Reparameterization invariance for collinear operators
Publication
, Journal Article
Manohar, AV; Mehen, T; Pirjol, D; Stewart, IW
Published in: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
July 11, 2002
We discuss restrictions on operators in the soft-collinear effective theory (SCET) which follow from the ambiguity in the decomposition of collinear momenta and the freedom in the choice of light-like basis vectors n and n̄. Invariance of SCET under small changes in n and/or n̄ implies a symmetry of the effective theory that constrains the form of allowed operators with collinear fields. The restrictions occur at a given order in the power counting as well as between different orders. As an example, we present the complete set of higher order operators that are related to the collinear quark kinetic term. ©2002 Elsevier Science B.V. All rights reserved.
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Published In
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DOI
ISSN
0370-2693
Publication Date
July 11, 2002
Volume
539
Issue
1-2
Start / End Page
59 / 66
Related Subject Headings
- Nuclear & Particles Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences
- 0105 Mathematical Physics
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Manohar, A. V., Mehen, T., Pirjol, D., & Stewart, I. W. (2002). Reparameterization invariance for collinear operators. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 539(1–2), 59–66. https://doi.org/10.1016/S0370-2693(02)02029-4
Manohar, A. V., T. Mehen, D. Pirjol, and I. W. Stewart. “Reparameterization invariance for collinear operators.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 539, no. 1–2 (July 11, 2002): 59–66. https://doi.org/10.1016/S0370-2693(02)02029-4.
Manohar AV, Mehen T, Pirjol D, Stewart IW. Reparameterization invariance for collinear operators. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2002 Jul 11;539(1–2):59–66.
Manohar, A. V., et al. “Reparameterization invariance for collinear operators.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 539, no. 1–2, July 2002, pp. 59–66. Scopus, doi:10.1016/S0370-2693(02)02029-4.
Manohar AV, Mehen T, Pirjol D, Stewart IW. Reparameterization invariance for collinear operators. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2002 Jul 11;539(1–2):59–66.
Published In
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DOI
ISSN
0370-2693
Publication Date
July 11, 2002
Volume
539
Issue
1-2
Start / End Page
59 / 66
Related Subject Headings
- Nuclear & Particles Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences
- 0105 Mathematical Physics