کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8198974 1528951 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gluon saturation effects in relativistic U+U collisions
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Gluon saturation effects in relativistic U+U collisions
چکیده انگلیسی
We examine entropy production in relativistic U + U collisions on the basis of a color glass condensate (CGC) type picture as implemented in the Kharzeev-Levin-Nardi model (KLN). In this framework, we find that the peak entropy density produced in tip-on-tip U + U collisions is about 30% greater than that seen in central Au + Au collisions. Although the resulting difference in the produced charged particle multiplicity between tip-on-tip and side-on-side collisions is smaller than that predicted by previous Glauber model estimates, it is still large enough to allow for experimental discrimination between average orientations of the uranium nuclei. We also point out that in the saturation/CGC approach the collision geometry plays a more important role than previously believed, and that the observed centrality dependence of the produced particle multiplicity per participant in Au + Au collisions can be qualitatively reproduced even without running coupling effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 638, Issues 2–3, 6 July 2006, Pages 171-177
نویسندگان
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