Heavy charged Higgs boson production at the LHC

Degrande, Céline; Ubiali, Maria; Wiesemann, Marius; Zaro, Marco

Abstract

In this paper we study the production of a heavy charged Higgs boson in association with heavy quarks at the LHC in the two-Higgs-doublet model. We present for the first time fully-differential results obtained in the four-flavour scheme at NLO accuracy, both at fixed order and including the matching with parton showers. Relevant differential distributions are studied for two values of the charged boson mass and a thorough comparison is performed between predictions obtained in the four- and five-flavour schemes. We show that the agreement between the two schemes is improved by NLO(+PS) corrections for observables inclusive in the degrees of freedom of bottom quarks. We argue that the four-flavour scheme leads to more reliable predictions, thanks to its accurate description of the bottom-quark kinematics and its small dependence on the Monte Carlos, which in turn is rather large in the five-flavour scheme. A detailed set of recommendations for the simulation of this process in experimental analyses at the LHC is provided.

Citation

Degrande, C., Ubiali, M., Wiesemann, M., & Zaro, M. (2015). Heavy charged Higgs boson production at the LHC. Journal of High Energy Physics, 2015(10), Article 145. https://doi.org/10.1007/jhep10%282015%29145

• Journal Article Type: Article
• Acceptance Date: Sep 21, 2015
• Online Publication Date: Oct 22, 2015
• Publication Date: Oct 31, 2015
• Deposit Date: Apr 24, 2019
• Publicly Available Date: Apr 24, 2019
• 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: 10
• Article Number: 145
• DOI: https://doi.org/10.1007/jhep10%282015%29145
• Public URL: https://durham-repository.worktribe.com/output/1303218