Spectroscopy with cold and ultra-cold neutrons
نویسندگان
چکیده
منابع مشابه
Studies with Ultra-cold and Cold Neutrons
The experimental search for neutron electric dipole moment (EDM-experiment) is considered to be one of the crucial experiments in physics as it should explain the nature of violation in relation to time reversal. In practically every work concerning T-violation, possible effects are estimated basing on normalization to the upper limit of neutron EDM. So far it has been the most sensitive method...
متن کاملInteraction of Ultra-Cold Neutrons with Condensed Matter
General theory of neutron scattering (elastic and inelastic) is presented. It is applicable for the whole domain of slow neutrons and includes as limiting cases existing theories for thermal and cold neutrons and for elastic scattering of UCN. New expression for inelastic scattering cross section for UCN is proposed. It differs from the usually used by proper account of re-scattering processes....
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In polarized neutron decay, the angular correlation between the neutron spin and the direction of emission of the electron is characterized by the coefficient A. Measuring A involves determining the forward-backward asymmetry of the decay beta with respect to the direction of the neutron polarization. The value of A, when combined with measurements of the neutron lifetime, determines the values...
متن کاملProduction of ultra cold neutrons by a doppler shifter with pulsed neutrons at J-PARC
Ultracold neutrons (UCNs) are neutrons whose kinetic energy is around a few hundred nanoelectronvolts. Neutrons with such small kinetic energy can be trapped in a material vessel or magnetic fields. Because of these unique characteristics, UCNs are used for some important experiments of fundamental physics. The Doppler shifter is a device to produce UCN by slowing them down by the reflection on...
متن کاملTesting Time Reversal Invariance with Cold Neutrons
CP violation is implemented in the Standard Model (SM) of particle physics via a non-trivial phase in the Cabbibo-Kobayashi-Maskava matrix 1. Dedicated experiments and facilities have been built to check the predictions of the SM for CP violation, e.g. in the Kaon or the B meson sectors. Up to now, no significant deviations have been found. However, the CP violation implemented in the SM is ins...
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ژورنال
عنوان ژورنال: EPJ Web of Conferences
سال: 2015
ISSN: 2100-014X
DOI: 10.1051/epjconf/20159305002