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Associated Production Of A Top Pair And A W Boson At Next-To-Next-To-Leading Logarithmic Accuracy, Alessandro Broggio, Andrea Ferroglia, Giovanni Ossola, Ben D. Pecjak
Associated Production Of A Top Pair And A W Boson At Next-To-Next-To-Leading Logarithmic Accuracy, Alessandro Broggio, Andrea Ferroglia, Giovanni Ossola, Ben D. Pecjak
Publications and Research
We consider soft gluon emission corrections to the production of a top-antitop pair in association with a W boson at the Large Hadron Collider. We obtain a soft-gluon resummation formula for this production process which is valid up to next-to-next-to-leading logarithmic accuracy. We evaluate the soft gluon resummation formula in Mellin space by means of an in-house parton level Monte Carlo code which allows us to obtain predictions for the total cross section as well as for several differential distributions. We study the impact of the soft-gluon resummation corrections in comparison to fixed order calculations.
Associated Production Of A Top Pair And A Higgs Boson Beyond Nlo, Alessandro Broggio, Andrea Ferroglia, Ben D. Pecjak, Adrian Signer, Li Lin Yang
Associated Production Of A Top Pair And A Higgs Boson Beyond Nlo, Alessandro Broggio, Andrea Ferroglia, Ben D. Pecjak, Adrian Signer, Li Lin Yang
Publications and Research
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 softgluon 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 …