Results 31 to 40 of about 91,270 (284)

Supersymmetric Relations Among Electromagnetic Dipole Operators

open access: yes, 2001
Supersymmetric contributions to all leptonic electromagnetic dipole operators have essentially identical diagramatic structure. With approximate slepton universality this allows the muon anomalous magnetic moment to be related to the electron electric ...
A. Bartl   +50 more
core   +3 more sources

Lepton $$g-2$$ g - 2 and W-boson mass anomalies in the DFSZ axion model

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
With regard to the leptonic magnetic dipole moment anomaly as well as the W-boson mass excess, we study the DFSZ axion model. Considering theoretical and experimental constraints, we show that the muon and electron $$g-2$$ g - 2 anomalies can be ...
Moslem Ahmadvand, Fazlollah Hajkarim
doaj   +1 more source

Smith–Purcell radiation of a vortex electron

open access: yesNew Journal of Physics, 2021
A wide variety of emission processes by electron wave packets with an orbital angular momentum ℓℏ , called the vortex electrons, can be influenced by a nonparaxial contribution due to their intrinsic electric quadrupole moment.
A Pupasov-Maksimov, D Karlovets
doaj   +1 more source

Quantum Size-Driven Spectral Variations in Pillar[n]arene Systems: A Density Functional Theory and Wave Function Assessment

open access: yesMolecules
This study explores the quantum size effects on the optical properties of pillar[n]arene (n = 5, 6, 7, 8) utilizing density functional theory (DFT) and wave function analysis.
Cailian Yao, Tao Wang
doaj   +1 more source

FLArE up dark sectors with EM form factors at the LHC forward physics facility

open access: yesNuclear Physics B, 2023
Despite being mostly secluded, dark sector particles may feebly interact with photons via a small mass-dimension 4 millicharge, a mass-dimension 5 magnetic and electric dipole moment, or a mass-dimension 6 anapole moment and charge radius.
Felix Kling   +3 more
doaj   +1 more source

Multiconfiguration Dirac-Hartree-Fock calculations of atomic electric dipole moments of 225^Ra, 199^Hg, and 171^Yb

open access: yes, 2013
The multiconfiguration Dirac-Hartree-Fock (MCDHF) method has been employed to calculate atomic electric dipole moments (EDM) of 225^Ra, 199^Hg, and 171^Yb.
Biero, Jacek   +3 more
core   +1 more source

Measuring the orbital angular momentum spectrum of an electron beam [PDF]

open access: yes, 2017
Electron waves that carry orbital angular momentum (OAM) are characterized by a quantized and unbounded magnetic dipole moment parallel to their propagation direction.
Balboni, Roberto   +14 more
core   +2 more sources

ConstrainingCPT-even and Lorentz-violating nonminimal couplings with the electron magnetic and electric dipole moments [PDF]

open access: yesPhysical Review D, 2015
We analyse some dimension-five CPT-even and Lorentz-violating nonminimal couplings between fermionic and gauge fields in the context of the Dirac equation. After evaluating the nonrelativistic Hamiltonian, we discuss the behavior of the terms under discrete symmetries and analyse the implied effects. We then use the anomalous magnetic dipole moment and
Araujo, Jonas B.   +2 more
openaire   +2 more sources

Tuning electronic and magnetic properties of off-center D− impurity in GaAs quantum dots with spin–orbit interactions and magnetic field

open access: yesResults in Physics
Our investigation into the electronic, magnetic, and correlation properties of an off-center negatively charged donor D- in a GaAs quantum dot with Gaussian confinement is a novel and intriguing area of research.
Anusha Kachu   +2 more
doaj   +1 more source

Physical Mechanism of One-Photon Absorption, Two-Photon Absorption, and Electron Circular Dichroism of 1,3,5 Triazine Derivatives Based on Molecular Planarity

open access: yesMolecules, 2023
We provide a method to regulate intramolecular charge transfer (ICT) through distorting fragment dipole moments based on molecular planarity and intuitively investigate the physical mechanisms of one-photon absorption (OPA), two-photon absorption (TPA ...
Xiangtao Chen   +9 more
doaj   +1 more source

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