The magnetomorphic size effect was found in tungsten single crystals. Analytic Fermi-surface models, one of which is calculated here from de Haas-van Alphen results, are analyzed to show that the observed electronic orbital bands originate on the hole octahedron in an inflection region for $\overrightarrow{\mathrm{H}}\parallel 〈100〉$ and in an extended limiting point region for $〈111〉$. Preliminary evidence also is discussed for limiting point orbits on the hole ellipsoids.

Measurements of the de Haas-van Alphen effect in pure and cobalt-doped palladium have been performed. Data on the effective mass and $g$ factor are presented for pure Pd. Measurements on the ferromagnetic alloys clearly show the existence of an itinerant component in the magnetization.

The magnetic form factor of thulium at 4.2°K has been measured with polarized neutrons. With the exception of the two innermost reflections, the form factor is in excellent agreement with the theoretical $4f^{12}$ form factor. At low angles an additional contribution to the form factor is present. We have interpreted this as $5d$-like conduction-electron polarization, although the magnitude is unexpectedly large.

The isospin degree of freedom of the pairing force is studied in the framework of the rotational ($\Delta \ne 0$) and vibrational ($\Delta =0\mathrm{}$) models. The magnitude $\Delta$ is the BCS gap parameter. The predictions of the two models concerning two-nucleon transfer reactions and energy levels are compared and contrasted. Some of the available experimental material around ${\mathrm{Ni}}^{56}$ is discussed in this framework. Further experiments are suggested which would help decide between the coupling schemes.

A simple parametrization of the nonlocal effective field in nuclei is provided. The parameters as determined by fitting the properties of nuclear matter are quite similar to those which have been shown to yield good results for the size and binding energies of finite nuclei throughout the periodic table. It is shown that the self-consistent single-particle energies are significantly different from the separation energies (rearrangement effect) and consequences for structure calculations and particle knock-out experiments are discussed.

We present $p-p$ elastic differential cross-section results at nine momenta in the range 1.5 to 3.5 GeV/c for $40°\lesssim {\theta }_{\mathrm{c}.\mathrm{m}.\mathrm{}}<~90°$. No strong evidence of secondary diffraction-like behavior in this momentum region is observed. Rapid changes in the slope of the 90° cross section are seen near $-t=0.7\mathrm{} \mathrm{and} 3$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$.

The dynamical symmetry of a charged spinless harmonic oscillator in a constant magnetic field is identified. For low fields it is SU(3), for high fields SU(2,1), and for a certain definite intermediate field SU(2)⊗H.

We obtain, on the basis of general principles only, a quantitative formula for the distribution of pionization products in ultrahigh-energy scattering as a function of the longitudinal momentum. Field theory is then used as a model to show the existence of the pionization process, and it also serves as an example in which the formula is satisfied. A highly feasible storage-ring experiment is proposed to test this predicted distribution and hence the underlying principles.

Considerable evidence for duality is found in a study of the amplitude for ${\pi }^{-}p\to {\pi }^{+}{\Delta }^{-}\mathrm{}\left(1236\right)\mathrm{}$ scattering at center of mass energies 1.5-1.8 GeV. Cancellation between dominant contributions from the ${\frac{5}{2}}^{+}$, $F_{15}\mathrm{}\left(1690\right)\mathrm{}$ and the ${\frac{3}{2}}^{-}$, $D_{13}\mathrm{}\left(1520\right)\mathrm{}$ is primarily responsible for the local averaging.

An analysis of the difference between the charge-exchange reactions $K^{+}n\to K^{0}p$ and $K^{-}p\to {\overline{K}}^{0}n$ over the momentum range 1-5.5 GeV/c provides strong evidence for exchange degeneracy of the ($\rho$, $A_2$) trajectories and shows the importance of the exchange of secondary trajectories. The energy dependence of this difference is shown to be inconsistent with simple cut models. A new test of the duality principle is proposed and appears to be in good agreement with the present data.

We observe production of the $A_2$ meson in the reaction $\gamma p\to n{\pi }^{+}{\pi }^{+}{\pi }^{-}$ at 4.3 and 5.25 GeV. The data are consistent with a one-pion-exchange production mechanism and we give an estimate of $\Gamma (A_2\to \gamma \pi )\approx 0.5$ MeV. A similar value for $\Gamma (A_2\to \gamma \pi )$ is also obtained using a vector dominance model.

The $g$ values for the two hyperfine components of the $J^{\prime }=\frac{3}{2}$, $K^{\prime }=2\mathrm{}$, $v^{\prime }=0\mathrm{}$ level of the $A{}_{}{}^2{}_{}{}^{}\Sigma _{}^{+}{}_{}{}^{}$ state of OH have been determined using the technique of optical radio-frequency double resonance. They are found to be $g(F=2\mathrm{})=0.301\mathrm{}\pm 0.0015$ and $g(F=1\mathrm{})=0.492\mathrm{}\pm 0.0045$ in agreement with the values calculated assuming Hund's case (b) coupling. From our earlier measurement of $g\tau$ for this state, the radiative lifetime is found to be (7.7±0.8) × ${10}^{-7\mathrm{}}$ sec, corresponding to a band oscillator strength $f_{00}=(9.3\mathrm{}\pm 1.0)\times {10}^{-4\mathrm{}}$.

The ratio $\frac{g_J\left(\mathrm{H}\right)}{g_J\left(\mathrm{D}\right)}$ in the electronic ground state has been determined using optical pumping of Rb and spin-exchange detection of H and D atomic Zeeman resonances. The result is $\frac{g_J\left(\mathrm{H}\right)}{g_J\left(\mathrm{D}\right)}=1+(7.2\mathrm{}\pm 3.0)\times {10}^{-9\mathrm{}}$. The error includes an estimate of possible systematic effects.

Electron-spin echoes associated with magnetic-resonance lines arising from exchange effects in heavily iron-doped rutile have been observed continuously over the frequency range from 7.7 to 10.1 GHz at zero magnetic field. Values of the phase memory time measured at zero field for various frequencies were orders of magnitude larger than expected for the spin concentrations involved, but decreased rapidly with the application of a static magnetic field.

Electron loss from the magnetic mirrors in the DCX-2 experiments is shown to lead to a coupling of a gyrofrequency instability and a normally stable $\nabla B$ drift wave. This coupling produces a new instability near the drift frequency and can lead to cross-field particle transport. The effect is predicted to occur in minimun-$B$ geometries and may be the mechanism responsible for the particle loss in several experiments.

Light-scattering measurements were made in a ternary critical mixture of phenol and water with hypophosphorous acid as an impurity. The exponents which characterize the divergence of the intensity and inverse linewidth near the critical point are found to have nearly the same value in this system as in pure phenol-water. In addition it was observed that the light-scattering cross section and the inverse linewidth were appreciably larger in the impure system than in the pure one. Some of the experimental results are compared with theory.

Persistent currents in superfluid helium contained in the pores of a packed powder have been observed by means of the Doppler-shifted splitting of an azimuthal resonant fourth-sound mode of the cylindrical resonator containing the helium.

The Hall effect in the vortex state of a dirty type-II superconductor is re-examined microscopically. The inclusion of the kinetic-energy term of the moving pair (which was completely neglected by Caroli and Maki) in the chemical potential results in a large Hall effect in the vortex state consistent with experiments on Nb-Ta alloys by Niessen et al. Furthermore it is shown that for a dirty superconductor the Hall angle of the vortex state in the zero induction limit reduces to a constant value independent of temperature.

Measurements are presented of the inelastic magnetic scattering of neutrons from RbMn${\mathrm{F}}_3$ in the vicinity of the critical point. The data are analyzed quantitatively in terms of the dynamic scaling proposal of Halperin and Hohenberg and provide strong confirmation of the theory.

Contrary to recent suggestions, cavity detuning per se does not modify the Josephson relation ${\omega }_J\mathrm{}\left(V\right)=2e\frac{V}{\hslash }$, although it can produce measurable differences between the electrostatic and electrochemical potentials in a Josephson junction.