کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10701273 1021069 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dissociation of a heavy quarkonium in quark-gluon plasma
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
Dissociation of a heavy quarkonium in quark-gluon plasma
چکیده انگلیسی
In this work we calculate the dissociation of heavy mesons such as the upsilon due to absorption of a thermal gluon in a quark-gluon plasma. We also calculate the dissociation of heavy mesons due to the effect of color charge screening. The lifetime of quarkonium moving with velocity v through a quark-gluon plasma at temperature T is computed. An explicit, configuration-space potential is found for the screened interaction between the quarks constituting the meson. This potential is non-spherical, but axially symmetric about the direction of v. We solve the Schrödinger equation for the relative motion of the quarks in this potential, and use the bound-state wavefunction as the initial state for the dissociation of the meson. The meson lifetime is thus determined as a function of v and T, and conclusions are drawn concerning the possibility of detection of the meson in a high-energy heavy-nucleus collision.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: High Energy Density Physics - Volume 1, Issue 1, December 2005, Pages 52-60
نویسندگان
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