Chiral anomaly in soft collinear effective theory
Name
Waalewijn-2009-Chiral anomaly in so.pdf
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368.4 KB
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Adobe PDF
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Author(s)
Waalewijn, Wouter Jonathan
Date Issued
February 2009
Journal
Physical Review D
Publisher
American Physical Society
Citation
Waalewijn, Wouter J. “Chiral anomaly in soft collinear effective theory.” Physical Review D 79.3 (2009): 036003. (C) 2010 The American Physical Society.
Version
Final published version
Abstract
Anomalies have infrared and ultraviolet ingredients, and are often realized in effective theories in a nontrivial way. We study the chiral anomaly in soft collinear effective theory (SCET), where the anomaly equation has terms contributing at different orders in the power expansion. The chiral anomaly equations in SCET are computed up to next-to-next-to-leading order in the power counting with external collinear and/or ultrasoft gluons. We do this by expanding the QCD anomaly equation, using the tree level (leading order in αs) relations between QCD and SCET fields. The validity of this correspondence between the anomaly equations is confirmed by direct computation of the one-loop diagrams in SCET.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevD.79.036003
