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Recent Developments In Heavy Quarkonium Physics

Pyungwon Ko
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Abstract

Recent developments in heavy quarknoium physics are reviewed in brief, including (i) nonrelativistic QCD(NRQCD), (ii) the importance of color-octet $(Q\bar{Q})$ components in the decay and the production of a physical heavy quarkonium state, (iii) limitation of the NRQCD factorization and (iv) the double humps in the $ππ$ spectrum in the decay $Υ(3S) \to Υ(1S) ππ$.

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Pyungwon Ko. 1998-02-21. Recent Developments In Heavy Quarkonium Physics. https://arxiv.org/abs/hep-ph/9802385

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