Isoscalar meson spectroscopy from lattice QCD
We extract to high statistical precision an excited spectrum of single-particle isoscalar mesons using lattice QCD, including states of high spin and, for the first time, light exotic JPC isoscalars. The use of a novel quark field construction has enabled us to overcome the long-standing challenge o...
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| Veröffentlicht in: | Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2011-06, Vol.83 (11) |
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| container_issue | 11 |
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| container_title | Physical review. D, Particles, fields, gravitation, and cosmology |
| container_volume | 83 |
| creator | Jozef Dudek, Robert Edwards, David Richards, Christopher Thomas, Balint Joo, Michael Peardon |
| description | We extract to high statistical precision an excited spectrum of single-particle isoscalar mesons using lattice QCD, including states of high spin and, for the first time, light exotic JPC isoscalars. The use of a novel quark field construction has enabled us to overcome the long-standing challenge of efficiently including quark-annihilation contributions. Hidden-flavor mixing angles are extracted and while most states are found to be close to ideally flavor mixed, there are examples of large mixing in the pseudoscalar and axial sectors in line with experiment. The exotic JPC isoscalar states appear at a mass scale comparable to the exotic isovector states. |
| doi_str_mv | 10.1103/PhysRevD.83.111502 |
| format | Article |
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| identifier | ISSN: 1550-7998 |
| ispartof | Physical review. D, Particles, fields, gravitation, and cosmology, 2011-06, Vol.83 (11) |
| issn | 1550-7998 1550-2368 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1022615 |
| source | American Physical Society Journals |
| subjects | ACCURACY CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CONSTRUCTION ISOVECTORS MESON SPECTROSCOPY MESONS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PSEUDOSCALARS QUANTUM CHROMODYNAMICS QUARKS SPIN |
| title | Isoscalar meson spectroscopy from lattice QCD |
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