نتایج جستجو برای: Magnetic Field Assisted EDM
تعداد نتایج: 1168089 فیلتر نتایج به سال:
In this investigation, the material removal rate, tool wear rate and surface integrity obtained by EDM, ultrasonic vibrations assisted EDM and magnetic field assisted EDM were studied and compared with together to show the quality of the effects of applying each of ultrasonic vibrations to tool and magnetic field around gap distance of EDM process on material removal rate, tool wear rate, and s...
For highly sensitive magnetic measurements, e.g., a measurement of the neutron electric dipole moment (EDM), the magnetic field has to be stable in time on a level below picoTesla. One of several measures we employ to achieve this uses an external field coil system which can stabilize the ambient external field at a predefined value. Here we report on the construction and characterization of su...
The search for electric dipole moment (EDM) using ultra cold neutrons (UCNs) may discover new Physics beyond the Standard Model (SM) of electroweak interaction, where the presence of EDM, which would signal T violation and thus CP violation (by assuming CPT invariance), may explain the asymmetry of particle-antiparticle observed in our universe. In the measurement of EDM, a small, uniform and f...
Neutron electric dipole moment measurement (EDM) requires precise control of the electric and magnetic field in the test cell. External magnetic field should be shielded out completely. As the experiment will be conducted in cryogenic environment (~ 4K), conventional μ-metal shield cannot work in low temperature. Shielding property of another magnetic material, Metglas, was study in this projec...
We present measurements of Stark interference in the 6S0 → 6P1 transition in Hg, a process whereby a static electric field E mixes magnetic dipole and electric quadrupole couplings into an electric dipole transition, leading to E-linear energy shifts similar to those produced by a permanent atomic electric dipole moment (EDM). The measured interference amplitude, aSI = (aM1 + aE2) = (5.8 ± 1.5)...
We propose a nuclear mechanism which can induce an atomic electric dipole moment (EDM). Parity and time reversal violating (P, T-odd) nuclear forces generate a mixed P, T-odd nuclear polarizability β ik (defined by an energy shift U = −β ik E i H k , E is electric field and H magnetic field). The interaction of atomic electrons with β ik produces an atomic EDM. We performed an analytical calcul...
where B is the magnetic flux density vector and E is the electric field vector. Both quantities, O1 and O2, have the physical dimension of M (higher-dimensional operators). Hence they do not appear in the starting Lagrangian, and usually appear only through the quantum effect. In particular EDM term, O2, violates the CPsymmetry. Because of this, the experimental efforts to measure EDM, as well ...
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