Generic dijet soft functions at two-loop order: uncorrelated emissions

Bell, Guido; Rahn, Rudi; Talbert, Jim

doi:10.1007/JHEP09(2020)015

Journal Article

PUBDB-2020-03812

Generic dijet soft functions at two-loop order: uncorrelated emissions

Bell, G. ; Rahn, R. ; Talbert, J. (Corresponding author)DESY*

2020
SISSA [Trieste]

Journal of high energy physics 2020(9), 15 (1-28) (2020) [10.1007/JHEP09(2020)015]

This record in other databases:

Please use a persistent id in citations: doi:10.1007/JHEP09(2020)015 doi:10.3204/PUBDB-2020-03812

Report No.: DESY-19-157; Nikhef 2020-007; QFET-2020-01; SI-HEP-2020-11; arXiv:2004.08396

Abstract: We extend our algorithm for automating the calculation of two-loop dijet soft functions to observables that do not obey the non-Abelian exponentiation theorem, i.e. to those that require an independent calculation of the uncorrelated-emission contribution. As the singularity structure of uncorrelated double emissions differs substantially from the one for correlated emissions, we introduce a novel phase-space parametrisation that isolates the corresponding divergences. The resulting integrals are implemented in SoftSERVE 1.0, which we release alongside of this work, and which we supplement by a regulator that is consistent with the rapidity renormalisation group framework. Using our automated setup, we confirm existing results for various jet-veto observables and provide a novel prediction for the soft-drop jet-grooming algorithm.

Keyword(s): phase space: parametrization ; dijet ; renormalization group ; singularity ; nonabelian ; structure ; rapidity

Classification:

ddc:530

Note: 28 pages, 5 figures

Contributing Institute(s):

Theorie-Gruppe (T)

Research Program(s):

611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

No specific instrument

Appears in the scientific report 2020

Database coverage:
Creative Commons Attribution CC BY 4.0

;

;

;

; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz