Can X(3872) be a $J^{P}=2^{-}$ tetraquark state?

Details Can X(3872) be a $J^{P}=2^{-}$ tetraquark state? Can X(3872) be a $J^{P}=2^{-}$ tetraquark state?

2011-12-27

arxiv.org/abs/1112.5976v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

In this article, we test the nature of X(3872), which is assumed to be a P-wave $[cq]$-scalar-diquark $[\bar{c}\bar{q}]$-axial-vector-antidiquark tetraquark state with $J^{P}=2^{-}$. The interpolating current representing the $J^{P}=2^{-}$ state is proposed. Technically, contributions of the operators up to dimension six are included in the operator product expansion (OPE). The mass obtained for such state is $m_{2^{-}}=(4.38\pm 0.15) GeV$. We conclude that it is impossible to describe the X(3872) structure as $J^{P}=2^{-}$ tetraquark state.

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