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Spin alignment of heavy meson revisited
Ma, JP; Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
2003
发表期刊INTERNATIONAL JOURNAL OF MODERN PHYSICS A
ISSN0217-751X
卷号18期号:8页码:1351-1356
摘要Using heavy quark effective theory a factorized form for inclusive production rate of a heavy meson can be obtained, in which the nonperturbative effect related to the heavy meson can be characterized by matrix elements defined in the heavy quark effective theory. Using this factorization, predictions for the full spin density matrix of a spin-1 and spin-2 meson can be obtained and they are characterized only by one coefficient representing the nonperturbative effect. Predictions for spin-1 heavy meson are compared with experiment performed at e(+)e(-) colliders in the energy range from roots = 10.5GeV to roots = 91GeV, a complete agreement is found for D*- and B*-meson. There are distinct differences from the existing approach and they are discussed.
部门归属Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Effective Field-theory D-star Fragmentation Matrix Decays Quarks
学科领域Physics
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收录类别SCI
WOS记录号WOS:000182338900027
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13337
专题理论物理所SCI论文
通讯作者Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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Ma, JP,Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Spin alignment of heavy meson revisited[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2003,18(8):1351-1356.
APA Ma, JP,&Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2003).Spin alignment of heavy meson revisited.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,18(8),1351-1356.
MLA Ma, JP,et al."Spin alignment of heavy meson revisited".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 18.8(2003):1351-1356.
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