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相关论文: Top-pair production and decay at NLO matched with …

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We study the theoretical uncertainties in the determination of the top-quark mass using next-to-leading-order (NLO) generators, that describe the top-quark decay at different levels of accuracy, interfaced to parton showers (PS).…

高能物理 - 唯象学 · 物理学 2018-08-29 Silvia Ferrario Ravasio , Tomáš Ježo

We present a next-to-leading order calculation of single-top production interfaced to Shower Monte Carlo programs, implemented according to the POWHEG method. A detailed comparison with MC@NLO and PYTHIA is carried out for several…

高能物理 - 唯象学 · 物理学 2010-03-03 Simone Alioli , Paolo Nason , Carlo Oleari , Emanuele Re

The associated production of charged Higgs bosons and top quarks at hadron colliders is an important discovery channel to establish the existence of a non-minimal Higgs sector. Here, we present details of a next-to-leading order (NLO)…

高能物理 - 唯象学 · 物理学 2012-10-19 M. Klasen , K. Kovarik , P. Nason , C. Weydert

We present a next-to-leading-order calculation of W/Z production interfaced to shower Monte Carlo, implemented according to the POWHEG method. Finite width effects, Z/gamma interference and angular correlations of decay products are…

高能物理 - 唯象学 · 物理学 2008-11-26 Simone Alioli , Paolo Nason , Carlo Oleari , Emanuele Re

We present a method, based on the positive weight next-to-leading-order matching formalism (POWHEG), to simulate photon production processes at next-to-leading-order (NLO). This technique is applied to the simulation of diphoton production…

高能物理 - 唯象学 · 物理学 2015-05-28 Luca D'Errico , Peter Richardson

We present a new Monte Carlo event generator for the production of a top-quark pair in association with a $W^\pm$ boson at hadron colliders in the POWHEG-BOX framework. We consider the next-to-leading-order QCD corrections to the $pp\to…

高能物理 - 唯象学 · 物理学 2021-05-19 F. Febres Cordero , M. Kraus , L. Reina

We present an implementation of the next-to-leading order dijet production process in hadronic collisions in the framework of POWHEG, which is a method to implement NLO calculations within a shower Monte Carlo context. In constructing the…

高能物理 - 唯象学 · 物理学 2015-05-20 Simone Alioli , Keith Hamilton , Paolo Nason , Carlo Oleari , Emanuele Re

We present an implementation of the next-to-leading order hadronic production of a W boson in association with a pair of massive bottom quarks in the framework of POWHEG, a method to consistently interface NLO QCD calculations with shower…

高能物理 - 唯象学 · 物理学 2015-05-28 Carlo Oleari , Laura Reina

We compute the production cross section of a top-antitop pair in association with a jet at hadron colliders at next-to-leading order accuracy matched with parton shower algorithms to make predictions at the hadron level. The parton shower…

高能物理 - 唯象学 · 物理学 2015-03-17 Adam Kardos , Costas Papadopoulos , Zoltan Trocsanyi

We present a calculation of the next-to-leading order (NLO) QCD corrections to the hadroproduction process $gg\to ZZ \to e^+e^- \mu^+ \mu^-$, matched to the parton shower in the POWHEG framework. We take advantage of the POWHEG BOX tool for…

高能物理 - 唯象学 · 物理学 2017-03-08 Simone Alioli , Fabrizio Caola , Gionata Luisoni , Raul Röntsch

We present a next-to-leading order calculation of Higgs boson production via gluon fusion interfaced to shower Monte Carlo programs, implemented according to the POWHEG method. A detailed comparison with MC@NLO and PYTHIA is carried out for…

高能物理 - 唯象学 · 物理学 2010-01-15 Simone Alioli , Paolo Nason , Carlo Oleari , Emanuele Re

We consider the production of a pair of heavy quarks and illustrate the derivation of the MiNNLO method to match next-to-next-to-leading order calculations with parton showers (NNLO+PS) for this class of processes. As a first application,…

高能物理 - 唯象学 · 物理学 2022-05-04 Javier Mazzitelli , Pier Francesco Monni , Paolo Nason , Emanuele Re , Marius Wiesemann , Giulia Zanderighi

We present a Monte Carlo generator that implements significant theoretical improvements in the simulation of top-quark pair production and decay at the LHC. Spin correlations and off-shell effects in top-decay chains are described in terms…

高能物理 - 唯象学 · 物理学 2017-02-01 Tomáš Ježo , Jonas M. Lindert , Paolo Nason , Carlo Oleari , Stefano Pozzorini

We present an implementation of the calculation of the production of W^+W^+ plus two jets at hadron colliders, at next-to-leading order (NLO) in QCD, in the POWHEG framework, which is a method that allows the interfacing of NLO calculations…

高能物理 - 唯象学 · 物理学 2015-05-27 Tom Melia , Paolo Nason , Raoul Rontsch , Giulia Zanderighi

We present a calculation of the next-to-leading order (NLO) QCD corrections to gluon-induced electroweak gauge boson pair production, $gg \to ZZ$ and $gg \to W^+W^-$, matched to the PYTHIA8 parton shower in the POWHEG approach. The…

高能物理 - 唯象学 · 物理学 2021-08-18 Simone Alioli , Silvia Ferrario Ravasio , Jonas M. Lindert , Raoul Röntsch

The increasingly high accuracy of top-quark studies at the LHC calls for a theoretical description of $t\bar t$ production and decay in terms of exact matrix elements for the full $2\to 6$ process that includes the off-shell production and…

高能物理 - 唯象学 · 物理学 2023-07-31 Tomáš Ježo , Jonas M. Lindert , Stefano Pozzorini

We detail a calculation of W gamma production in hadronic collision, at Next-to-Leading Order (NLO) QCD interfaced to a shower generator according to the POWHEG prescription supplemented with the MiNLO procedure. The fixed order result is…

高能物理 - 唯象学 · 物理学 2015-06-22 Luca Barze , Mauro Chiesa , Guido Montagna , Paolo Nason , Oreste Nicrosini , Fulvio Piccinini , Valeria Prosperi

Extending previous work on the predictions for the production of supersymmetric (SUSY) particles at the LHC, we present the fully differential calculation of the next-to-leading order (NLO) SUSY-QCD corrections to the production of squark…

高能物理 - 唯象学 · 物理学 2015-06-22 Ryan Gavin , Christian Hangst , Michael Krämer , Margarete Mühlleitner , Mathieu Pellen , Eva Popenda , Michael Spira

We present an implementation of electroweak W+W-jj production at hadron colliders in the POWHEG framework, a method that allows the interfacing of a next-to-leading order QCD calculation with parton shower Monte Carlo programs. We provide…

高能物理 - 唯象学 · 物理学 2015-06-12 Barbara Jager , Giulia Zanderighi

We present an implementation of the next-to-leading order vector boson plus one jet production process in hadronic collision in the framework of POWHEG, which is a method to implement NLO calculations within a Shower Monte Carlo context.…

高能物理 - 唯象学 · 物理学 2011-02-01 Simone Alioli , Paolo Nason , Carlo Oleari , Emanuele Re
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