Results 121 to 130 of about 4,794 (202)

Constraints on standard model effective field theory for a Higgs boson produced in association with W or Z bosons in the H → b b ¯ $$ \textrm{b}\overline{\textrm{b}} $$ decay channel in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV

open access: yesJournal of High Energy Physics
A standard model effective field theory (SMEFT) analysis with dimension-six operators probing nonresonant new physics effects is performed in the Higgs-strahlung process, where the Higgs boson is produced in association with a W or Z boson, in proton ...
The CMS collaboration   +2382 more
doaj   +1 more source

Reactor neutrino oscillations as constraints on effective field theory

open access: yesJournal of High Energy Physics, 2019
We study constraints on the Standard Model Effective Field Theory (SMEFT) from neutrino oscillations in short-baseline reactor experiments. We calculate the survival probability of reactor antineutrinos at the leading order in the SMEFT expansion, that ...
Adam Falkowski   +2 more
doaj   +1 more source

Renormalisation group effects on SMEFT interpretations of LHC data

open access: yesJournal of High Energy Physics, 2023
We explore the impact of Renormalisation Group (RG) effects in the Standard Model Effective Field Theory (SMEFT) interpretations of LHC measurements.
Rafael Aoude   +4 more
doaj   +1 more source

Probing the flavour-blind SMEFT: EFT validity and the interplay of energy scales

open access: yesJournal of High Energy Physics
The Standard Model Effective Field Theory (SMEFT) offers a systematic approach to study potential deviations from the Standard Model (SM) through higher-dimensional operators that encapsulate new physics effects.
Luca Mantani, Veronica Sanz
doaj   +1 more source

NNLO event generation for pp → Zh → ℓ + ℓ − b b ¯ $$ pp\to Zh\to {\mathrm{\ell}}^{+}{\mathrm{\ell}}^{-}b\overline{b} $$ production in the SM effective field theory

open access: yesJournal of High Energy Physics, 2022
We consider associated Zh production with Z → ℓ + ℓ − and h → b b ¯ $$ h\to b\overline{b} $$ decays in hadronic collisions. In the framework of the Standard Model effective field theory (SMEFT) we calculate the QCD corrections to this process and achieve
Ulrich Haisch   +4 more
doaj   +1 more source

The geometric SMEFT

open access: yes, 2022
Effective field theories, like the Standard Model Effective Field Theory (SMEFT), are defined by a chosen field content and a set of symmetries, up to a cut off scale $Λ$. Usually, in order to perform calculations, gauge independent field re-definitions consistent with the symmetries of the theory are then used to redefine the fields.
openaire   +2 more sources

The Neutrino Option

open access: yes, 2017
The minimal seesaw scenario can radiatively generate the Higgs potential to induce electroweak symmetry breaking while supplying an origin of the Higgs vacuum expectation value from an underlying Majorana scale.
Brivio, llaria, Trott, Michael
core   +1 more source

Production of two, three, and four Higgs bosons: where SMEFT and HEFT depart [PDF]

open access: green, 2023
Rafael L. Delgado   +4 more
openalex   +1 more source

Higgs production from anomalous gluon dynamics

open access: yesJournal of High Energy Physics
We present a two-loop analysis of the contributions to Higgs production via gluon-gluon fusion arising from the triple-gluon operator in the Standard Model effective field theory (SMEFT).
Ulrich Haisch
doaj   +1 more source

The Global Electroweak and Higgs Fits in the LHC era

open access: yes, 2017
We update the global fit to electroweak precision observables, including the effect of the latest measurements at hadron colliders of the $W$ and top-quark masses and the effective leptonic weak mixing angle.
Ciuchini, Marco   +6 more
core   +1 more source

Home - About - Disclaimer - Privacy