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题名: QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in alpha(s)
作者: Huang, HW ;  Chao, KT
刊名: PHYSICAL REVIEW D
出版日期: 1996
卷号: 54, 期号:11, 页码:6850-6854
关键词: LATTICE GAUGE-THEORY ;  CHARMONIUM ;  STATES ;  DEPENDENCE ;  SPIN
学科分类: Physics
通讯作者: Huang, HW , CCAST,WORLD LAB,POB 8730,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: The decay rates of P-wave heavy quarkonia to light hadrons are presented to leading order in upsilon(2) and next-to-leading order in alpha(s). They include contributions from both the color-singlet component and the color-octet component of quarkonia. Applying these results to charmonium and using measuring decay rates for the chi(c1) and chi(c2) by E760, we determine the two nonperturbative decay matrix elements, and then predict the hadronic decay rates of chi(c0) and h(c), and the electromagnetic decay rates of chi(c0) and chi(c2). The obtained decay rates of chi(c0) --> LH and chi(c0) --> gamma gamma are in agreement with the Crystal ball results, and also with the new measurements by BES. However, the results for Gamma(chi(c0) --> LH) are dependent on the choice of renormalization scale.
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/311006/12552
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. QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in alpha(s)[J]. PHYSICAL REVIEW D,1996,54(11):6850-6854.
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文件名: QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in αs.pdf
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