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NNLOPS description of the H→ b$\overline{b}$ decay with MiNLO

Bizoń, Wojciech; Re, Emanuele; Zanderighi, Giulia

Abstract:
We present an event generator that describes the Higgs boson decay into b-quarks at next-to-next-to-leading-order (NNLO) in QCD and allows for a consistent matching to parton shower. For this purpose, we work within the POWHEG framework and employ the MiNLO method to produce an NNLO-accurate H →b$\overline{b}$ event sample which can further be interfaced with a generic Higgs boson production mode. The resulting events, that combine Higgs production and decay, can be matched to parton shower by means of a vetoed shower. As an example, we present a short phenomenological study for associated Higgs production (HZ) and vector boson fusion (VBF) processes. We release the source code that was used to obtain these results as an h_bbg user process in POWHEG-BOX-V$_{2}$. We also provide tools that enable interfacing the decay events with events for an arbitrary Higgs production mode and subsequent matching of the combined Les Houches (LH) events with a parton shower.

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Verlagsausgabe §
DOI: 10.5445/IR/1000120952
Veröffentlicht am 04.07.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Teilchenphysik (TTP)
Institut für Kernphysik (IKP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 06.2020
Sprache Englisch
Identifikator ISSN: 1029-8479
KITopen-ID: 1000120952
HGF-Programm 51.01.01 (POF III, LK 01)
Teilchenphysik
Erschienen in Journal of high energy physics
Band 2020
Heft 6
Seiten Art. Nr.: 6
Vorab online veröffentlicht am 01.06.2020
Schlagwörter NLO Computations, QCD Phenomenology
Nachgewiesen in Web of Science
Scopus
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