Precision charmonium spectroscopy from lattice QCD

Davies, C.T.H.; Hornbostel, K.; Lepage, G.P.; Lidsey, A.J.; Shigemitsu, J.; Sloan, J.H.

doi:10.1103/PhysRevD.52.6519

Precision charmonium spectroscopy from lattice QCD

C.T.H. Davies
(
- Glasgow U.
)
,
K. Hornbostel
(
- Southern Methodist U.
)
,
G.P. Lepage
(
- Cornell U., LNS
)
,
A.J. Lidsey
(
- Glasgow U.
)
,
J. Shigemitsu
(
- Ohio State U.
)

Jun, 1995

23 pages

Published in:

Phys.Rev.D 52 (1995) 6519-6529

e-Print:

hep-lat/9506026 [hep-lat]

DOI:

10.1103/PhysRevD.52.6519

Report number:

FSU-SCRI-95-40

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Abstract:

We present results for Charmonium spectroscopy using Non-Relativistic QCD (NRQCD). For the NRQCD action the leading order spin-dependent and next to leading order spin-independent interactions have been included with tadpole-improved coefficients. We use multi-exponential fits to multiple correlation functions to extract ground and excited

S

states. Splittings between the lowest

S

,

P

and

D

states are given and we have accurate values for the

S

state hyperfine splitting and the

\chi_c

fine structure. Agreement with experiment is good - the remaining systematic errors are discussed.

Note:

23 pages uuencoded latex file. Contains figures in latex

charmonium
hadron spectroscopy
quarkonium: mass spectrum
mass spectrum: quarkonium
psi mesons
lattice field theory
quantum chromodynamics: nonrelativistic
quark: propagator
meson: correlation function
Feynman graph: tadpole

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