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Semileptonic decays of heavy mesons to light pseudoscalar mesons in the BS formalism
Liang, GW; Liu, JF; Chao, KT; Liang, GW , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
1998
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号30期号:3页码:457-464
摘要The decay processes from heavy to light pseudoscalar mesons such as pi, K, eta, eta' are studied in a relativistic constituent quark model based on the BS formalism. It is emphasized that the negative energy projector operators's contributions in the BS wavefunctions for light pseudoscalar mesons have to be considered. By taking into account these contributions, the previously encountered difficulties in calculating the decay constants and form factors are found to le removed. All the form factors for transitions such as D --> pi, D --> K, D-s --> K, D-s --> eta, D-s --> eta', B --> pi, B-s --> K are estimated and the branching ratios for these semileptonic decays are calculated. The results of our calculations are consistent with experimental values.
部门归属Peking Univ, Dept Phys, Beijing 100871, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Form-factors Pion Quarks
学科领域Physics
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收录类别SCI
WOS记录号WOS:000077243600027
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12246
专题理论物理所1978-2010年知识产出
通讯作者Liang, GW , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
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GB/T 7714
Liang, GW,Liu, JF,Chao, KT,et al. Semileptonic decays of heavy mesons to light pseudoscalar mesons in the BS formalism[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1998,30(3):457-464.
APA Liang, GW,Liu, JF,Chao, KT,&Liang, GW , Peking Univ, Dept Phys, Beijing 100871, Peoples R China..(1998).Semileptonic decays of heavy mesons to light pseudoscalar mesons in the BS formalism.COMMUNICATIONS IN THEORETICAL PHYSICS,30(3),457-464.
MLA Liang, GW,et al."Semileptonic decays of heavy mesons to light pseudoscalar mesons in the BS formalism".COMMUNICATIONS IN THEORETICAL PHYSICS 30.3(1998):457-464.
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