NNLL resummation for the associated production of a top pair and a Higgs boson at the LHC

Autor:	Broggio, A, Ferroglia, A, Pecjak, BD, Yang, LL
Přispěvatelé:	Broggio, A, Ferroglia, A, Pecjak, B, Yang, L
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	High Energy Physics - Phenomenology Nuclear and High Energy Physics High Energy Physics - Phenomenology (hep-ph) High Energy Physics::Phenomenology NLO Computation FOS: Physical sciences High Energy Physics::Experiment QCD Phenomenology Nuclear Experiment
Zdroj:	Journal of High Energy Physics Journal of high energy physics, 2017, Vol.2017(2), pp.126 [Peer Reviewed Journal]
Popis:	We study the resummation of soft gluon emission corrections to the production of a top-antitop pair in association with a Higgs boson at the Large Hadron Collider. Starting from a soft-gluon resummation formula derived in previous work, we develop a bespoke parton-level Monte Carlo program which can be used to calculate the total cross section along with differential distributions. We use this tool to study the phenomenological impact of the resummation to next-to-next-to-leading logarithmic (NNLL) accuracy, finding that these corrections increase the total cross section and the differential distributions with respect to NLO calculations of the same observables. Comment: 26 pages, 9 figures. A few typos and an incorrect reference were fixed
Databáze:	OpenAIRE
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