Results 21 to 30 of about 9,108 (265)

Electric dipole moments, new forces and dark matter

open access: yesJournal of High Energy Physics, 2021
New sources of CP violation beyond the Standard Model are crucial to explain the baryon asymmetry in the Universe. We discuss the impact of new CP violating interactions in theories where a dark matter candidate is predicted by the cancellation of gauge ...
Pavel Fileviez Pérez   +1 more
doaj   +1 more source

Electric dipole moments in the MSSM reloaded [PDF]

open access: yesJournal of High Energy Physics, 2008
We present a detailed study of the Thallium, neutron, Mercury and deuteron electric dipole moments (EDMs) in the CP-violating Minimal Supersymmetric extension of the Standard Model (MSSM). We take into account the complete set of one-loop graphs, the dominant Higgs-mediated two-loop diagrams, the complete CP-odd dimension-six Weinberg operator and the ...
Ellis, J, Lee, Jae Sik, Pilaftsis, A
openaire   +3 more sources

THE ELECTRIC AND MAGNETIC DIPOLE MOMENTS OF THE NEUTRON* [PDF]

open access: yesTransactions of the New York Academy of Sciences, 1977
In 1950 Purcell and Ramsey pointed out that the parity arguments then used to prove that particles and nuclei could not have electric dipole moments, must be based on an experimental rather than a theoretical basis.
openaire   +2 more sources

Search for the anomalous electromagnetic moments of tau lepton through electron–photon scattering at CLIC

open access: yesNuclear Physics B, 2017
We have examined the anomalous electromagnetic moments of the tau lepton in the processes e−γ→νeτν¯τ (γ is the Compton backscattering photon) and e−e+→e−γ⁎e+→νeτν¯τe+ (γ⁎ is the Weizsacker–Williams photon) with unpolarized and polarized electron beams at
Y. Özgüven   +4 more
doaj   +1 more source

Electric dipole moment of a BPS monopole [PDF]

open access: yesPhysical Review D, 1999
Monopole ``superpartner'' solutions are constructed by acting with finite, broken supersymmetry transformations on a bosonic N=2 BPS monopole. The terms beyond first order in this construction represent the backreaction of the the fermionic zero-mode state on the other fields.
Kastor, David, Na, Euy
openaire   +2 more sources

Cesium nD_{J}+6S_{1/2} Rydberg molecules and their permanent electric dipole moments

open access: yesPhysical Review Research, 2020
Cs_{2} Rydberg-ground molecules consisting of a Rydberg, nD_{J} (33≤n≤39), and a ground-state atom, 6S_{1/2} (F=3 or 4), are investigated by photo-association spectroscopy in a cold atomic gas.
Suying Bai   +6 more
doaj   +1 more source

Electric dipole moments in split supersymmetry [PDF]

open access: yesPhysics Letters B, 2006
We perform a quantitative study of the neutron and electron electric dipole moments (EDM) in Supersymmetry, in the limit of heavy scalars. The leading contributions arise at two loops. We give the complete analytic result, including a new contribution associated with Z-Higgs exchange, which plays an important and often leading role in the neutron EDM ...
Giudice GF, Romanino, Andrea
openaire   +3 more sources

Novel applications of Lattice QCD: Parton Distributions, proton charge radius and neutron electric dipole moment

open access: yesEPJ Web of Conferences, 2017
We briefly discuss the current status of lattice QCD simulations and review selective results on nucleon observables focusing on recent developments in the lattice QCD evaluation of the nucleon form factors and radii, parton distribution functions and ...
Alexandrou Constantia
doaj   +1 more source

Electric dipole moments with and beyond flavor invariants

open access: yesNuclear Physics B, 2017
In this paper, the flavor structure of quark and lepton electric dipole moments in the SM and beyond is investigated using tools inspired from Minimal Flavor Violation.
Christopher Smith, Selim Touati
doaj   +1 more source

Confronting Higgcision with electric dipole moments [PDF]

open access: yesJournal of High Energy Physics, 2014
Current data on the signal strengths and angular spectrum of the 125.5 GeV Higgs boson still allow a CP-mixed state, namely, the pseudoscalar coupling to the top quark can be as sizable as the scalar coupling: $C_u^S \approx C_u^P =1/2$. CP violation can then arise and manifest in sizable electric dipole moments (EDMs).
Cheung, Kingman   +3 more
openaire   +2 more sources

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