Running couplings for the simultaneous decoupling of heavy quarks
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
09/03/2006
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Resumo |
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. (c) 2006 Elsevier B.V. All rights reserved. |
Formato |
249-254 |
Identificador |
http://dx.doi.org/10.1016/j.physletb.2006.01.064 Physics Letters B. Amsterdam: Elsevier B.V., v. 634, n. 2-3, p. 249-254, 2006. 0370-2693 http://hdl.handle.net/11449/23552 10.1016/j.physletb.2006.01.064 WOS:000235859800027 |
Idioma(s) |
eng |
Publicador |
Elsevier B.V. |
Relação |
Physics Letters B |
Direitos |
closedAccess |
Palavras-Chave | #renormalization group #thresholds #mass logarithms #matching conditions #axial anomaly |
Tipo |
info:eu-repo/semantics/article |