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Title: Next-to-leading-logarithmic power corrections for N -jettiness subtraction in color-singlet production

Abstract

We present a detailed derivation of the power corrections to the factorization theorem for the 0-jettiness event shape variable T. Our calculation is performed directly in QCD without using the formalism of effective field theory. We analytically calculate the next-to-leading logarithmic power corrections for small T at next-to-leading order in the strong coupling constant, extending previous computations which obtained only the leading-logarithmic power corrections. We address a discrepancy in the literature between results for the leading-logarithmic power corrections to a particular definition of 0-jettiness. We present a numerical study of the power corrections in the context of their application to the N-jettiness subtraction method for higher-order calculations, using gluon-fusion Higgs production as an example. The inclusion of the next-to-leading-logarithmic power corrections further improves the numerical efficiency of the approach beyond the improvement obtained from the leading-logarithmic power corrections.

Authors:
; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1471379
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

Citation Formats

Boughezal, Radja, Isgrò, Andrea, and Petriello, Frank. Next-to-leading-logarithmic power corrections for N -jettiness subtraction in color-singlet production. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.97.076006.
Boughezal, Radja, Isgrò, Andrea, & Petriello, Frank. Next-to-leading-logarithmic power corrections for N -jettiness subtraction in color-singlet production. United States. doi:10.1103/PhysRevD.97.076006.
Boughezal, Radja, Isgrò, Andrea, and Petriello, Frank. Sun . "Next-to-leading-logarithmic power corrections for N -jettiness subtraction in color-singlet production". United States. doi:10.1103/PhysRevD.97.076006.
@article{osti_1471379,
title = {Next-to-leading-logarithmic power corrections for N -jettiness subtraction in color-singlet production},
author = {Boughezal, Radja and Isgrò, Andrea and Petriello, Frank},
abstractNote = {We present a detailed derivation of the power corrections to the factorization theorem for the 0-jettiness event shape variable T. Our calculation is performed directly in QCD without using the formalism of effective field theory. We analytically calculate the next-to-leading logarithmic power corrections for small T at next-to-leading order in the strong coupling constant, extending previous computations which obtained only the leading-logarithmic power corrections. We address a discrepancy in the literature between results for the leading-logarithmic power corrections to a particular definition of 0-jettiness. We present a numerical study of the power corrections in the context of their application to the N-jettiness subtraction method for higher-order calculations, using gluon-fusion Higgs production as an example. The inclusion of the next-to-leading-logarithmic power corrections further improves the numerical efficiency of the approach beyond the improvement obtained from the leading-logarithmic power corrections.},
doi = {10.1103/PhysRevD.97.076006},
journal = {Physical Review D},
issn = {2470-0010},
number = 7,
volume = 97,
place = {United States},
year = {2018},
month = {4}
}