X(3872) in lattice QCD with exact chiral symmetry
| dc.creator | TWQCD Collaboration | |
| dc.creator | Chiu, Ting-Wai | |
| dc.creator | Hsieh, Tung-Han | |
| dc.date | 2006-03-24 | |
| dc.date | 2006-07-20 | |
| dc.date.accessioned | 2026-07-07T10:44:54Z | |
| dc.date.available | 2026-07-07T10:44:54Z | |
| dc.description | We investigate the mass spectrum of $ 1^{++} $ exotic mesons with quark content $ (\c\q\cbar\qbar) $, using molecular and diquark-antidiquark operators, in quenched lattice QCD with exact chiral symmetry. For the molecular operator $ \{(\qbarγ_i\c)(\cbarγ_5\q)- (\cbarγ_i\q)(\qbarγ_5\c) \} $ and the diquark-antidiquark operator $ \{(\q^T C \gi \c)(\qbar C γ_5 \cbar^T)-(\qbar C \gi^T \cbar^T)(\q^T C γ_5 \c) \} $, both detect a resonance with mass around $ 3890 \pm 30 $ MeV in the limit $ m_q \to m_u $, which is naturally identified with $ X(3872) $. Further, heavier exotic meson resonance with $ J^{PC} = 1^{++} $ is also detected, with quark content $ (\c\s\cbar\sbar) $ around $ 4100 \pm 50 $ MeV. | |
| dc.description | 11 pages, 6 figures, v2: eq.(6) has been corrected, 4-charm operators are omitted, and references are updated | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0603207 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0603207 | |
| dc.identifier | Phys.Lett.B646:95-99,2007 | |
| dc.identifier | doi:10.1016/j.physletb.2007.01.019 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/182760 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | X(3872) in lattice QCD with exact chiral symmetry | |
| dc.type | text |