کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9861102 1528983 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Q-ball instability due to U(1) breaking
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Q-ball instability due to U(1) breaking
چکیده انگلیسی
Q-ball is a nontopological soliton whose stability is ensured by global U(1) symmetry. We study a Q-ball which arises in the Affleck-Dine mechanism for baryogenesis and consider its possible instability due to U(1) breaking term (A-term) indispensable for successful baryogenesis. It is found that the instability destroys the Q-ball if its growth rate exceeds inverse of the typical relaxation time scale of the Q-ball. However, the instability is not so strong as it obstructs the cosmological formation of the Q-balls.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 619, Issues 3–4, 21 July 2005, Pages 233-239
نویسندگان
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