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Heavy quark pair production at next-to-next-to-leading order matched to parton shower

30 Mar 2023, 16:50
20m
104AB (MSU Kellogg Center)

104AB

MSU Kellogg Center

Parallel talk WG4: QCD with Heavy Flavours and Hadronic Final States WG4

Speaker

Alessandro Ratti

Description

The production of heavy quarks at the LHC plays a crucial role in the context of precision tests of the Standard Model and the search for new physics. On top of representing a fundamental background for a huge number of processes, heavy quarks can play an important role in constraining Parton Distribution Functions, especially the gluon PDF, in relevant low x regions. Therefore it is essential to set up accurate Monte Carlo event generators for heavy quark pair production in hadronic collisions.
In this talk, we present new NNLO+PS results obtained with the MiNNLOps method. We show that distributions inclusive over QCD radiation are NNLO accurate, while distributions for a quark pair in association with one final-state hard jet retain NLO accuracy. We also compare our NNLO+PS predictions with experimental data from the LHC, mainly focusing on the top and bottom pair production. We also mention recent developments regarding charm pair production.

Submitted on behalf of a Collaboration? No
Participate in poster competition? No

Primary authors

Alessandro Ratti Giulia Zanderighi (Max Planck Society (DE)) Javier Mazzitelli (Paul Scherrer Institut (CH)) Marius Wiesemann (Max Planck Institute for Physics)

Presentation materials