scholarly journals Heavy quark masses from sum rules in four-loop approximation

2007 ◽  
Vol 778 (1-2) ◽  
pp. 192-215 ◽  
Author(s):  
Johann H. Kühn ◽  
Matthias Steinhauser ◽  
Christian Sturm
Keyword(s):  
Heavy Quark ◽  
Sum Rules ◽  
Quark Masses ◽  
Loop Approximation

scholarly journals On the relation between pole and running heavy quark masses beyond the four-loop approximation

2018 ◽  
Vol 191 ◽  
pp. 04005 ◽  
Author(s):  
A. L. Kataev ◽  
V. S. Molokoedov
Keyword(s):  
Heavy Quark ◽  
Perturbative Qcd ◽  
Mass Relation ◽  
Coupling Constant ◽  
Quark Masses ◽  
Asymptotic Nature ◽  
Asymptotic Expressions ◽  
Loop Approximation ◽  
Euclidean Region ◽  
Direct Calculations

The effective charges motivated method is applied to the relation between pole and M̅S̅-scheme heavy quark masses to study high order perturbative QCD corrections in the observable quantities proportional to the running quark masses. The non-calculated five- and six-loop perturbative QCD coefficients are estimated. This approach predicts for these terms the sign-alternating expansion in powers of number of lighter flavors nl, while the analyzed recently infrared renormalon asymptotic expressions do not reproduce the same behavior. We emphasize that coefficients of the quark mass relation contain proportional to π2 effects, which result from analytical continuation from the Euclidean region, where the scales of the running masses and QCD coupling constant are initially fixed, to the Minkowskian region, where the pole masses and the running QCD parameters are determined. For the t-quark the asymptotic nature of the non-resummed PT mass relation does not manifest itself at six-loops, while for the b-quark the minimal PT term appears at the probed by direct calculations four-loop level. The recent infrared renormalon based studies support these conclusions.

scholarly journals Heavy Quark Masses (from QCD Sum Rules) and their impact on the muon g-2

2021 ◽  
Author(s):  
Pere Masjuan ◽  
Jens Paul Arthur Erler ◽  
Hubert Spiesberger
Keyword(s):  
Heavy Quark ◽  
Sum Rules ◽  
Qcd Sum Rules ◽  
Quark Masses

scholarly journals Erratum to: On the relation between pole and running heavy quark masses beyond the four-loop approximation

2018 ◽  
Vol 191 ◽  
pp. 04013
Author(s):  
A. L. Kataev ◽  
V. S. Molokoedov
Keyword(s):  
Heavy Quark ◽  
Full Text ◽  
Quark Masses ◽  
Loop Approximation

Citations in the original article are corrupted due to error made by Editors QUARKS-2018. See the Full text with correct citations in PDF file.

Baryon sum rules in the heavy quark effective theory

1993 ◽  
Vol 301 (2-3) ◽  
pp. 243-248 ◽  
Author(s):  
E. Bagan ◽  
M. Chabab ◽  
H.G. Dosch ◽  
S. Narison
Keyword(s):  
Heavy Quark ◽  
Sum Rules ◽  
Effective Theory ◽  
Heavy Quark Effective Theory

scholarly journals Up- and down-quark masses from finite-energy QCD sum rules to five loops

2009 ◽  
Vol 79 (1) ◽  
Author(s):  
C. A. Dominguez ◽  
N. F. Nasrallah ◽  
R. H. Röntsch ◽  
K. Schilcher
Keyword(s):  
Sum Rules ◽  
Finite Energy ◽  
Qcd Sum Rules ◽  
Quark Masses ◽  
Down Quark

scholarly journals SUM RULES IN THE HEAVY QUARK LIMIT OF QCD AND ISGUR-WISE FUNCTIONS

2005 ◽  
Author(s):  
F. JUGEAU ◽  
A. LE YAOUANC ◽  
L. OLIVER ◽  
J.-C. RAYNAL
Keyword(s):  
Heavy Quark ◽  
Sum Rules ◽  
Heavy Quark Limit

scholarly journals New contributions to heavy quark sum rules

2002 ◽  
Vol 24 (3) ◽  
pp. 439-446 ◽  
Author(s):  
J. Portolés ◽  
P.D. Ruiz-Femenía
Keyword(s):  
Heavy Quark ◽  
Sum Rules

scholarly journals Up- and down-quark masses from QCD sum rules

2019 ◽  
Vol 2019 (2) ◽  
Author(s):  
C. A. Dominguez ◽  
A. Mes ◽  
K. Schilcher
Keyword(s):  
Sum Rules ◽  
Qcd Sum Rules ◽  
Quark Masses ◽  
Down Quark
Sign in / Sign up

Export Citation Format

Share Document