ar X iv : 0 70 4 . 13 45 v 3 [ he p - ph ] 1 9 Ju n 20 07 Triquark structure and isospin symmetry breaking in exotic D s mesons
نویسنده
چکیده
The color anti-triplet triquark qq̄q̄ is considered as a compact component in the tetraquark structure cqq̄q̄ of exotic Ds mesons. We discuss the mass spectrum and the flavor mixing of the triquarks by using the instanton induced interaction and the one-gluon exchange potentials. As a characteristic property of the triquark, we investigate the isospin violation. It is shown that the flavor 3 (isosinglet) and 6 (isotriplet) states may be strongly mixed and then are identified with Ds(2632).
منابع مشابه
2 00 7 Triquark structure and isospin symmetry breaking in exotic D s mesons
The color anti-triplet triquark qq̄q̄ is considered as a compact component in the tetraquark structure cqq̄q̄ of exotic Ds mesons. We discuss the mass spectrum and the flavor mixing of the triquarks by using the instanton induced interaction and the one-gluon exchange potentials. As a characteristic property of the triquark, we investigate the isospin violation. It is shown that the flavor 3 (isosi...
متن کاملTriquark structure and isospin symmetry breaking in exotic D s mesons
The color anti-triplet triquark qq̄q̄ is considered as a compact component in the tetraquark structure cqq̄q̄ of exotic Ds mesons. We discuss the mass spectrum and the flavor mixing of the triquarks by using the instanton induced interaction and the one-gluon exchange potentials. As a characteristic property of the triquark, we investigate the isospin violation. It is shown that the flavor 3 (isosi...
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