1998/02/21 by Pyungwon Ko, Ko, Pyungwon
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Rare-earth and actinide compounds #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9802385
Talk given at PPPP workshop, Seoul, Korea (Oct. 31 -- Nov. 2, 1997)
arxiv created 1998/02/21 · openalex publication_date 1998/02/21 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Recent developments in heavy quarknoium physics are reviewed in brief, including (i) nonrelativistic QCD(NRQCD), (ii) the importance of color-octet (QQ) 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) → Υ(1S) ππ.