Hadroproduction of t-anti-t pair with two isolated photons with PowHel

Kardos, Ádám and Trócsányi, Zoltán (2015) Hadroproduction of t-anti-t pair with two isolated photons with PowHel. NUCLEAR PHYSICS B, 897. pp. 717-731. ISSN 0550-3213

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Abstract

We simulate the hadroproduction of a t¯t pair in association with two isolated hard photons at 13 TeV LHC using the PowHel package. We use the generated events, stored according to the Les-Houches event format, to make predictions for differential distributions formally at the next-to-leading order (NLO) accuracy. We present predictions at the hadron level employing the cone-type isolation of the photons used by experiments. We also compare the kinematic distributions to the same distributions obtained in the t¯tH final state when the Higgs-boson decays into a photon pair, to which the process discussed here is an irreducible background.

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