R.G. Seyler

Polarization from scattering polarized spin-12 on unpolarized spin-1 particles

Abstract The most general parity and time reversal invariant form for the spin - 1 2 − spin −1 scattering amplitude matrix is obtained. The polarization observables (cross section, spin - 1 2 polarization, spin-1 polarization, and spin correlation) which arise upon scattering polarized spin - 1 2 by unpolarized spin-1 particles are expressed in terms of the coefficients of this general form. A phase shift parameterization of these coefficients is also given.

Polarization and phase shifts in 6Li(p, p)6Li from 0.5 to 5.6 MeV

Abstract Angular distributions of polarization in 6Li(p, p)6Li have been measured to an accuracy of about 0.01 at 11 energies from 1.2 to 3.2 MeV with a target of 20 keV thickness at 2 MeV. These data and cross section measurements of others are reproduced well by a set of phase shifts, which vary reasonably with energy and which are complex because a reaction channel is open. The 2S-, 4S- and 4P-phases suffice for the analysis. Neither 2P-phases nor mixing parameters are found to be important. The 4 P 5 2 phase resonates at 1.8 MeV as expected. The broad resonance at 5 MeV can be reproduced equally well with either the 4 P 3 2 or the 4 P 1 2 phase resonating, the former agreeing with a previous spin assignment. Measurements of cross section, proton polarization and 6Li vector polarization cannot distinguish between the two sets, but measurements of 6Li tensor polarization could. The uniqueness of the phases is discussed and a polarization contour map is presented.

Difference between Polarization and Analyzing Power in the Reaction H 3 ( p , n ) He 3

We have examined the difference between polarization and analyzing power for the reaction

Reaction mechanism independent particle-gamma correlation functions using polarized particles

^{3}\mathrm{H}(p,n)^{3}\mathrm{He}

Polarization and the statistical model

. We find that this difference is due to the presence of

Proton capture to bound and unbound states of /sup 12/C

^{3}P_{2}\ensuremath{\leftrightarrow}^{3}F_{2}

2−Threshold State inBe8

transitions which are enhanced in the vicinity of the lowest

Evidence for a 2/sup +/ resonance in /sup 4/He at 40 MeV

{2}^{\ensuremath{-}}

Proton radiative capture into closed-shell and closed-shell-plus-one-proton nuclei

state of

j dependence of polarization effects in nucleon capture reactions

^{4}\mathrm{He}