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Related papers: Top Physics in WHIZARD

200 papers

Top-antitop quark pairs belong to the most abundantly produced and precisely measurable heavy-particle signatures at hadron colliders and allow for crucial tests of the Standard Model and new-physics searches. Here we report on the…

High Energy Physics - Phenomenology · Physics 2011-06-22 A. Denner , S. Dittmaier , S. Kallweit , S. Pozzorini

A search for new physics in top quark production with additional final-state leptons is performed using data collected by the CMS experiment in proton-proton collisions at $\sqrt{s}$ = 13 TeV at the LHC during 2016-2018. The data set…

High Energy Physics - Experiment · Physics 2024-01-04 CMS Collaboration

With a high instantaneous luminosity and the large top quark pair production cross section, the Large Hadron Collider (LHC) will be a "top factory" allowing the analysis of millions of top events. After a short description of the top quark…

High Energy Physics - Experiment · Physics 2007-05-23 Florian Beaudette

(Report of the Top Physics working group at the 1996 DPF/DPB Snowmass workshop, to appear in the proceedings). We discuss the study of the top quark at future experiments and machines. Top's large mass makes it a unique probe of physics at…

High Energy Physics - Phenomenology · Physics 2009-02-20 Raymond Frey , David Gerdes , John Jaros , Steve Vejcik

We use top quark pair production as a probe of top-philic non-resonant new physics. Following a low energy effective field theory approach, we calculate several key observables in top quark pair production at hadron colliders (e.g., total…

High Energy Physics - Phenomenology · Physics 2015-03-17 Céline Degrande , Jean-Marc Gérard , Christophe Grojean , Fabio Maltoni , Géraldine Servant

We compute theoretical predictions for the production of a W-boson in association with a bottom-quark pair at hadron colliders at next-to-next-to-leading order (NNLO) in QCD, including the leptonic decay of the W-boson, while treating the…

High Energy Physics - Phenomenology · Physics 2022-05-17 Heribertus Bayu Hartanto , Rene Poncelet , Andrei Popescu , Simone Zoia

We describe recent additions to the WHIZARD 2 Monte-Carlo event generator which improve the physics description of lepton-collider event samples and speed up the calculation time required for cross sections and event generation.

High Energy Physics - Phenomenology · Physics 2018-01-25 W. Kilian , S. Brass , T. Ohl , J. Reuter , V. Rothe , P. Stienemeier , M. Utsch

We present results at NLO QCD for hadronic production and decay of top quark pairs, taking into account t tbar spin correlations.

High Energy Physics - Phenomenology · Physics 2009-11-07 W. Bernreuther , A. Brandenburg , Z. G. Si , P. Uwer

We study the sensitivity to physics beyond the standard model of precise top-quark pair production measurements at future lepton colliders. A global effective-field-theory approach is employed, including all dimension-six operators of the…

High Energy Physics - Phenomenology · Physics 2018-11-14 Gauthier Durieux , Martín Perelló , Marcel Vos , Cen Zhang

The aim of this thesis is the completion of the NLO automated framework of the MC program WHIZARD, accounting for NLO corrections in the full SM for cross sections and distributions of processes at hadron and lepton colliders. Specifically,…

High Energy Physics - Phenomenology · Physics 2023-01-05 Pia Mareen Bredt

NNLO QCD corrections to the production and decay of top-quark pairs allow performing precision phenomenology in inclusive and fiducial phase spaces. State-of-the-art predictions for top-quark pair production and their comparison to recent…

High Energy Physics - Phenomenology · Physics 2022-12-13 Rene Poncelet

During the 2010 CERN Large Hadron Collider operation at $\sqrt{s}$ = 7 TeV, 35 pb$^{-1}$ of high $p_T$ triggers has been collected by the ATLAS detector. This corresponds to the production of approximately $\number 2500$ top-quark pair…

High Energy Physics - Experiment · Physics 2011-07-15 Helsens Clement

The collider experiments at the Tevatron and the LHC will allow for detailed investigations of the properties of the top quark. This requires precise predictions of the hadronic production of $t\bar t$ pairs and of their subsequent decays.…

High Energy Physics - Phenomenology · Physics 2009-11-07 W. Bernreuther , A. Brandenburg , Z. G. Si , P. Uwer

We describe predictions for top-quark pair differential distributions at hadron colliders, which combine state-of-the-art NNLO QCD calculations and NLO electroweak corrections together with double resummation at NNLL$'$ accuracy of…

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…

High Energy Physics - Phenomenology · Physics 2021-05-19 F. Febres Cordero , M. Kraus , L. Reina

Top quark pair production in association with a $Z$-boson or a photon at the LHC directly probes neutral top-quark couplings. We present predictions for these two processes in the Standard Model (SM) Effective Field Theory (EFT) at…

High Energy Physics - Phenomenology · Physics 2016-02-01 Olga Bessidskaia Bylund , Fabio Maltoni , Ioannis Tsinikos , Eleni Vryonidou , Cen Zhang

We study the quantum properties of top quark pairs in lepton colliders with unpolarised beams, including spin correlations, entanglement, and violation of Bell inequalities. We present analytical results in the SM and in the SMEFT and…

High Energy Physics - Phenomenology · Physics 2024-09-27 Fabio Maltoni , Claudio Severi , Simone Tentori , Eleni Vryonidou

With data collected during the first half of 2011 pp run of the Large Hadron Collider at \surds = 7 TeV, a substantial data sample of high p_T triggers, 1.08/fb, has been collected by the ATLAS detector. Measurements of the production of…

High Energy Physics - Experiment · Physics 2019-08-13 Markus Cristinziani

The physics perspectives of the production and decay of single top quarks and top quark pairs at the CERN Large Hadron Collider (LHC) are reviewed from a phenomenological point of view.

High Energy Physics - Phenomenology · Physics 2008-05-12 Werner Bernreuther

This is a writeup of a plenary talk given at the conference {\it HCP 2012} held November 2012 in Kyoto, Japan. This writeup reviews recent theoretical developments in the following areas of top quark physics at hadron colliders: (a) the…

High Energy Physics - Phenomenology · Physics 2015-06-15 Alexander Mitov