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Decay widths of B-1 and B-2(*) up to the order O(l/m(Q)) in HQET
Dai, YB; Zhu, SL; Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
1998
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号58期号:7页码:-
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]
部门归属Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
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
学科领域Physics
收录类别SCI
WOS记录号WOS:000076196700026
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12253
专题理论物理所1978-2010年知识产出
通讯作者Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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GB/T 7714
Dai, YB,Zhu, SL,Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. 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):-.
APA Dai, YB,Zhu, SL,&Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(1998).Decay widths of B-1 and B-2(*) up to the order O(l/m(Q)) in HQET.PHYSICAL REVIEW D,58(7),-.
MLA Dai, YB,et al."Decay widths of B-1 and B-2(*) up to the order O(l/m(Q)) in HQET".PHYSICAL REVIEW D 58.7(1998):-.
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