Charmonium Spectrum from Quenched Lattice QCD with Tadpole\\ Improvement Action

Chin. Phys. Lett.

2004, Vol. 21

Issue (11): 2136-2139 DOI:

Original Articles

Charmonium Spectrum from Quenched Lattice QCD with Tadpole\\ Improvement Action

LIU Da-Qing

Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918-4, Beijing 100039

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LIU Da-Qing 2004 Chin. Phys. Lett. 21 2136-2139

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Abstract We report our lattice simulation on the charmonium spectra in the quenched approximation. Because the complete adjustment on all the nonperturbative parameters needs much calculation time, we only adjust two of them, but with some rescaling for mass splitting. After the rescaling, the calculated masses of meson are 3.030GeV (ηc), 3.080GeV (J/ψ), 3.546GeV (hc) and 3.412 GeV (xc0) respectively, which is in agreement with the experimental results.

Keywords: 11.15.Ha 12.38.Gc 14.40.Lb

Published: 01 November 2004

PACS:	11.15.Ha	(Lattice gauge theory)
	12.38.Gc	(Lattice QCD calculations)
	14.40.Lb	(Charmed mesons (\|C\|>0, B=0))

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I11/02136

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