Mass spectrum of the scalar hidden charmed and bottomed tetraquark states
نویسنده
چکیده
In this article, we study the mass spectrum of the scalar hidden charmed and bottomed tetraquark states with the QCD sum rules. The numerical results are compared with the corresponding ones from the potential quark model. PACS number: 12.39.Mk, 12.38.Lg
منابع مشابه
Mass spectrum of the vector hidden charmed and bottomed tetraquark states
The Babar, Belle, CLEO, D0, CDF and FOCUS collaborations have discovered (or confirmed) a large number of charmonium-like states X(3940), X(3872), Y (4260), Y (4008), Y (3940), Y (4325), Y (4360), Y (4660), etc, and revitalized the interest in the spectroscopy of the charmonium states [1, 2, 3, 4]. Many possible assignments for those states have been suggested, such as multiquark states (whethe...
متن کاملA ug 2 00 8 Another tetraquark structure in the π + χ c 1 invariant mass distribution
In this article, we assume that the mesons in the πχc1 invariant mass distribution are scalar hidden charmed tetraquark states and calculate their masses with the QCD sum rules. The numerical result indicates that the masses are about MZ = (4.48 ± 0.12)GeV. In previous work, we observe that the masses of the vector hidden charmed tetraquark states are about MZ = (4.81±0.11)GeV or MZ = (4.83±0.1...
متن کاملAnother tetraquark structure in the π + χ c 1 invariant mass distribution
In this article, we assume that the mesons in the πχc1 invariant mass distribution are scalar hidden charmed tetraquark states and study their masses with the QCD sum rules. The numerical result indicates that the mass is about MZ = (4.19 ± 0.17)GeV, which is consistent with the experimental data. The hidden charmed mesons Z1 and Z2 may be tetraquark states, other possibilities, such as hadro-c...
متن کاملReanalysis of the mass spectrum of the scalar hidden charm and hidden bottom tetraquark states
In this article, we study the mass spectrum of the scalar hidden charm and hidden bottom tetraquark states which consist of the axial-axial type and the vector-vector type diquark pairs with the QCD sum rules. PACS number: 12.39.Mk, 12.38.Lg
متن کاملMass spectrum of the scalar hidden charm and bottom tetraquark states
In this article, we study the mass spectrum of the scalar hidden charm and bottom tetraquark states with the QCD sum rules. The numerical results are compared with the corresponding ones from a relativistic quark model based on a quasipotential approach in QCD. The relevant values from the constituent diquark model based on the constituent diquark masses and the spin-spin interactions are also ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2009