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High Energy Physics - Lattice

arXiv:hep-lat/0511015 (hep-lat)
[Submitted on 6 Nov 2005 (v1), last revised 4 Mar 2006 (this version, v2)]

Title:Estimate of the charmed 0-- hybrid meson spectrum from quenched lattice QCD

Authors:Yan Liu, Xiang-Qian Luo (Zhongshan Univ.)
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Abstract: We compute from quenched lattice QCD the ground state masses of the charmed hybrid mesons cbar c g, with exotic quantum numbers JPC=1-+, 0+- and 0--. The 0-- hybrid meson spectrum has never been provided by lattice simulations due to the difficulties to extract high gluonic excitations from noise. We employ improved gauge and fermion actions on the anisotropic lattice, which reduce greatly the lattice artifacts, and lead to very good signals. The data are extrapolated to the continuum limit, with finite size effects under well control. For 1-+ and 0+- hybrid mesons, the ground state masses are 4.405(38) GeV and 4.714(52) GeV. We predict for the first time from lattice QCD, the ground state mass of 0-- to be 5.883(146) GeV.
Comments: Version accepted for publication in Physical Review D
Subjects: High Energy Physics - Lattice (hep-lat); High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:hep-lat/0511015
  (or arXiv:hep-lat/0511015v2 for this version)
  https://doi.org/10.48550/arXiv.hep-lat/0511015
Journal reference: Phys.Rev.D73:054510,2006
Related DOI: https://doi.org/10.1103/PhysRevD.73.054510

Submission history

From: Xiang-Qian Luo [view email]
[v1] Sun, 6 Nov 2005 23:22:52 UTC (37 KB)
[v2] Sat, 4 Mar 2006 22:43:18 UTC (34 KB)
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