Update on Quarkonium Spectroscopy and $α_{strong}$ from NRQCD

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dc.creatorDavies, C. T. H.
dc.creatorHornbostel, K.
dc.creatorLepage, G. P.
dc.creatorLidsey, A. J.
dc.creatorMcCallum, P.
dc.creatorShigemitsu, J.
dc.creatorSloan, J.
dc.date1995-10-04
dc.date.accessioned2026-07-07T03:39:34Z
dc.date.available2026-07-07T03:39:34Z
dc.descriptionNRQCD results for Upsilon and Charmonium using both dynamical and quenched configurations are presented. We investigate dependence on the light dynamical quark mass. Preliminary dynamical ($n_f = 2$) Charmonium data are combined with quenched results to extract the strong coupling constant $α_P^{(n_f)}$ for the physical number of light dynamical quarks, $n_f = 3$. Good agreement is found with calculations based on the Upsilon system. We show that a discrepancy in $α_P^{(n_f=0)}$, found between the Upsilon and Charmonium systems in the quenched theory, disappears upon extrapolating to the physical number of flavors. Results for the strong coupling constant $α_{\overline{MS}}$ are presented and sources of systematic error investigated.
dc.description8 pages of tex with 2 uuencoded postscript figures. Contribution to LAT95
dc.identifierhttps://arxiv.org/abs/hep-lat/9510006
dc.identifierhttp://arxiv.org/abs/hep-lat/9510006
dc.identifierNucl.Phys.Proc.Suppl. 47 (1996) 409-416
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/38978
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleUpdate on Quarkonium Spectroscopy and $α_{strong}$ from NRQCD
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