COULOMB RESUMMATION FOR B(B)OVER-BAR SYSTEM NEAR-THRESHOLD AND PRECISION DETERMINATION OF ALPHA(S) AND M(B)

Authors
KUHN JH PENIN AA PIVOVAROV AA
Citation
Jh. Kuhn et al., COULOMB RESUMMATION FOR B(B)OVER-BAR SYSTEM NEAR-THRESHOLD AND PRECISION DETERMINATION OF ALPHA(S) AND M(B), Nuclear physics. B, 534(1-2), 1998, pp. 356-370
Citations number
14
Categorie Soggetti
Physics, Particles & Fields","Physics, Nuclear
Journal title
Nuclear physics. B → ACNP
ISSN journal
05503213
Volume
534
Issue
1-2
Year of publication
1998
Pages
356 - 370
Database
ISI
SICI code
0550-3213(1998)534:1-2<356:CRFBSN>2.0.ZU;2-Y
Abstract
We analyze sum rules for the Upsilon system with resummation of thresh old effects on the basis of the non-relativistic Coulomb approximation . We find for the pole mass of the bottom quark m(b) = 4.75 +/- 0.04 G eV and for the strong coupling constant alpha(s) (M-z) = 0.118 +/- 0.0 06. The origin of the contradiction between two recent estimates obtai ned within the same formal framework is clarified. (C) 1998 Published by Elsevier Science B.V.