Two-loop helicity amplitudes for the production of two off-shell electroweak bosons in quark-antiquark collisions

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

Abstract

Knowledge of two-loop QCD amplitudes for processes qq′→V1V2→(l1l¯′1)(l2l¯′2)qq′→V1V2→(l1l¯1′)(l2l¯2′) is important for improving the theoretical description of four-lepton production in hadron collisions. In this paper we compute these helicity amplitudes for all intermediate vector bosons, V 1 V 2 = γ * γ *, W + W −, ZZ, W ± Z, W ± γ *, including off-shell effects and decays to leptons.

Citation

Caola, F., Henn, J. M., Melnikov, K., Smirnov, A. V., & Smirnov, V. A. (2014). Two-loop helicity amplitudes for the production of two off-shell electroweak bosons in quark-antiquark collisions. Journal of High Energy Physics, 2014(11), Article 041. https://doi.org/10.1007/jhep11%282014%29041

• Journal Article Type: Article
• Acceptance Date: Oct 26, 2014
• Online Publication Date: Nov 10, 2014
• Publication Date: Nov 10, 2014
• 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: 2014
• Issue: 11
• Article Number: 041
• DOI: https://doi.org/10.1007/jhep11%282014%29041
• Public URL: https://durham-repository.worktribe.com/output/1343309