Inclusive decay of heavy quarkonium

被引:0
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作者
Chang, CHV [1 ]
Chang, D [1 ]
机构
[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 30043, Taiwan
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中图分类号
O59 [应用物理学];
学科分类号
摘要
We review the recent developments in the theory of heavy quarkonium decays. The conventional perturbative QCD approach and singlet model are discussed. Factorization theorem is introduced that clarified the unfactorizable infrared divergence problem. Equivalently the problem can be formulated within the framework of nonrelativistic QCD (NRQCD) effective field theory. The calculations of the quarkonium decay rates in this approach are summarized.
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页码:65 / 80
页数:16
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