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Related papers: MINLO t-channel single-top plus jet

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We reframe common tasks in jet physics in probabilistic terms, including jet reconstruction, Monte Carlo tuning, matrix element - parton shower matching for large jet multiplicity, and efficient event generation of jets in complex,…

High Energy Physics - Phenomenology · Physics 2021-09-08 Kyle Cranmer , Matthew Drnevich , Sebastian Macaluso , Duccio Pappadopulo

We present the predictions at next-to-leading order (NLO) in the strong coupling for the single-top cross section in the t channel at the Tevatron and the LHC. Our calculation starts from the 2 -> 3 Born amplitude g q -> t bbar q', keeping…

High Energy Physics - Phenomenology · Physics 2009-06-30 John M. Campbell , Rikkert Frederix , Fabio Maltoni , Francesco Tramontano

We present an analysis of the forward-backward asymmetry in the production of top quark pairs at the Tevatron collider. We use novel Monte Carlo methods for merging matrix elements and parton showers to combine NLO QCD predictions for tt…

High Energy Physics - Phenomenology · Physics 2013-08-09 Stefan Hoeche , Junwu Huang , Gionata Luisoni , Marek Schoenherr , Jan Winter

We discuss the GENEVA Monte Carlo framework, which combines higher-order resummation (NNLL) of large Sudakov logarithms with multiple next-to-leading-order (NLO) matrix-element corrections and parton showering (using PYTHIA8) to give a…

The MC@NLO method as implemented in the Sherpa MC generator is presented using the production of W-bosons in conjunction with up to three jets as an example. Corresponding results computed at next-to leading order in QCD and including…

High Energy Physics - Phenomenology · Physics 2012-06-22 Frank Siegert , Stefan Hoeche , Frank Krauss , Marek Schonherr

In this article we present an event generator based on the Monte Carlo program Powheg in combination with the matrix-element generator Recola. We apply it to compute NLO electroweak corrections to same-sign W-boson scattering, which have…

High Energy Physics - Phenomenology · Physics 2020-02-19 Mauro Chiesa , Ansgar Denner , Jean-Nicolas Lang , Mathieu Pellen

Matched calculations combining perturbative QCD with parton showers are an indispensable tool for LHC physics. Two methods for NLO matching are in widespread use: MC@NLO and POWHEG. We describe an alternative, KrkNLO, reformulated to be…

High Energy Physics - Phenomenology · Physics 2025-02-03 Pratixan Sarmah , Andrzej Siódmok , James Whitehead

We present the calculation of the Wt single-top production channel to next-to-leading order in QCD, interfaced with parton showers within the MC@NLO formalism. This channel provides a complementary way of investigating the properties of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Frixione , E. Laenen , P. Motylinski , B. Webber , C. D. White

We simulate the hadroproduction of a top-antitop pair in association with a bottom-antibottom pair at 14 TeV LHC using the PowHel package. We use the generated events, stored according to the Les-Houches event format, to make predictions…

High Energy Physics - Phenomenology · Physics 2015-06-15 Adam Kardos , Zoltán Trócsányi

We apply the MC@NLO approach to the process of heavy flavour hadroproduction. MC@NLO is a method for matching next-to-leading order (NLO) QCD calculations and parton shower Monte Carlo (MC) simulations, with the following features: fully…

High Energy Physics - Phenomenology · Physics 2009-11-10 S. Frixione , P. Nason , B. R. Webber

I present approximate next-to-next-to-leading-order (aNNLO) transverse-momentum ($p_T$) distributions in single-top production processes. The aNNLO results are derived from next-to-next-to-leading-logarithm (NNLL) resummation of soft-gluon…

High Energy Physics - Phenomenology · Physics 2016-03-23 Nikolaos Kidonakis

An algorithm is presented that combines the ME+PS approach to merge sequences of tree-level matrix elements into inclusive event samples with the POWHEG method, which combines exact next-to-leading order matrix elements with parton showers.…

High Energy Physics - Phenomenology · Physics 2010-09-09 Stefan Hoeche , Frank Krauss , Marek Schonherr , Frank Siegert

I describe MiNNLO$_{\rm PS}$, a novel method to match NNLO QCD computations with Parton Showers, and present a selection of results for color-singlet production at the LHC.

High Energy Physics - Phenomenology · Physics 2021-07-15 Emanuele Re

We present an NLO simulation of WWbb production with massive b-quarks at the LHC. Off-shell and non-resonant contributions associated with top-pair and single-top channels and with leptonic W-boson decays are consistently taken into account…

High Energy Physics - Phenomenology · Physics 2015-06-18 F. Cascioli , S. Kallweit , P. Maierhöfer , S. Pozzorini

We present a new Monte Carlo event generator for the hadronic production of four top quarks in the POWHEG BOX framework. Besides the dominant next-to-leading order QCD corrections at $\mathcal{O}(\alpha_s^5)$ we also include all subleading…

High Energy Physics - Phenomenology · Physics 2022-07-06 Tomáš Ježo , Manfred Kraus

We introduce a method for matching the neutral-current deep inelastic scattering process with parton showers at first order in the strong coupling. This multiplicative matching is achieved by reweighting leading-order Born-level events and…

High Energy Physics - Phenomenology · Physics 2026-05-13 Ilkka Helenius , Joni O. Laulainen , Christian T. Preuss

We present a NNLO QCD accurate event generator for direct photon pair production at hadron colliders, based on the MiNNLOPS formalism, within the POWHEG BOX RES framework. Despite the presence of the photons requires the use of isolation…

High Energy Physics - Phenomenology · Physics 2022-09-28 Alessandro Gavardi , Carlo Oleari , Emanuele Re

Single top-quark production offers a unique laboratory for precision tests of the Standard Model and searches of possible extensions. Furthermore, assuming the Standard Model, single top-quark production can be used to determine top-quark…

High Energy Physics - Phenomenology · Physics 2018-01-15 Till Martini , Peter Uwer

We present a phenomenological study of angularities measured on the highest transverse-momentum jet in LHC events that feature the associate production of a $Z$ boson and one or more jets. In particular, we study angularity distributions…

High Energy Physics - Phenomenology · Physics 2021-07-15 Simone Caletti , Oleh Fedkevych , Simone Marzani , Daniel Reichelt , Steffen Schumann , Gregory Soyez , Vincent Theeuwes

In this paper we study the theoretical uncertainties in the determination of the top-quark mass using next-to-leading-order (NLO) generators interfaced to parton showers (PS) that have different levels of accuracy. Specifically we consider…

High Energy Physics - Phenomenology · Physics 2018-07-04 Silvia Ferrario Ravasio , Tomas Jezo , Paolo Nason , Carlo Oleari
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