2001/05/23 by Y. Sumino, Sumino, Y.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #hep-lat #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0105240
20 pages, 10 figures, Talk given at ``Accelerator and Particle Physics Institute (APPI 2001)'', Morioka, Japan, Feb. 20--22, 2001
arxiv created 2001/05/23 · arxiv updated 2009/11/30
We report new aspects of the recent theoretical progress in heavy quarkonium physics. (1) Contrary to wide beliefs, the gross structure of the bottomonium spectrum is described well by the non-relativistic boundstate theory based on perturbative QCD. (2) This leads to a new physical picture of the bottomonium states: the boundstate mass is composed mainly of the self-energies of b and bbar accumulated inside the boundstate. (3) A connection to the conventional phenomenological potential-model approaches is provided.