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Cancellation of infrared divergences in hadronic annihilation decays of heavy quarkonia
Huang, HW; Chao, KT; Huang, HW , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,BEIJING 100080,PEOPLES R CHINA.
1997
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号55期号:1页码:244-248
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).
部门归属ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA
关键词D-wave Quarkonium States Qcd
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12541
专题理论物理所SCI论文
通讯作者Huang, HW , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,BEIJING 100080,PEOPLES R CHINA.
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Huang, HW,Chao, KT,Huang, HW , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,BEIJING 100080,PEOPLES R CHINA.. Cancellation of infrared divergences in hadronic annihilation decays of heavy quarkonia[J]. PHYSICAL REVIEW D,1997,55(1):244-248.
APA Huang, HW,Chao, KT,&Huang, HW , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,BEIJING 100080,PEOPLES R CHINA..(1997).Cancellation of infrared divergences in hadronic annihilation decays of heavy quarkonia.PHYSICAL REVIEW D,55(1),244-248.
MLA Huang, HW,et al."Cancellation of infrared divergences in hadronic annihilation decays of heavy quarkonia".PHYSICAL REVIEW D 55.1(1997):244-248.
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