کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10724491 | 1033996 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structure of mass gap between two spin multiplets
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structure of mass gap between two spin multiplets Structure of mass gap between two spin multiplets](/preview/png/10724491.png)
چکیده انگلیسی
Studying our semirelativistic potential model and the numerical results, which succeeds in predicting and reproducing recently discovered higher resonances of D, Ds, B, and Bs, we find a simple expression for the mass gap between two spin multiplets of heavy-light mesons, (0â,1â) and (0+,1+). The mass gap between chiral partners defined by ÎM=M(0+)âM(0â) and/or M(1+)âM(1â) is given by ÎM=M(0+)âM(0â)=M(1+)âM(1â)âÎQâmq in the limit of heavy quark symmetry, and including 1/mQ corrections, we have ÎMâÎQâmq+(1.28Ã105+4.26Ã102â
mq)/mQ with ÎQâ300MeV, a light quark mass mq, and a heavy quark mass mQ. This equation holds both for D and Ds heavy mesons. Our model calculations for the B and Bs also follow this formula.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 659, Issue 3, 24 January 2008, Pages 593-597
Journal: Physics Letters B - Volume 659, Issue 3, 24 January 2008, Pages 593-597
نویسندگان
Takayuki Matsuki, Toshiyuki Morii, Kazutaka Sudoh,