Excited and exotic charmonium, D<inf>s</inf> and D meson spectra for two light quark masses from lattice QCD
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Cheung G.K.C, Oâ Hara C, Moir G, Peardon M, Ryan S.M, Thomas C.E, Tims D, For the Hadron Spectrum Collaboratio, Excited and exotic charmonium, D<inf>s</inf> and D meson spectra for two light quark masses from lattice QCD, Journal of High Energy Physics, 2016, 12, 2016, 089Download Item:
Abstract:
We present highly-excited charmonium,
D
s
and
D
meson spectra from dy-
namical 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 di erent
M
, we nd only
a mild light-quark mass dependence and no change in the overall pattern of states.
Author's Homepage:
http://people.tcd.ie/ryansinhttp://people.tcd.ie/peardonm
Description:
PUBLISHEDExport Date: 6 January 2017
Author: RYAN, SINEAD; PEARDON, MICHAEL
Type of material:
Journal ArticleSeries/Report no:
Journal of High Energy Physics2016
12
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Full text availableKeywords:
highly-excited charmoniumDOI:
http://dx.doi.org/10.1007/JHEP12(2016)089Metadata
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