Excited and exotic charmonium, D s and D meson spectra for two light quark masses from lattice QCD
Abstract
We present highly-excited charmonium, D s and D meson spectra from dynamical lattice QCD calculations with light quarks corresponding to M π ~ 240 MeV and compare these to previous results with M π ~ 400 MeV. Utilising the distillation framework, large bases of carefully constructed interpolating operators and a variational procedure, we extract and reliably identify the continuum spin of an extensive set of excited mesons. These include states with exotic quantum numbers which, along with a number with non-exotic quantum numbers, we identify as having excited gluonic degrees of freedom and interpret as hybrid mesons. Comparing the spectra at the two different M π, we find only a mild light-quark mass dependence and no change in the overall pattern of states.
- Authors:
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- Contributing Org.:
- Hadron Spectrum Collaboration
- OSTI Identifier:
- 1544413
- Grant/Contract Number:
- AC05-00OR22725; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 12; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Lattice field theory simulation; QCD Phenomenology
Citation Formats
Cheung, Gavin K. C., O’Hara, Cian, Moir, Graham, Peardon, Michael, Ryan, Sinéad M., Thomas, Christopher E., and Tims, David. Excited and exotic charmonium, D s and D meson spectra for two light quark masses from lattice QCD. United States: N. p., 2016.
Web. doi:10.1007/JHEP12(2016)089.
Cheung, Gavin K. C., O’Hara, Cian, Moir, Graham, Peardon, Michael, Ryan, Sinéad M., Thomas, Christopher E., & Tims, David. Excited and exotic charmonium, D s and D meson spectra for two light quark masses from lattice QCD. United States. https://doi.org/10.1007/JHEP12(2016)089
Cheung, Gavin K. C., O’Hara, Cian, Moir, Graham, Peardon, Michael, Ryan, Sinéad M., Thomas, Christopher E., and Tims, David. Mon .
"Excited and exotic charmonium, D s and D meson spectra for two light quark masses from lattice QCD". United States. https://doi.org/10.1007/JHEP12(2016)089. https://www.osti.gov/servlets/purl/1544413.
@article{osti_1544413,
title = {Excited and exotic charmonium, D s and D meson spectra for two light quark masses from lattice QCD},
author = {Cheung, Gavin K. C. and O’Hara, Cian and Moir, Graham and Peardon, Michael and Ryan, Sinéad M. and Thomas, Christopher E. and Tims, David},
abstractNote = {We present highly-excited charmonium, D s and D meson spectra from dynamical lattice QCD calculations with light quarks corresponding to M π ~ 240 MeV and compare these to previous results with M π ~ 400 MeV. Utilising the distillation framework, large bases of carefully constructed interpolating operators and a variational procedure, we extract and reliably identify the continuum spin of an extensive set of excited mesons. These include states with exotic quantum numbers which, along with a number with non-exotic quantum numbers, we identify as having excited gluonic degrees of freedom and interpret as hybrid mesons. Comparing the spectra at the two different M π, we find only a mild light-quark mass dependence and no change in the overall pattern of states.},
doi = {10.1007/JHEP12(2016)089},
journal = {Journal of High Energy Physics (Online)},
number = 12,
volume = 2016,
place = {United States},
year = {Mon Dec 19 00:00:00 EST 2016},
month = {Mon Dec 19 00:00:00 EST 2016}
}
Web of Science
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