The spectrum of charmonium-like vector mesons in lattice QCD

Details The spectrum of charmonium-like vector mesons in lattice QCD The spectrum of charmonium-like vector mesons in lattice QCD

2006-12-21

arxiv.org/abs/hep-lat/0612025v1

Pos LAT2006:170,2007

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, based on talks given at Lattice 2006, Tucson, Arizona, July 23-28, 2006, and at The International Workshop on B Facto

Scientific paper

We present the first lattice results of the spectrum of exotic vector mesons extracted from the molecular and diquark-antidiquark operators, with quark fields c-q-cbar-qbar, and c-s-cbar-qbar (c-q-cbar-sbar) respectively, in lattice QCD with exact chiral symmetry. Our results suggest that X(3872) and Y(4260) are in the spectrum of QCD, with J^{PC} = 1^{++} and 1^{--} respectively. Moreover, we obtain the spectrum of heavier exotic mesons with c-s-cbar-ubar (c-u-cbar-sbar), c-s-cbar-dbar (c-d-cbar-sbar), c-s-cbar-sbar, and c-c-cbar-cbar, as the first theoretical predictions from lattice QCD.

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