کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9860905 1528973 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Diomega production in relativistic heavy ion collisions
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Diomega production in relativistic heavy ion collisions
چکیده انگلیسی
Using a multiphase transport model, we study the production of a new strange dibaryon (ΩΩ)0+ in dense hadronic matter formed in relativistic heavy ion collisions. The (multi-)strange baryons (Ξ and Ω) are produced by strangeness-exchange reactions between antikaons and hyperons in the pure hadronic phase. The rescattering involving Ω(s) at midrapidity leads to a production probability of ≈2.8×10−6(ΩΩ)0+ per event for central Au + Au collisions at the RHIC energy of s=130AGeV. The production probability would be enhanced by about one order of magnitude if (ΩΩ)0+ and Ω reach chemical equilibrium during heavy ion collisions. We further find that the yield of (ΩΩ)0+ increases continuously from SPS to the highest RHIC energy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 624, Issues 3–4, 29 September 2005, Pages 210-216
نویسندگان
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