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相关论文: NNLOPS accurate associated HW production

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We present two precision tools for the simulation of Higgs-pair production via vector-boson fusion in the kappa framework for the parameterization of non-standard Higgs couplings. A new implementation of the process is developed in the…

高能物理 - 唯象学 · 物理学 2025-06-13 Barbara Jäger , Alexander Karlberg , Simon Reinhardt

We compute the cross section for the production of a high-mass photon pair in association with two hadronic jets to next-to-leading order (NLO) in quantum chromodynamics (QCD). Our results allow for the first time to reliably predict the…

高能物理 - 唯象学 · 物理学 2015-06-16 Thomas Gehrmann , Nicolas Greiner , Gudrun Heinrich

We consider direct diphoton production in hadron collisions. We compute the next-to-next-to-leading order (NNLO) QCD radiative corrections at the fully-differential level. Our calculation uses the qT subtraction formalism and it is…

高能物理 - 唯象学 · 物理学 2015-06-11 Leandro Cieri

We discuss extensions the CKKW-L and UMEPS tree-level matrix element and parton shower merging approaches to next-to-leading order accuracy. The generalisation of CKKW-L is based on the NL3 scheme previously developed for e+e-…

高能物理 - 唯象学 · 物理学 2015-06-12 Leif Lonnblad , Stefan Prestel

We describe calculations of b b-bar production to next-to-next-to-leading order (NNLO) and next-to-next-to-leading logarithm (NNLL) near threshold in pp interactions. Our calculations are in good agreement with the b b-bar total cross…

高能物理 - 唯象学 · 物理学 2008-11-26 N. Kidonakis , E. Laenen , S. Moch , R. Vogt

We present a calculation of pseudoscalar Higgs production in association with a jet at Next-to-Next-to Leading Order (NNLO) accuracy in QCD. We work in an effective field theory in which $m_t \rightarrow \infty$ resulting in effective…

高能物理 - 唯象学 · 物理学 2024-05-06 Youngjin Kim , Ciaran Williams

We perform a detailed study of NLO parton shower matching uncertainties in Higgs boson pair production through gluon fusion at the LHC based on a generic and process independent implementation of NLO subtraction and parton shower matching…

高能物理 - 唯象学 · 物理学 2018-04-04 Stephen Jones , Silvan Kuttimalai

Triple gauge boson hadroproduction, in particular the production of three $W$-bosons at the LHC, is considered at next-to leading order accuracy in QCD. The NLO matrix elements are combined with parton showers. Multijet merging is invoked…

高能物理 - 唯象学 · 物理学 2014-06-11 S. Hoeche , F. Krauss , S. Pozzorini , M. Schoenherr , J. M. Thompson , K. C. Zapp

We introduce an improvement to the FxFx matrix element merging procedure for $pp\to t \bar t W$ production at NLO in QCD with one and/or two additional jets. The main modification is an improved treatment of jets that are not…

高能物理 - 唯象学 · 物理学 2021-11-24 Rikkert Frederix , Ioannis Tsinikos

We report on the implementation of a new NNLO+PS event generator for the Higgs production via bottom annihilation using the MiNNLOPS method in the POWHEG framework. The calculation has been carried out in the five flavour scheme (5FS),…

高能物理 - 唯象学 · 物理学 2024-05-17 Christian Biello

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 predictions for hadronic decays of the Higgs boson at next-to-next-to-leading order (NNLO) in QCD matched with parton shower based on the POWHEG framework. Those include decays into bottom quarks with full bottom-quark mass…

高能物理 - 唯象学 · 物理学 2021-11-01 YaLu Hu , ChuanLe Sun , Xiao-Min Shen , Jun Gao

We study the production of a Higgs boson in association to a top-antitop pair at the Large Hadron Collider. We show how precise predictions for the differential distributions with respect to the transverse momentum of the Higgs boson, to…

高能物理 - 唯象学 · 物理学 2017-10-25 Alessandro Broggio , Andrea Ferroglia , Miguel C. N. Fiolhais , Antonio Onofre

For the first time, differential cross sections for the production of W-bosons in conjunction with up to three jets, computed at next-to leading order in QCD and including parton shower corrections, are presented and compared to recent…

高能物理 - 唯象学 · 物理学 2013-02-14 Stefan Hoeche , Frank Krauss , Marek Schonherr , Frank Siegert

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…

高能物理 - 唯象学 · 物理学 2021-07-15 Simone Caletti , Oleh Fedkevych , Simone Marzani , Daniel Reichelt , Steffen Schumann , Gregory Soyez , Vincent Theeuwes

We consider the production of the Standard Model Higgs boson through the gluon fusion mechanism in hadron collisions. We present the next-to-next-to-leading order (NNLO) QCD result of the hard-collinear coefficient function for the…

高能物理 - 唯象学 · 物理学 2015-05-28 S. Catani , M. Grazzini

We present a next-to-leading order calculation of Higgs boson production in vector-boson fusion processes interfaced to shower Monte Carlo programs, implemented according to the POWHEG method.

高能物理 - 唯象学 · 物理学 2010-05-28 Paolo Nason , Carlo Oleari

The associated production of a Higgs boson with a top-antitop quark pair is a crucial process at the LHC since it allows for a direct measurement of the top-quark Yukawa coupling. We present the computation of the radiative corrections to…

高能物理 - 唯象学 · 物理学 2023-03-29 Stefano Catani , Simone Devoto , Massimiliano Grazzini , Stefan Kallweit , Javier Mazzitelli , Chiara Savoini

We present a complete next-to-leading order study of top-squark pair production at the LHC, including QCD and EW corrections. The calculation is performed within the Minimal Supersymmetric Standard Model and numerical results are presented…

高能物理 - 唯象学 · 物理学 2015-06-19 Jan Germer , Wolfgang Hollik , Jonas M. Lindert , Edoardo Mirabella

We consider the production of a Z boson decaying to leptons in association with a bottom-quark pair in hadronic collisions. For the first time, we compute predictions at next-to-next-to-leading order (NNLO) in QCD, and we combine them with…

高能物理 - 唯象学 · 物理学 2024-06-21 Javier Mazzitelli , Vasily Sotnikov , Marius Wiesemann