Chiral quarks,chiral limit,nonanalytic terms and baryon spectroscopy |
| |
| Affiliation: | 1. Center for Theoretical Physics, Sloane Laboratory, Yale University, New Haven, CT 06520-8120, U.S.A.;2. Dipartimento di Fisica dell''Università di Genova, I.N.F.N., Sezione di Genova via Dodecaneso 33, 16164 Genova, Italy;3. Center for Theoretical Physics, Sloane Laboratory, Yale University, New Haven, CT 06520-8120, U.S.A.;4. Dipartimento di Fisica dell''Università di Genova, I.N.F.N., Sezione di Genova via Dodecaneso 33, 16164 Genova, Italy;1. Institute of Applied Physics, University of Tsukuba, Tsukuba 305, Japan;2. KEK, High Energy Accelerator Research Organization, Tsukuba 305-0801, Japan;3. Department of Physics, Tohoku University, Sendai 980, Japan;4. Department of Physics, Tokyo Metropolitan University, Hachioji 192-03, Japan;5. Yasuda Women''s Junior College, Hiroshima 731-01, Japan;6. Faculty of Economics, Toyama University, Toyama 930, Japan;7. Department of Physics, Kyoto University, Kyoto 606, Japan;8. Department of Applied Physics, Tohoku-Gakuin University, Tagajo 985, Japan;9. Department of Electrical and Electronics Engineering, Kobe University, Kobe 657, Japan;10. Department of Physics, Hiroshima University, Higashi-Hiroshima 739, Japan;11. Research Institute for High Energy Physics, Helsinki University, SF-00170 Helsinki, Finland;12. Faculty of Engineering, Miyazaki University, Miyazaki 889-01, Japan;13. Department of Physics, Okayama University, Okayama 700, Japan;14. Department of Physics, Osaka University, Toyonaka 560, Japan;15. International Christian University, Mitaka 181, Japan;p. Hiroshima National College of Maritime Technology, Higashino 725-02, Japan;q. Facuty of Cross-Cultural Studies, Kobe University, Kobe 657, Japan;r. Ibaraki College of Technology, Katsuta 312, Japan;s. Department of Physics, Niigata University, Niigata 950-21, Japan;t. Center for Information Science, Kogakuin University, Tokyo 163-91, Japan;u. Department of Physics, Kogakuin University, Hachioji 192, Japan;v. Tsukuba College of Technology, Tsukuba 305, Japan;w. Naruto University of Education, Naruto 772, Japan;1. Institute for Theoretical Physics, University of Graz, Universitätsplatz 5, A-8010 Graz, Austria;2. Institute of Nuclear Research of the Hungarian Academy of Sciences, Bem tér 18/c, P.O. Box 51, H-4001 Debrecen, Hungary;1. Department of Physics and Mathematical Physics and Special Research Center for the Subatomic Structure of Matter, University of Adelaide, SA 5005, Australia;2. Instituto de Fı́sica Teórica, Universidade Estadual Paulista, Rua Pamplona 145, 01405-900 São Paulo, SP, Brazil;1. Department of Physics, University of Durham, Durham DH1 3LE, UK;2. H. Niewodniczanski Institute of Nuclear Physics, ul. Radzikowskiego 152, Krakow, Poland;3. Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg 188350, Russia |
| |
| Abstract: | It is shown that the principal pattern in baryon spectroscopy, which is associated with the flavor-spin hyperfine interactions, is due to the spontaneous breaking of chiral symmetry in QCD and persists in the chiral limit. All corrections, which are associated with a finite quark (Goldstone boson) mass are suppressed by the factor (μ/Λχ)2 and higher. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
