dc.creator | Cheung, Gavin | |
dc.creator | O'Hara, C | |
dc.creator | Moir, Graham | |
dc.creator | Peardon, M | |
dc.creator | Ryan, SM | |
dc.creator | Thomas, Christopher Edward | |
dc.creator | Tims, D | |
dc.date.accessioned | 2016-12-02 | |
dc.date.accessioned | 2018-11-24T23:19:36Z | |
dc.date.available | 2017-02-27T15:27:34Z | |
dc.date.available | 2018-11-24T23:19:36Z | |
dc.date.issued | 2016-12-19 | |
dc.identifier | https://www.repository.cam.ac.uk/handle/1810/262794 | |
dc.identifier.uri | http://repository.aust.edu.ng/xmlui/handle/123456789/3485 | |
dc.description.abstract | We present highly-excited charmonium, $\textit{D}$$_{s}$ and $\textit{D}$ meson spectra from dynamical lattice QCD calculations with light quarks corresponding to $\textit{M}$$_{π}$ ∼ 240 MeV and compare these to previous results with $\textit{M}$$_{π}$ ∼ 400 MeV. Utilising the distillation framework, large bases of carefully constructed interpolating operators and a variational procedure, we extract and reliably identify the continuum spin of an extensive set of excited mesons. These include states with exotic quantum numbers which, along with a number with non-exotic quantum numbers, we identify as having excited gluonic degrees of freedom and interpret as hybrid mesons. Comparing the spectra at the two different $\textit{M}$$_{π}$ , we find only a mild light-quark mass dependence and no change in the overall pattern of states. | |
dc.language | en | |
dc.publisher | Springer | |
dc.publisher | Journal of High Energy Physics | |
dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
dc.rights | Attribution 4.0 International | |
dc.rights | Attribution 4.0 International | |
dc.rights | Attribution 4.0 International | |
dc.subject | lattice field theory simulation | |
dc.subject | QCD phenomenology | |
dc.title | Excited and exotic charmonium, $\textit{D}$$_{s}$ and $\textit{D}$ meson spectra for two light quark masses from lattice QCD | |
dc.type | Article | |