Top-pair production at the LHC with MINNLOPS

Journal of High Energy Physics

Pier Francesco Monni¹  Marius Wiesemann²  Javier Mazzitelli²  Giulia Zanderighi²  Paolo Nason³  Emanuele Re³ 

[1] CERN, Theoretical Physics Department;Max-Planck-Institut für Physik;Università di Milano-Bicocca and INFN, Sezione di Milano-Bicocca;

关键词: Higher-Order Perturbative Calculations;    Parton Shower;    Top Quark;   

DOI  :  10.1007/JHEP04(2022)079

来源: DOAJ

【 摘 要 】

Abstract We consider the production of a pair of heavy quarks and illustrate the derivation of the MiNNLOPS method to match next-to-next-to-leading order calculations with parton showers (NNLO+PS) for this class of processes. As a first application, we construct an event generator for the fully differential simulation of hadronic top-quark pair production at NNLO+PS and discuss all details of its implementation in a parton shower Monte Carlo framework. We present new phenomenological results for the Large Hadron Collider obtained by including the tree-level decays of the top quarks, while accounting for spin-correlation effects. A comprehensive comparison to LHC measurements shows an excellent description of experimental data across multiple hadronic and leptonic particle-level observables. The computer code is available for download within the Powheg-Box.

【 授权许可】

Unknown