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Pseudovector meson with strangeness and closed charm

Ting-Wai Chiu¹ and Tung-Han Hsieh² (TWQCD Collaboration)

¹Department of Physics, National Taiwan University, Taipei, 10617, Taiwan
²Physics Section, Commission of General Education, National United University, Miao-Li, 36003, Taiwan

Phys. Rev. D 73, 111503(R) – Published 9 June, 2006Erratum Phys. Rev. D 75, 019902 (2007)

DOI: https://doi.org/10.1103/PhysRevD.73.111503

Abstract

We investigate the mass spectrum of $1^{+}$ exotic mesons with quark content $(c s \bar{c} \bar{q}) / (c q \bar{c} \bar{s})$ , using molecular and diquark-antidiquark operators, in quenched lattice QCD with exact chiral symmetry. For the molecular operator ${(\bar{q} γ_{i} c) (\bar{c} γ_{5} s) - (\bar{c} γ_{i} s) (\bar{q} γ_{5} c)}$ and the diquark-antidiquark operator ${[q^{T} C γ_{i} c] [\bar{s} C γ_{5} {\bar{c}}^{T}] - [q^{T} C γ_{5} c] [\bar{s} C γ_{i}^{T} {\bar{c}}^{T}]}$ , both detect a $1^{+}$ resonance with mass around $4010 \pm 50 MeV$ in the limit $m_{q} \to m_{u, d}$ .

Erratum

Erratum: Pseudovector meson with strangeness and closed charm [Phys. Rev. D 73, 111503 (2006)]

Ting-Wai Chiu and Tung-Han Hsieh (TWQCD Collaboration)

Phys. Rev. D 75, 019902 (2007)

Article Text

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