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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
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
Journal: High Energy Density Physics - Volume 1, Issue 1, December 2005, Pages 52-60
نویسندگان
Sidi C. Benzahra, Benjamin F. Bayman,