Eur. Phys. J. C (2018) 78: 151
https://doi.org/10.1140/epjc/s10052-018-5638-y

Regular Article - Theoretical Physics

Heavy quark radiation in NLO+PS POWHEG generators

¹ Università di Napoli “Federico II”, Complesso di Monte Sant’Angelo, via Cintia, 80126, Napoli, Italy
² INFN, Sezione di Napoli, Napoli, Italy
³ Theoretical Physics Department, CERN, Geneve, Switzerland
⁴ INFN, Sezione di Milano-Bicocca, Milano, Italy

^* e-mail: francesco.tramontano@na.infn.it

Received: 29 November 2017
Accepted: 10 February 2018
Published online: 21 February 2018

Abstract

In this paper we deal with radiation from heavy quarks in the context of next-to-leading order calculations matched to parton shower generators. A new algorithm for radiation from massive quarks is presented that has considerable advantages over the one previously employed. We implement the algorithm in the framework of the POWHEG-BOX, and compare it with the previous one in the case of the hvq generator for bottom production in hadronic collisions, and in the case of the bb4l generator for top production and decay.