Two-loop helicity amplitudes for the production of two off-shell electroweak bosons in gluon fusion

Caola, Fabrizio; Henn, Johannes M.; Melnikov, Kirill; Smirnov, Alexander V.; Smirnov, Vladimir A.

Abstract

We compute the part of the two-loop virtual amplitude for the process gg→V1V2→(l1l¯′2)(l2l¯′2)gg→V1V2→(l1l¯2′)(l2l¯2′) , where V 1,2 are arbitrary electroweak gauge bosons, that receives contributions from loops of massless quarks. Invariant masses of electroweak bosons are allowed to be different from each other. Our result provides an important ingredient for improving the description of gluon fusion contribution to the production of four-lepton final states at the LHC.

Citation

Caola, F., Henn, J. M., Melnikov, K., Smirnov, A. V., & Smirnov, V. A. (2015). Two-loop helicity amplitudes for the production of two off-shell electroweak bosons in gluon fusion. Journal of High Energy Physics, 2015(6), Article 129. https://doi.org/10.1007/jhep06%282015%29129

• Journal Article Type: Article
• Acceptance Date: May 22, 2015
• Online Publication Date: Jun 18, 2015
• Publication Date: Jun 18, 2015
• Deposit Date: Nov 24, 2017
• Publicly Available Date: Jan 24, 2018
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Electronic ISSN: 1029-8479
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2015
• Issue: 6
• Article Number: 129
• DOI: https://doi.org/10.1007/jhep06%282015%29129
• Public URL: https://durham-repository.worktribe.com/output/1343679