Two-loop leading colour helicity amplitudes for W±γ + j production at the LHC-Reference-Cited by-同舟云学术

Two-loop leading colour helicity amplitudes for W±γ + j production at the LHC

Published:2022-05-05 Issue:5 Volume:2022 Page:
ISSN:1029-8479
Container-title:Journal of High Energy Physics
language:en
Short-container-title:J. High Energ. Phys.

Author:

Badger Simon,Hartanto Heribertus Bayu^ORCID,Kryś Jakub,Zoia Simone^ORCID

Abstract

Abstract We present the two-loop leading colour QCD helicity amplitudes for the process pp → W (→ lν)γ + j. We implement a complete reduction of the amplitudes, including the leptonic decay of the W-boson, using finite field arithmetic, and extract the analytic finite remainders using a recently identified basis of special functions. Simplified analytic expressions are obtained after considering permutations of a rational kinematic parametrisation and multivariate partial fractioning. We demonstrate efficient numerical evaluation of the two-loop colour and helicity summed finite remainders for physical kinematics, and hence the suitability for phenomenological applications.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Link

https://link.springer.com/content/pdf/10.1007/JHEP05(2022)035.pdf

Reference84 articles.

1. CMS collaboration, Measurement of Wγ and Zγ production in pp collisions at $$ \sqrt{s} $$ = 7 TeV, Phys. Lett. B 701 (2011) 535 [arXiv:1105.2758] [INSPIRE].

2. ATLAS collaboration, Measurement of Wγ and Zγ production in proton-proton collisions at $$ \sqrt{s} $$ = 7 TeV with the ATLAS detector, JHEP 09 (2011) 072 [arXiv:1106.1592] [INSPIRE].

3. ATLAS collaboration, Measurement of Wγ and Zγ production cross sections in pp collisions at $$ \sqrt{s} $$ = 7 TeV and limits on anomalous triple gauge couplings with the ATLAS detector, Phys. Lett. B 717 (2012) 49 [arXiv:1205.2531] [INSPIRE].

4. ATLAS collaboration, Measurements of Wγ and Zγ production in pp collisions at $$ \sqrt{s} $$ = 7 TeV with the ATLAS detector at the LHC, Phys. Rev. D 87 (2013) 112003 [Erratum ibid. 91 (2015) 119901] [arXiv:1302.1283] [INSPIRE].

5. CMS collaboration, Measurement of the Wγ and Zγ inclusive cross sections in pp collisions at $$ \sqrt{s} $$ = 7 TeV and limits on anomalous triple gauge boson couplings, Phys. Rev. D 89 (2014) 092005 [arXiv:1308.6832] [INSPIRE].

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