Results 41 to 50 of about 13,630 (113)

A spin 1/2 particle with anomalous magnetic and electric dipole moments

open access: yesProceedings of the National Academy of Sciences of Belarus Physics and Mathematics Series, 2022
It is Petras who first developed the P-symmetric theory for a spin 1/2 particle with an anomalous magnetic moment within the general Gel’fand – Yaglom approach.
Е. М. Ovsiyuk   +3 more
semanticscholar   +1 more source

Revisiting the scalar leptoquark $$(S_1)$$ ( S 1 ) model with the updated leptonic constraints

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
The Standard Model, if extended to the energy scale of $${\mathscr {O}}(1)$$ O ( 1 )  TeV, the known particle spectrum could be augmented with a scalar leptoquark.
Bibhabasu De
doaj   +1 more source

Explaining Atomki anomaly and muon g − 2 in U(1) X extended flavour violating two Higgs doublet model

open access: yesJournal of High Energy Physics, 2021
We investigate a two Higgs doublet model with extra flavour depending U(1) X gauge symmetry where Z′ boson interactions can explain the Atomki anomaly by choosing appropriate charge assignment for the SM fermions.
Takaaki Nomura, Prasenjit Sanyal
doaj   +1 more source

Singlet scalar and 2HDM extensions of the Standard Model: CP-violation and constraints from (g − 2) μ and eEDM

open access: yesJournal of High Energy Physics, 2018
We study popular scalar extensions of the Standard Model, namely the singlet extension, the 2-Higgs doublet model (2HDM) and its extension by a singlet scalar.
Venus Keus   +2 more
doaj   +1 more source

Full Tensor Eigenvector Analysis on Air-Borne Magnetic Gradiometer Data for the Detection of Dipole-Like Magnetic Sources

open access: yesSensors, 2017
The detection of dipole-like sources, such as unexploded ordnances (UXO) and other metallic objects, based on a magnetic gradiometer system, has been increasingly applied in recent years.
Boxin Zuo, Lizhe Wang, Weitao Chen
doaj   +1 more source

Muon and electron g − 2 and lepton masses in flavor models

open access: yesJournal of High Energy Physics, 2020
The stringent experimental bound on μ → eγ is compatible with a simultaneous and sizable new physics contribution to the electron and muon anomalous magnetic moments (g − 2)ℓ (ℓ = e, μ), only if we assume a non-trivial flavor structure of the dipole ...
Lorenzo Calibbi   +3 more
doaj   +1 more source

Lepton flavor violation, lepton (g − 2) μ, e and electron EDM in the modular symmetry

open access: yesJournal of High Energy Physics, 2022
We study the lepton flavor violation (LFV), the leptonic magnetic moments (g − 2) μ, e and the electric dipole moment (EDM) of the electron in the Standard-Model Effective Field Theory with the Γ N modular flavor symmetry. We employ the stringy Ansatz on
Tatsuo Kobayashi   +3 more
doaj   +1 more source

Charged lepton flavor violating radiative decays l i → l j γ in G2HDM

open access: yesJournal of High Energy Physics, 2023
We compute the electromagnetic form factors of the l i l j γ vertex at one-loop level in the minimal G2HDM which has a sub-GeV vector dark matter candidate.
Van Que Tran, Tzu-Chiang Yuan
doaj   +1 more source

Implications of the Muon g-2 result on the flavour structure of the lepton mass matrix

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The confirmation of the discrepancy with the Standard Model predictions in the anomalous magnetic moment by the Muon g-2 experiment at Fermilab points to a low scale of new physics.
Lorenzo Calibbi   +3 more
doaj   +1 more source

Preparations for a search of the muon EDM at PSI [PDF]

open access: yesEPJ Web of Conferences, 2023
Electric dipole moments (EDMs) of fundamental particles violate time invariance and the combined symmetry of charge and parity (CP). The existence of a large muon EDM (muEDM) is made plausible by tensions with Standard Model predictions for semileptonic ...
Schmidt-Wellenburg P.   +6 more
doaj   +1 more source

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