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

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

Wojciech Bizoń
(
- KIT, Karlsruhe
)
,
Fabrizio Caola
(
- Oxford U., Theor. Phys.
)
,
Kirill Melnikov
(
- KIT, Karlsruhe
)
,
Raoul Röntsch
(
- CERN
)

Jun 11, 2021

14 pages

Published in:

Phys.Rev.D 105 (2022) 1, 014023

Published: Jan 1, 2022

e-Print:

2106.06328 [hep-ph]

DOI:

10.1103/PhysRevD.105.014023 (publication)

View in:

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Abstract: (APS)

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.

precision measurement
p p: scattering
coupling: anomaly
Higgs particle: production
Higgs particle: decay
operator: higher-dimensional
quantum chromodynamics
higher-order: 2
vector boson: associated production
electroweak interaction

References(88)

Figures(28)

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