We present the NNLL ' resummed 2-jettiness distribution for decays of the Standard Model Higgs boson to a bb-quark pair and to gluons. The calculation exploits a factorisation formula derived using Soft-Collinear Effective Theory, in which large logarithms of the 2-jettiness are resummed by renormalisation group evolution of the hard, soft and jet contributions to the differential decay rate. We match the resummed predictions to the fixed-order NNLO result using the Geneva framework, extending the validity of the results to all values of the resolution variable and providing a fully exclusive NNLO event generator matched to the Pythia8 parton shower.

Alioli, S., Broggio, A., Gavardi, A., Kallweit, S., Lim, M., Nagar, R., et al. (2021). Resummed predictions for hadronic Higgs boson decays. JOURNAL OF HIGH ENERGY PHYSICS, 2021(4) [10.1007/JHEP04(2021)254].

Resummed predictions for hadronic Higgs boson decays

Simone Alioli
;
Alessandro Broggio;Alessandro Gavardi;Stefan Kallweit;Riccardo Nagar;Davide Napoletano;Luca Rottoli
2021

Abstract

We present the NNLL ' resummed 2-jettiness distribution for decays of the Standard Model Higgs boson to a bb-quark pair and to gluons. The calculation exploits a factorisation formula derived using Soft-Collinear Effective Theory, in which large logarithms of the 2-jettiness are resummed by renormalisation group evolution of the hard, soft and jet contributions to the differential decay rate. We match the resummed predictions to the fixed-order NNLO result using the Geneva framework, extending the validity of the results to all values of the resolution variable and providing a fully exclusive NNLO event generator matched to the Pythia8 parton shower.
Articolo in rivista - Articolo scientifico
NLO Computations; QCD Phenomenology;
English
27-apr-2021
2021
2021
4
254
open
Alioli, S., Broggio, A., Gavardi, A., Kallweit, S., Lim, M., Nagar, R., et al. (2021). Resummed predictions for hadronic Higgs boson decays. JOURNAL OF HIGH ENERGY PHYSICS, 2021(4) [10.1007/JHEP04(2021)254].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/329663
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