کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9861085 1528982 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dark matter and baryon asymmetry of the universe in large-cutoff supergravity
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Dark matter and baryon asymmetry of the universe in large-cutoff supergravity
چکیده انگلیسی
We propose a consistent scenario of the evolution of the universe based on the large cutoff supergravity (LCSUGRA) hypothesis of supersymmetry breaking, where the gravitino and sfermion become as heavy as ∼O(1-10TeV). With such a heavy gravitino, baryon asymmetry of the universe can be generated by the non-thermal leptogenesis via an inflaton decay without conflicting the serious gravitino problem. We also see that, in the LCSUGRA scenario, relic density of the lightest superparticle becomes consistent with the WMAP value of the dark matter density in the parameter region required for the successful non-thermal leptogenesis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 620, Issues 1–2, 28 July 2005, Pages 9-16
نویسندگان
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