Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP05(2015)090
Keywords
Monte Carlo Simulations; NLO Computations
Categories
Funding
- Hungarian Scientific Research Fund [K-101482]
- European Union
- European Social Fund through Supercomputer project
- national virtual lab project [TAMOP-4.2.2.C-11/1/KONV-2012-0010]
- LHCPhenoNet network project [PITN-GA-2010-264564]
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We simulate the hadroproduction of a t (t) over bar -pair in association with a hard photon at LHC using the PowHel package. These events are almost fully inclusive with respect to the photon, allowing for any physically relevant isolation of the photon. 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 and we compare these to existing predictions accurate at NLO using the smooth isolation prescription of Frixione. Our fixed-order predictions include the direct-photon contribution only. We also make predictions for distributions after full parton shower and hadronization using the standard experimental cone-isolation of the photon.
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