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Spectrum and rearrangement decays of tetraquark states with four different flavors

机译:具有四种不同口味的Tetraquark状态的光谱和重排衰减

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We have systematically investigated the mass spectrum and rearrangement decay properties of the exotic tetraquark states with four different flavors using a color-magnetic interaction model. Their masses are estimated by assuming that the X ( 4140 ) is a c s c ˉ s ˉ tetraquark state and their decay widths are obtained by assuming that the Hamiltonian for decay is a constant. According to the adopted method, we find that the most stable states are probably the isoscalar b s u ˉ d ˉ and c s u ˉ d ˉ with J P = 0 + and 1 + . The width for most unstable tetraquarks is about tens of MeVs, but that for unstable c u s ˉ d ˉ and c s u ˉ d ˉ can be around 100?MeV. For the X ( 5568 ) , our method cannot give consistent mass and width if it is a b u s ˉ d ˉ tetraquark state. For the I ( J P ) = 0 ( 0 + ) , 0 ( 1 + ) double-heavy T b c = b c u ˉ d ˉ states, their widths can be several MeVs.
机译:通过使用彩色磁性相互作用模型,系统地系统地研究了异国Tetraquark状态的质谱和重排衰减性能。 通过假设X(4140)是C S C≠S∈Taquark状态,通过假设捕获捕获量是恒定的恒定来获得它们的衰减宽度来估计它们的质量。 根据采用的方法,我们发现最稳定的状态可能是ISOSCALAR B S U≠Dˉ和C S U≠Dˉ,使用J P = 0 +和1 +。 最不稳定的Tetraquarks的宽度是大约十几个MEV,但对于不稳定的C,而是可以大约100°C,而是可以大约100°。 对于X(5568),如果是B U S≠DˉTetaquark状态,我们的方法不能给出一致的质量和宽度。 对于i(j p)= 0(0 +),0(1 +)双重t b c = b c u≠dˉ状态,它们的宽度可以是几个mevs。

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