Univ Sci & Technol China, Grad Sch, Chinese Acad Sci, Beijing 100039, Peoples R China
; Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia
; Univ Adelaide, Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia
; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
; Univ Mainz, Dept Phys, D-6500 Mainz, Germany
; Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China
The spectra of baryons which include two heavy quarks and one light quark can be treated as a two- body system,where two heavy quarks constitute a bosonic diquark. We derive the effective potential between the light quark and the heavy diquark. In this work we have discussed several serious problems: (1) the operator ordering, (2) the errors caused by the non - relativistic expansion, (3) spin spin coupling and (4) the mixing between baryon states with scalar - diquark and Vector - diquark.
Tong, SP,Ding, YB,Guo, XH,et al. Several crucial problems in evaluating spectra of baryons with two heavy quarks[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2000,24(7):691-696.
Tong, SP.,Ding, YB.,Guo, XH.,Jin, HY.,Li, XQ.,...&郭新恒.(2000).Several crucial problems in evaluating spectra of baryons with two heavy quarks.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,24(7),691-696.
Tong, SP,et al."Several crucial problems in evaluating spectra of baryons with two heavy quarks".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 24.7(2000):691-696.