Results 101 to 110 of about 79,320 (197)

The electromagnetic multipole moments of the possible charm-strange pentaquarks in light-cone QCD

European Physical Journal C: Particles and Fields, 2018
We investigate the electromagnetic properties of possible charm-strange pentaquarks in the framework of the light-cone QCD sum rule using the photon distribution amplitudes.
K. Azizi, U. Özdem
doaj   +1 more source

Closer look at the matching condition for radiative QCD θ parameter

Journal of High Energy Physics
In this paper, we scrutinize a radiatively generated QCD θ parameter at the two-loop level based on both full analytical loop functions with the Fock-Schwinger gauge method and the effective field theory approach, using simplified models. We observe that
Tatsuya Banno, Junji Hisano, Teppei Kitahara, Naohiro Osamura   +3 more
doaj   +1 more source

A strange contribution to the neutron EDM

Journal of High Energy Physics
We analyze the contribution of hypothetical quark electric dipoles to the electric dipole moment (EDM) of the neutron. Particular emphasis is devoted to the strange quark contribution.
Luca Vecchi
doaj   +1 more source

Precise measurement of CP violating τ EDM through e + e − → γ *, ψ(2s) → τ + τ −

Journal of High Energy Physics
A nonzero electric dipole moment of a tauon, d τ , signals CP violation and provides an important probe for new physics. We study methods to measure d τ at low energy e + e − colliders through the processes e + e − → γ *, ψ(2S) → τ + τ − with τ ± decays ...
Xiao-Gang He, Chia-Wei Liu, Jian-Ping Ma, Chang Yang, Zi-Yue Zou   +4 more
doaj   +1 more source

R-parity violating two-loop level rainbowlike contribution to the fermion electric dipole moment

, 2012
We analyze the two-loop level R-parity violating supersymmetric contribution to the electric and chromoelectric dipole moments of the fermion with neutrino and gaugino in the intermediate state.
Yamanaka, Nodoka
core  

Electromagnetic response in dipole superfluids

Communications Physics
The Meissner effect is a hallmark of superconductivity arising from the interplay between charged superfluids and electromagnetic fields. However, superfluidity can also occur in systems of charge-neutral particles with magnetic or electric dipole ...
Kazuki Yamamoto, Takuto Kawakami, Mikito Koshino   +2 more
doaj   +1 more source

Constraints on Lorentz violation parameter through electric dipole moments

European Physical Journal C: Particles and Fields
The electric dipole moments of leptons (l-EDMs) could arise from the electrodynamics part of standard model extension (SME). In this work, we investigate the cross section of electron-positron collision in the Lorentz violation (LV) background via the l ...
Sarah Aghababaei
doaj   +1 more source

Electric Dipole Moments as indirect probes of dark sectors

Journal of High Energy Physics
Dark sectors provide beyond Standard Model scenarios which can address unresolved puzzles, such as the observed dark matter abundance or the baryon asymmetry of the Universe.
Marco Ardu, Moinul Hossain Rahat, Nicola Valori, Oscar Vives   +3 more
doaj   +1 more source

The noncommutative effects on the dipole moments of fermions in the standard model

, 2003
We study the dipole moments, electric dipole moment, weak electric dipole moment, anomalous magnetic moment, anomalous weak magnetic moment, of fermions in the noncommutative extension of the SM.
Iltan, E.
core  

Electric dipole moments in 5+3 flavor weak effective theory

Journal of High Energy Physics
A fully generic treatment of electric dipole moments (EDMs) is presented in the CP-violating and flavor-conserving weak effective field theory (WET) with five flavors of quarks and three flavors of leptons. We systematically analyze leading contributions
Jacky Kumar, Emanuele Mereghetti
doaj   +1 more source