Pseudovector meson with strangeness and closed-charm

Details Pseudovector meson with strangeness and closed-charm Pseudovector meson with strangeness and closed-charm

2006-04-10

arxiv.org/abs/hep-lat/0604008v2

Phys.Rev.D73:111503,2006; Erratum-ibid.D75:019902,2007

Physics

High Energy Physics

High Energy Physics - Lattice

8 pages, 4 figures, v2: eq.(3) is corrected

Scientific paper

10.1103/PhysRevD.73.111503

We investigate the mass spectrum of 1^{+} exotic mesons with quark content (\c\s\cbar\qbar) or (\c\q\cbar\sbar), using molecular and diquark-antidiquark operators, in quenched lattice QCD with exact chiral symmetry. For the molecular operator {(\qbar\gamma_i\c)(\cbar\gamma_5\s)-(\cbar\gamma_i\s)(\qbar\gamma_5\c)} and the diquark-antidiquark operator {(\q^T C \gamma_i \c)(\sbar C \gamma_5 \cbar^T)- (\q^T C \gamma_5 \c)(\sbar C \gamma_i^T \cbar^T)}, both detect a 1^{+} resonance with mass around 4010 +- 50 MeV in the limit m_q -> m_{u,d}.

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