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Effects of qcd vacuum and stability of h dihyperonстатья
- Авторы: Dorokhov A.E., Kochelev N.I.
- Журнал: hep-ph/0411362
- Год издания: 1986
- Аннотация: Within the composite quark model taking into account the interaction of quarks in the bag with vacuum fields of QCD the masses of H (I = 0, S = −2, J = 0, 1C) and H (I = 0, S = −2, J = 1, 1C) dihyperons are estimated: MH = 2.16 GeV, MH∗ = 2.34 GeV. It is shown that the leading effect giving a stable with respect to strong decays H dihyperon is the instanton interaction forming diquarks: q2(J = 0,C = 3), q2(J = 0,C = 6). With the approach developed the contribution of QCD hyperfine interaction is suppressed, and instanton induced three-particle forces in multiquark hadrons (q3(J = 1/2, C = 8) - channel) are rather small.
- Добавил в систему: Дорохов Александр Евгеньевич