Constituent quarks, diquarks and the N-Delta mass splitting

Authors
Karsch, F Hess, M Laermann, E Wetzorke, I
Citation
F. Karsch et al., Constituent quarks, diquarks and the N-Delta mass splitting, NUCL PH B-P, 73, 1999, pp. 213-215
Citations number
10
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
ISSN journal
09205632 → ACNP
Volume
73
Year of publication
1999
Pages
213 - 215
Database
ISI
SICI code
0920-5632(199903)73:<213:CQDATN>2.0.ZU;2-8
Abstract
We analyze hadron as well as quark and diquark correlation functions in Lan dau gauge in order to extract information on the spin dependence of the qua rk-quark interaction. We find evidence that the N - Delta mass splitting ca n be attributed to the spin dependence of the interaction between quarks in a colour anti-triplet state with spin 0 and 1, respectively. The lightest excitations are observed in the S = 0 channel. However, no evidence for a d eeply bound diquark state is found.