STI Publications - View Publication Form #12590
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Publication Information
| Title | Toward the excited isoscalar meson spectrum from lattice QCD | ||||
| Abstract | We report on the extraction of an excited spectrum of isoscalar mesons using lattice QCD. Calculations on several lattice volumes are performed with a range of light quark masses corresponding to pion masses down to about 400 MeV. The distillation method enables us to evaluate the required disconnected contributions with high statistical precision for a large number of meson interpolating fields. We find relatively little mixing between light and strange in most JPC channels; one notable exception is the pseudoscalar sector where the approximate SU(3)F octet, singlet structure of the {\eta}, {\eta}' is reproduced. We extract exotic JPC states, identified as hybrid mesons in which an excited gluonic field is coupled to a color-octet qqbar pair, along with non-exotic hybrid mesons embedded in a qqbar-like spectrum. | ||||
| Author(s) | Robert Edwards, Jozef Dudek, Christopher Thomas, Peng Guo | ||||
| Publication Date | November 2013 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
| Funding Source | |||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review D |
| Refereed | Yes |
| Volume | 88 |
| Issue | 09 |
| Page(s) | 094505 (19 pages) |
Attachments/Datasets/DOI Link
| Document(s) |
isoscalar3.pdf
(STI Document)
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| DOI Link | |
| Dataset(s) | (none) |
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