Results 21 to 30 of about 896 (184)

Electroweak constraints from the COHERENT experiment

open access: yesJournal of High Energy Physics, 2022
We compute bounds on coefficients of effective operators in the Standard Model that can be inferred from observations of neutrino scattering by the COHERENT experiment.
Witold Skiba, Qing Xia
doaj   +1 more source

Towards the renormalisation of the Standard Model effective field theory to dimension eight: Bosonic interactions I

open access: yesSciPost Physics, 2021
We compute the one-loop renormalisation group running of the bosonic Standard Model effective operators to order $v^4/\Lambda^4$, with $v\sim 246$ GeV being the electroweak scale and $\Lambda$ the unknown new physics threshold.
Mikael Chala, Guilherme Guedes, Maria Ramos, Jose Santiago
doaj   +1 more source

Vector condensate model of electroweak interactions [PDF]

open access: yesActa Physica Hungarica A) Heavy Ion Physics, 1997
9p Latex, no figure, the original postscript file is replaced by the LaTeX src ...
Cynolter, G., Pocsik, G.
openaire   +2 more sources

ALP — SMEFT interference

open access: yesJournal of High Energy Physics, 2021
The Standard Model Effective Field Theory (SMEFT) offers a powerful theoretical framework for parameterizing the low-energy effects of heavy new particles with masses far above the scale of electroweak symmetry breaking.
Anne Mareike Galda   +2 more
doaj   +1 more source

LEPTONIC ELECTROWEAK SPIN-TORSION INTERACTIONS [PDF]

open access: yesModern Physics Letters A, 2011
In this paper we consider the most general field equations for a system of two fermions of which one single-handed, showing that the spin-torsion interactions among these spinors have a structure identical to that of the electroweak forces among leptons; possible extensions are discussed.
openaire   +3 more sources

An effective field theory approach for electroweak interactions in the high energy limit

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We present an effective action for the electroweak sector of the standard model valid for the calculation of scattering amplitudes in the high energy (Regge) limit.
Melina Gómez Bock   +2 more
doaj   +1 more source

Dark matter spectra from the electroweak to the Planck scale

open access: yesJournal of High Energy Physics, 2021
We compute the decay spectrum for dark matter (DM) with masses above the scale of electroweak symmetry breaking, all the way to the Planck scale. For an arbitrary hard process involving a decay to the unbroken standard model, we determine the prompt ...
Christian W. Bauer   +2 more
doaj   +1 more source

Lorentz-symmetry violation in the electroweak sector: Scattering processes in future e+ e− colliders

open access: yesNuclear Physics B, 2022
We study CPT-odd non-minimal Lorentz-symmetry violating couplings in the electroweak sector modifying the interactions between leptons, gauge mediators and the Higgs boson.
P. De Fabritiis, P.C. Malta, M.J. Neves
doaj   +1 more source

Single-top associated production with a Z or H boson at the LHC: the SMEFT interpretation

open access: yesJournal of High Energy Physics, 2018
At the LHC, top quarks can be produced singly with a sizeable rate via electroweak interactions. This process probes a limited set of top-quark electroweak couplings, i.e., the same entering the top-quark decay, yet at higher scales and with a different ...
Celine Degrande   +4 more
doaj   +1 more source

Power suppressed corrections show new features of infrared cancellations

open access: yesJournal of High Energy Physics, 2022
The cancellation of infrared (IR) divergences is an old topic in quantum field theory whose main results are condensed into the celebrated Kinoshita-Lee-Nauenberg (KLN) theorem.
Paolo Ciafaloni   +2 more
doaj   +1 more source

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