Results 21 to 30 of about 3,471,989 (170)

Radiative corrections to decay branching ratios of the CP-odd Higgs boson in two Higgs doublet models

open access: yesNuclear Physics B, 2023
We calculate radiative corrections to decay rates of CP-odd Higgs boson A for various decay modes in the four types of two Higgs doublet models with the softly broken discrete Z2 symmetry.
Masashi Aiko   +2 more
doaj   +1 more source

Measurement of Λ transverse polarization in e + e − collisions at s $$ \sqrt{s} $$ = 3.68 − 3.71 GeV

open access: yesJournal of High Energy Physics, 2023
With data samples collected with the BESIII detector at seven energy points at s $$ \sqrt{s} $$ = 3.68 − 3.71 GeV, corresponding to an integrated luminosity of 333 pb −1, we present a study of the Λ transverse polarization in the e + e − → Λ Λ ...
The BESIII collaboration   +603 more
doaj   +1 more source

Effective model study of the weak finite temperature phase transition [PDF]

open access: yes, 1994
Karsch F, Neuhaus T, Patkós A. Effective model study of the weak finite temperature phase transition. Nuclear Physics, B: Proceedings Supplements. 1994;34:625-627.An effective 3-d 4-component scalar model is studied in order to determine the effects of ...
Karsch, Frithjof   +2 more
core   +1 more source

The effects of Higgs boson couplings through HZZ production at future lepton colliders

open access: yesFrontiers in Physics
IntroductionWe focus on the sensitivity of the anomalous Higgs-gauge boson couplings at HγZ and HZZ vertices through the process ℓ−ℓ+→HZZ at CLIC and Muon Collider.MethodsSignal and relevant backgrounds events are generated in MadGraph within Standard ...
Serdar Spor
doaj   +1 more source

Measurement of the weak mixing angle at a Super Charm-Tau factory with data-driven monitoring of the average electron beam polarization

open access: yesJournal of High Energy Physics, 2020
A method for measuring the average longitudinal polarization of the electron beam at an electron-positron collider operating near the J/ψ resonance is proposed. The method utilizes the differential cross-section of J / ψ → Λ → p π − Λ → p ¯ π + $$ J/\psi
A. Bondar   +4 more
doaj   +1 more source

Vacuum stability with radiative Yukawa couplings

open access: yesJournal of High Energy Physics, 2022
We explore the electroweak vacuum stability in the framework of a recently proposed paradigm for the origin of Yukawa couplings. These arise as low energy effective couplings radiatively generated by portal interactions with a hidden, or dark, sector at ...
Emidio Gabrielli   +3 more
doaj   +1 more source

Higgs vacuum stability and modified chaotic inflation

open access: yesPhysics Letters B, 2017
The issue of electroweak vacuum stability is studied in presence of a scalar field which participates in modifying the minimal chaotic inflation model.
Abhijit Kumar Saha, Arunansu Sil
doaj   +1 more source

N-jettiness in electroweak high-energy processes

open access: yesJournal of High Energy Physics, 2022
We study N-jettiness in electroweak processes at extreme high energies, in which the mass of the weak gauge bosons can be regarded as small. The description of the scattering process such as e − e + → μ − μ + + X is similar to QCD.
Junegone Chay, Taewook Ha, Taehyun Kwon
doaj   +1 more source

Multipole expansion for the electron-nucleus scattering at high energies in the unified electroweak theory

open access: yesPhysics Letters B, 2023
The paper presents the multipole expansion for the electron-nucleus scattering cross section at high energies within the framework of the unified electroweak theory.
Z.P. Luong, M.T. Vo
doaj   +1 more source

Ground-state β-feeding determination using total-absorption spectrometers

open access: yesFrontiers in Physics
The determination of the β intensity probability between the ground states of parent and daughter nuclei has traditionally been a difficult task with standard γ-spectroscopy approaches due to the lack of the associated γ emission.
Víctor Guadilla
doaj   +1 more source

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