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arXiv · 1310.8127

Charmonium-like states from scattering on the lattice

Sasa Prelovsek·Luka Leskovec·Daniel Mohler
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Abstract

Three charmonium-like states were studied using lattice QCD. The candidate for X(3872) was found slightly below DD* threshold in the channel with J^PC=1^++ and I=0, where cc as well as DD* and $J/ψω$ interpolating operators were used. A charmonium-like channel with J^PC=1^+- and I=1 was also studied, as the recently discovered Z_c^+(3900) might reside there. Here $J/ψπ$ and DD* scattering states were found, but no candidate for the Z_c^+(3900). We present also preliminary results for the J^PC=0^++ charmonium channel, where cc, DD and $J/ψω$ interpolating operators were used. A candidate for a resonance, chi_c0^', that couples to DD in J^PC=0^++ was found.

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Sasa Prelovsek, Luka Leskovec, Daniel Mohler. 2013-11-19. Charmonium-like states from scattering on the lattice. https://arxiv.org/abs/1310.8127

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