Debye screening of the quark-antiquark potential, has been proposed as a clear signature of Quark-Gluon Plasma (QGP) formation. At RHIC energies, the Ï meson is a clean probe of the early system due to negligible levels of enhancement from bb¯ recombination and non-thermal suppression from co-mover absorption. We report on our measurement of the Ïâe+eâ cross section in Au+Au collisions at sNN=200 GeV. We compute the Nuclear Modification Factor by comparing these results to new p+p measurements from 2009 (21 pbâ1 in 2009 compared to 7.9 pbâ1 in 2006). In order to have a complete assessment of both hot and cold nuclear matter effects on Upsilon production we also report on results from d+Au collisions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics A - Volumes 910â911, August 2013, Pages 466-469
Journal: Nuclear Physics A - Volumes 910â911, August 2013, Pages 466-469
نویسندگان
Anthony Kesich, STAR Collaboration STAR Collaboration,