NNLO interpolation grids for jet production at the LHC

D Britzger; A Gehrmann-De Ridder; T Gehrmann; E W N Glover; C Gwenlan; A Huss; J Pires; K Rabbertz; D Savoiu; M R Sutton; J Stark

doi:10.1140/epjc/s10052-022-10880-2

NNLO interpolation grids for jet production at the LHC

Eur Phys J C Part Fields. 2022;82(10):930. doi: 10.1140/epjc/s10052-022-10880-2. Epub 2022 Oct 19.

Authors

D Britzger¹, A Gehrmann-De Ridder^{2

3}, T Gehrmann³, E W N Glover⁴, C Gwenlan⁵, A Huss⁶, J Pires^{7

8}, K Rabbertz^{9

10}, D Savoiu¹¹, M R Sutton¹², J Stark⁹

Affiliations

¹ Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 Munich, Germany.
² Institute for Theoretical Physics, ETH, Wolfgang-Pauli-Strasse 27, 8093 Zurich, Switzerland.
³ Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.
⁴ Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE UK.
⁵ Department of Physics, The University of Oxford, Oxford, OX1 3RH UK.
⁶ Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland.
⁷ LIP, Avenida Professor Gama Pinto 2, 1649-003 Lisbon, Portugal.
⁸ Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal.
⁹ Institut für Experimentelle Teilchenphysik (ETP), KIT, Wolfgang-Gaede-Str. 1, 76131 Karlsruhe, Germany.
¹⁰ Experimental Physics Department, CERN, 1211 Geneva 23, Switzerland.
¹¹ Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany.
¹² Department of Physics and Astronomy, The University of Sussex, Brighton, BN1 9RH UK.

Abstract

Fast interpolation-grid frameworks facilitate an efficient and flexible evaluation of higher-order predictions for any choice of parton distribution functions or value of the strong coupling $α_{s}$ . They constitute an essential tool for the extraction of parton distribution functions and Standard Model parameters, as well as studies of the dependence of cross sections on the renormalisation and factorisation scales. The APPLfast project provides a generic interface between the parton-level Monte Carlo generator and both the APPLgrid and the fastNLO libraries for the grid interpolation. The extension of the project to include hadron-hadron collider processes at next-to-next-to-leading order in perturbative QCD is presented, together with an application for jet production at the LHC.