We combine the NNLO QCD description of Higgs boson production in association with an electroweak vector boson V=W or Z with a similarly precise description of Higgs boson decays into a pair of massive b quarks and with the anomalous couplings that modify interactions of the Higgs and electroweak vector bosons. The resulting numerical code provides the most advanced theoretical tool to investigate such anomalous couplings in the associated Higgs boson production process. We study the impact of anomalous couplings on fiducial cross sections and differential distributions and argue that, with increased QCD precision, smaller anomalous couplings become accessible in kinematic regions where the effects of higher-dimensional operators in the Standard Model effective field theory remain small and the effective field theory expansion is under control.

Anomalous couplings in associated $VH$ production with Higgs decay to massive $b$ quarks at NNLO in QCD / W. Bizoń, F. Caola, K. Melnikov, R.H. Röntsch. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 105(2022 Jan 01), pp. 014023.014023.-1-014023.014023.-14. [10.1103/PhysRevD.105.014023]

Anomalous couplings in associated $VH$ production with Higgs decay to massive $b$ quarks at NNLO in QCD

R.H. Röntsch
Ultimo
2022

Abstract

We combine the NNLO QCD description of Higgs boson production in association with an electroweak vector boson V=W or Z with a similarly precise description of Higgs boson decays into a pair of massive b quarks and with the anomalous couplings that modify interactions of the Higgs and electroweak vector bosons. The resulting numerical code provides the most advanced theoretical tool to investigate such anomalous couplings in the associated Higgs boson production process. We study the impact of anomalous couplings on fiducial cross sections and differential distributions and argue that, with increased QCD precision, smaller anomalous couplings become accessible in kinematic regions where the effects of higher-dimensional operators in the Standard Model effective field theory remain small and the effective field theory expansion is under control.
High Energy Physics; Phenomenology; High Energy Physics; Phenomenology;
Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici
1-gen-2022
11-giu-2021
http://arxiv.org/abs/2106.06328v1
Article (author)
File in questo prodotto:
File Dimensione Formato  
PhysRevD.105.014023.pdf

accesso aperto

Descrizione: Main article
Tipologia: Publisher's version/PDF
Dimensione 3.34 MB
Formato Adobe PDF
3.34 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/903621
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 13
  • ???jsp.display-item.citation.isi??? 11
social impact