Journal ArticleDOI
Renormalization of the axial anomaly operators
Domenec Espriu,Rolf Tarrach +1 more
TLDR
In this paper, the renormalization of the three pseudoscalar gauge invariant operators which appear in the Adler-Bell-Jackiw anomaly is studied in the back ground field gauge, where it is simplest.Abstract:
The renormalization of the three pseudoscalar gauge invariant operators which appear in the Adler-Bell-Jackiw anomaly is studied in the back-ground field gauge, where it is simplest. We analyse questions concerning renormalization-group invariance, mixing, the γ5-perscription inD dimensions, as well as the meaning of the nonrenormalization of the axial anomaly in the context of the renormalization of composite operators.read more
Citations
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Colloidal gels: equilibrium and non-equilibrium routes
TL;DR: In this article, a classification of different colloidal gels based on colloid colloid interactions is presented, and the authors discriminate primarily between non-equilibrium and equilibrium routes to gelation, the former being slaved to thermodynamic phase separation while the latter is individuated in the framework of competing interactions and of patchy colloids.
Journal ArticleDOI
The Renormalization of the axial anomaly in dimensional regularization
TL;DR: In this article, the prescription for the γ5 matrix within dimensional regularization in multiloop calculations is elaborated and the three-loop anomalous dimension of the singlet axial current is calculated.
Journal ArticleDOI
Longitudinal short-distance constraints for the hadronic light-by-light contribution to (g − 2)μ with large-Nc Regge models
Gilberto Colangelo,Franziska Hagelstein,Martin Hoferichter,Martin Hoferichter,Laetitia Laub,Peter Stoffer +5 more
TL;DR: In this paper, the authors considered a tower of excited pseudoscalars, constraining their masses and transition form factors from Regge theory, the OPE, and phenomenology.
The renormalization of the axial anomaly in dimensional regularization
TL;DR: In this article, the prescription for the γ5 matrix within dimensional regularization in multiloop calculations is elaborated and the three-loop anomalous dimension of the singlet axial current is calculated.
Journal ArticleDOI
Masses, decays and mixings of gluonia in QCD
TL;DR: In this paper, the masses and decay widths of the gluonia using QCD spectral sum rules and low energy theorems were derived for the scalar and tensor sectors.
References
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