Evaluation of the spectra of baryons containing two heavy quarks in a bag model
- Department of Physics, Nankai University, Tianjin 300071 (China)
- Graduate School of The Chinese Academy of Sciences, Beijing 100039 (China)
- China Center of Advanced Science and Technology (World Laboratory), P.O. Box 8730, Beijing 100080 (China)
In this work, we evaluate the mass spectra of baryons which consist of two heavy quarks and one light quark in the MIT bag model. The two heavy quarks constitute a heavy scalar or axial-vector diquark. Concretely, we calculate the spectra of vertical bar q(QQ{sup '})>{sub 1/2} and vertical bar q(QQ{sup '})>{sub 3/2} where Q and Q{sup '} stand for b and/or c quarks. Especially, for vertical bar q(bc)>{sub 1/2} there can be a mixing between vertical bar q(bc){sub 0}>{sub 1/2} and vertical bar q(bc){sub 1}>{sub 1/2} where the subscripts 0 and 1 refer to the spin state of the diquark (bc), the mixing is not calculable in the framework of quantum mechanics as the potential model is employed, but can be evaluated by the quantum field theory. Our numerical results indicate that the mixing is sizable.
- OSTI ID:
- 20705598
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 70, Issue 9; Other Information: DOI: 10.1103/PhysRevD.70.094004; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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