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Title: The NNLO QCD soft function for 1-jettiness

Abstract

We calculate the soft function for the global event variable 1-jettiness at next-to-next-to-leading order (NNLO) in QCD. We focus specifically on the non-Abelian contribution, which, unlike the Abelian part, is not determined by the next-to-leading order result. The calculation uses the known general forms for the emission of one and two soft partons and is performed using a sector-decomposition method that is spelled out in detail. Results are presented in the form of numerical fits to the 1-jettiness soft function for LHC kinematics (as a function of the angle between the incoming beams and the final-state jet) and for generic kinematics (as a function of three independent angles). These fits represent one of the needed ingredients for NNLO calculations that use the N-jettiness event variable to handle infrared singularities.

Authors:
; ; ORCiD logo;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1426829
Alternate Identifier(s):
OSTI ID: 1423229
Report Number(s):
IPPP-17-76; FERMILAB-PUB-17-493-T; arXiv:1711.09984
Journal ID: ISSN 1434-6044; 234; PII: 5732
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Published Article
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Name: European Physical Journal. C, Particles and Fields Journal Volume: 78 Journal Issue: 3; Journal ID: ISSN 1434-6044
Publisher:
Springer Science + Business Media
Country of Publication:
Germany
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Campbell, John M., Ellis, R. Keith, Mondini, Roberto, and Williams, Ciaran. The NNLO QCD soft function for 1-jettiness. Germany: N. p., 2018. Web. doi:10.1140/epjc/s10052-018-5732-1.
Campbell, John M., Ellis, R. Keith, Mondini, Roberto, & Williams, Ciaran. The NNLO QCD soft function for 1-jettiness. Germany. doi:10.1140/epjc/s10052-018-5732-1.
Campbell, John M., Ellis, R. Keith, Mondini, Roberto, and Williams, Ciaran. Mon . "The NNLO QCD soft function for 1-jettiness". Germany. doi:10.1140/epjc/s10052-018-5732-1.
@article{osti_1426829,
title = {The NNLO QCD soft function for 1-jettiness},
author = {Campbell, John M. and Ellis, R. Keith and Mondini, Roberto and Williams, Ciaran},
abstractNote = {We calculate the soft function for the global event variable 1-jettiness at next-to-next-to-leading order (NNLO) in QCD. We focus specifically on the non-Abelian contribution, which, unlike the Abelian part, is not determined by the next-to-leading order result. The calculation uses the known general forms for the emission of one and two soft partons and is performed using a sector-decomposition method that is spelled out in detail. Results are presented in the form of numerical fits to the 1-jettiness soft function for LHC kinematics (as a function of the angle between the incoming beams and the final-state jet) and for generic kinematics (as a function of three independent angles). These fits represent one of the needed ingredients for NNLO calculations that use the N-jettiness event variable to handle infrared singularities.},
doi = {10.1140/epjc/s10052-018-5732-1},
journal = {European Physical Journal. C, Particles and Fields},
number = 3,
volume = 78,
place = {Germany},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1140/epjc/s10052-018-5732-1

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Cited by: 3 works
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