Excited and exotic charmonium, and meson spectra for two light quark masses from lattice QCD
Oct 4, 201622 pages
Published in:
- JHEP 12 (2016) 089
- Published: Dec 19, 2016
e-Print:
- 1610.01073 [hep-lat]
Report number:
- DAMTP-2016-63
View in:
Citations per year
Abstract: (Springer)
We present highly-excited charmonium, D and D meson spectra from dynamical lattice QCD calculations with light quarks corresponding to M ∼ 240 MeV and compare these to previous results with M ∼ 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 , we find only a mild light-quark mass dependence and no change in the overall pattern of states.Note:
- 21 pages, 8 figures, minor changes to reflect published version
- Lattice field theory simulation
- QCD Phenomenology
- charmonium: hadron spectroscopy
- D/s: mass spectrum: calculated
- quantum number: exotic
- meson: hybrid
- excited state
- spin
- quark: mass dependence
- quantum chromodynamics: lattice
References(70)
Figures(11)
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