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题名: Cancellation of infrared divergences in hadronic annihilation decays of heavy quarkonia
作者: Huang, HW ;  Chao, KT
刊名: PHYSICAL REVIEW D
出版日期: 1997
卷号: 55, 期号:1, 页码:244-248
关键词: D-WAVE QUARKONIUM ;  STATES ;  QCD
学科分类: Physics
通讯作者: Huang, HW , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,BEIJING 100080,PEOPLES R CHINA.
部门归属: ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA
英文摘要: In the framework of a newly developed factorization formalism which is based on NRQCD, explicit cancellations are shown for the infrared divergences that appeared in the previously calculated hadronic annihilation decay rates of P-wave and D-wave heavy quarkonia. We extend them to a more general case that to leading order in upsilon(2) and next-to-leading order in alpha(s), the infrared divergences in the annihilation amplitudes of color-singlet Q (Q) over bar((2S+1)L(j)) pair can be removed by including the contributions of color-octet operators Q (Q) over bar[(2S+1)(L-1)(J')], Q (Q) over bar[(2S+1)(L-3)(J'')], ... in NRQCD. We also give the decay widths of D-3(J)-->LH at leading order in alpha(s).
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12541
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:
Huang, HW,Chao, KT. Cancellation of infrared divergences in hadronic annihilation decays of heavy quarkonia[J]. PHYSICAL REVIEW D,1997,55(1):244-248.
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