نتایج جستجو برای: deuteron polarisation
تعداد نتایج: 6660 فیلتر نتایج به سال:
Modern NMR methods in liquids are based on the transfer of polarisation from nucleus to nucleus to generate multidimensional heteronuclear correlation spectra. The factors that influence the efficiency of heteronuclear polarisation transfer in multi-pulse experiments, and in that way the quality of spectra are the subject of this thesis. The flow of coherence through pulse sequences can be desi...
The introduction of a longitudinal polarised positron beam in an ee linear collider calls for its polarisation monitoring and measurement at low energies near its production location. Here it is shown that a relatively simple Bhabha scattering polarimeter allows, at energies below 5000 MeV, a more than adequate positron beam longitudinal polarisation measurement by using only the final state el...
Guided by the results of our analyzing-power measurements for p+d elastic scattering at 200 and 120 MeV,' we have designed and constructed two proton polarimeters for the IUCF high-energy beamlines. Each polarimeter contains four pairs of scintillators, where each pair consists of a thin AE paddle for the proton operated in coincidence with a stopping scintillator for the deuteron. The recoil d...
In the present paper influence of tensor electric and magnetic polarizabilities on spin evolution in the resonance deuteron EDM experiment is considered in details. It is shown that besides EDM the electric and magnetic polarizabilities also contribute to the vertical spin component P3. Moreover, the electric polarizability contributes to the P3 component even when the deuteron EDM is supposed ...
The hadron-deuteron correlation function has attracted many interests as a potential method to access the three-hadron interactions. However, weakly-bound nature of deuteron not been considered in preceding studies. In this study, breakup effect on deuteron-$\Xi^-$ ($d$-$\Xi^-$) $C_{d\Xi^-}$ is investigated. $d$-$\Xi^-$ scattering described by nucleon-nucleon-$\Xi$ three-body reaction model. co...
We study deeply virtual Compton scattering (DVCS) on a deuteron target. We model the Generalized Quark Distributions in the deuteron by using the impulse approximation for the lowest Fock-space state. Numerical predictions are given for the unpolarized cross sections for the kinematical regimes relevant for JLab and HERMES at HERA. Differential cross sections show the same pattern as for the pr...
A theoretical approach to the investigation of spin-dependent structure functions in deep inelastic scattering of polarized leptons off polarized nuclei, based on the effective meson-nucleon theory and operator product expansion method, is proposed and applied to deuteron and 3 He. The explicit forms of the moments of the deuteron and 3 He spin-dependent structure functions are * On leave from ...
A radiative deuteron-proton capture experiment was carried out at KVI using polarized-deuteron beams at incident energies of 55, 66.5, and 90 MeV/nucleon. Vector and tensor-analyzing powers were obtained for a large angular range. The results are interpreted with the help of Faddeev calculations, which are based on modern twoand three-nucleon potentials. Our data are described well by the calcu...
Faddeev calculations have been performed for nucleon-deuteron photodisin-tegration of 3 He (3 H) and proton-deuteron radiative capture. The bulk of the results is based on the AV18 nucleon-nucleon force and the Urbana IX three-nucleon force together with explicit exchange currents or applying the Siegert approach. Three-nucleon force effects are predicted for both processes and supported by mos...
core were investigated. It was shown from the measurement that the beat length was about L = 23 mm (birefringence B = 5 x 10") and the state of linear polarisation of the incident light beam was maintained up to 0-6 kg/cm of the concentrated force when the incident plane of polarisation was coincident with the major axis of the fibre. It was also shown that the degree and the plane of polarisat...
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