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题名: Decay widths of B-1 and B-2(*) up to the order O(l/m(Q)) in HQET
作者: Dai, YB ;  Zhu, SL
刊名: PHYSICAL REVIEW D
出版日期: 1998
卷号: 58, 期号:7, 页码:-
关键词: QCD SUM-RULES ;  QUARK EFFECTIVE THEORY ;  EXCITED HEAVY MESONS ;  PION WAVE-FUNCTION ;  CHIRAL PERTURBATION-THEORY ;  EFFECTIVE FIELD-THEORY ;  RESONANCE PHYSICS ;  FORM-FACTORS ;  SYMMETRY ;  MASSES
学科分类: Physics
通讯作者: Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We first improve the previous results on the masses of the doublets (0(+),1(+)) and ( 1(+),2(+)) with QCD sum rules up to the order of O(1/m(Q)) in HQET. With the mass matrix of the two 1 (+) slates, we obtain the mixing angle for the two states and construct the interpolating currents which couple to only one of the two eigenstates up to the order O(1/m(Q)). Using these results we derive the light-cone sum rules for the amplitudes of the pionic decay of B-1 and B-2* up to the order O(1/m(Q)) in HQET. The O(1/m(Q)) terms in these amplitudes are found to be small. When applied to D-1 and D-2* the theoretical results are in good agreement with experimental data though the theoretical uncertainty is sizable for the D system. [S0556-2821(98)02319-3]
收录类别: SCI
WOS记录号: WOS:000076196700026
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12253
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Dai, YB,Zhu, SL. Decay widths of B-1 and B-2(*) up to the order O(l/m(Q)) in HQET[J]. PHYSICAL REVIEW D,1998,58(7):-.
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