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Associated production of a top pair and a Higgs boson beyond NLO.

Broggio, Alessandro and Ferroglia, Andrea and Pecjak, Ben D. and Signer, Adrian and Yang, Li Lin (2016) 'Associated production of a top pair and a Higgs boson beyond NLO.', Journal of high energy physics., 2016 (3). p. 124.

Abstract

We consider soft gluon emission corrections to the production of a top-antitop pair in association with a Higgs boson at hadron colliders. In particular, we present a soft-gluon resummation formula for this production process and gather all elements needed to evaluate it at next-to-next-to-leading logarithmic order. We employ these results to obtain approximate next-to-next-to-leading order (NNLO) formulas, and implement them in a bespoke parton-level Monte Carlo program which can be used to calculate the total cross section along with arbitrary differential distributions. We use this tool to study the phenomenological impact of the approximate NNLO corrections, finding that they increase the total cross section and the differential distributions which we evaluated in this work.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1007/JHEP03(2016)124
Publisher statement:Open Access, © The Authors. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Date accepted:02 March 2016
Date deposited:22 April 2016
Date of first online publication:17 March 2016
Date first made open access:22 April 2016

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