Abstract
Attraction between quarks is a fundamental aspect of QCD. It is plausible that several of the most profound aspects of Low-Energy QCD dynamics are connected to diquark correlations, including: paucity of exotics (which is the foundation of the quark model and of traditional nuclear physics), similarity of mesons and baryons, color superconductivity at high density, hyperfine splittings, ▵I=1/2 rule, and some striking features of structure and fragmentation functions. After a brief overview of these issues, I discuss how diquarks can be studied in isolation, both phenomenologically and numerically, and present approximate mass differences for diquarks with different quantum numbers. The Mass-Loaded generalization of the Chew-Prautschi formula provides an essential tool.
Original language | English (US) |
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Title of host publication | Deserfest |
Subtitle of host publication | A Celebration of the Life and Works of Stanley Deser: Michigan Center for Theoretical Physics, University of Michigan, Ann Arbor, USA, 3-5 April 2004 |
Publisher | World Scientific Publishing Co. |
Pages | 322-338 |
Number of pages | 17 |
ISBN (Electronic) | 9789812774804 |
ISBN (Print) | 9812560823, 9789812560827 |
DOIs | |
State | Published - Jan 1 2006 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy