نتایج جستجو برای: polarized liquid 3he
تعداد نتایج: 254475 فیلتر نتایج به سال:
This is an update for E12-11-0071, which was approved by PAC 37 in Jan 2011. E12-11-007 will measure single-target and double spin azimuthal asymmetries (SSAs and DSAs) in semi-inclusive electroproduction of charged pions using the upgraded CEBAF electron beam, a longitudinally polarized 3He target as an effective polarized neutron target, and the recently approved SoLID (Solenoidal Large Inten...
We have observed depolarization effects when high intensity cold neutron beams are incident on alkali-metal spin-exchange-polarized 3He cells used as neutron spin filters. This was first observed as a reduction of the maximum attainable 3He polarization and was attributed to a decrease of alkali-metal polarization, which led us to directly measure alkali-metal polarization and spin relaxation o...
Hyperpolarized K-3He comagnetometers have been used for tests of fundamental physics and inertial rotation sensing. These experiments will demonstrate increased sensitivity if the 3He buffer gas is replaced with 21Ne. We measure the parameters necessary to realize implementation of an alkali-metal–21Ne comagnetometer for two promising alkali-metal species, Rb and K. The spin-exchange rate const...
2014 A tripod field is used as model for a general anisotropic fluid. The elastic energy density is expanded as invariant polynomial in the components of the contortion tensor. Surface energy terms are derived from compatibility conditions for the tripod field. The model is applied to cholesteric liquid crystals of large and small pitch, to 3He-A, and to biaxial nematic liquid crystals. J. Phys...
A mean field approach is used to investigate the liquid-gas phase transition in 3He. The method provides a reasonable prédiction for the vapour pressure in the whole région of températures. The prédictions for the critical point and the température dependence of the liquid and gas densities along the coexistence line are also discussed. J. Physique 48 (1987) 911-914 JUIN 1987, Classification Ph...
A final-state-effects formalism suitable to analyze the high-momentum response of Fermi liquids is presented and used to study the dynamic structure function of liquid 3He. The theory, developed as a natural extension of the Gersch-Rodriguez formalism, incorporates the Fermi statistics explicitly through a new additive term which depends on the semidiagonal two-body density matrix. The use of a...
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