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https://hdl.handle.net/2440/23560
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Type: | Journal article |
Title: | Running couplings for the simultaneous decoupling of heavy quarks |
Author: | Bass, S. Crewther, R. Steffens, F. Thomas, A. |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2006; 634(2-3):249-254 |
Publisher: | Elsevier Science BV |
Issue Date: | 2006 |
ISSN: | 0370-2693 |
Statement of Responsibility: | Steven D. Bass, R.J. Crewther, F.M. Steffens and A.W. Thomas |
Abstract: | Scale-invariant running couplings are constructed for several quarks being decoupled together, without reference to intermediate thresholds. Large-momentum scales can also be included. The result is a multi-scale generalization of the renormalization group applicable to any order. Inconsistencies in the usual decoupling procedure with a single running coupling can then be avoided, e.g., when cancelling anomalous corrections from t,b quarks to the axial charge of the proton. |
Keywords: | Renormalization group Thresholds Mass logarithms Matching conditions Axial anomaly |
Rights: | © 2006 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.physletb.2006.01.064 |
Description (link): | http://www.elsevier.com/wps/find/journaldescription.cws_home/505706/description#description |
Published version: | http://dx.doi.org/10.1016/j.physletb.2006.01.064 |
Appears in Collections: | Aurora harvest 6 Physics publications |
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