We report results from a measurement of the inclusive process $p+d\to X+d$ in the region $0.03<\mathrm{}\left|t\right|<0.12\mathrm{}$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$ and $5 \mathrm{Ge}{\mathrm{V}}^2<{M_X}^2\lesssim 0.11p_{\mathrm{lab}}$ for incident proton momenta from 150 to 400 GeV/c. We find that in this region, the differential cross section $\frac{d^2\sigma }{\mathrm{dt}d{M_X}^2}$ varies only slowly with energy, falls exponentially with $\mathrm{}\left|t\right|\mathrm{}$, and behaves to a good approximation as $\frac{1}{{M_X}^2}$. The measurement was performed at Fermilab by detecting slow-recoil deuterons from a deuterium-gas-jet target placed at the internal beam of the accelerator.

We have measured the polarization, analyzing power, and depolarization parameter for forward ${\Lambda }^0\text{'}\mathrm{s}$ produced with a 6-GeV/c polarized-proton beam at the Argonne National Laboratory zero-gradient synchrotron. We collected a sample of 15 281 ${\Lambda }^0$ production events with subsequent $p{\pi }^{-}$ decays. There is a clear difference between the polarization and analyzing power for events with Feynman scaling variable $x$ greater than 0.8. This is the first observation of this phenomenon at high energy.

Various light- and medium-mass nuclei have been bombarded with 150-, 230-, 600-, and 960-MeV protons. Prompt $\gamma$ rays were measured with a Ge(Li) detector. A large number of lines in the $\gamma$-energy spectra correspond to the de-excitation of the first levels of $4n$ nuclei ($N=Z$ even). The dependence of this effect on the incident energy and the mass of the target is studied. The data are compared with recent pion-bombardment results.

We report preliminary results of elastic $e-d$ scattering at large momentum transfer performed at the Stanford Linear Accelerator Center with use of two high-resolution spectrometers in coincidence. Our results are in sharp disagreement with the meson-exchange calculations, they are in rough agreement with the nonrelativistic potential models, and they are in agreement with the predictions of the quark dimensional-scaling model which pictures the deuteron as a bound state of six quarks at large momentum transfer.

The spectra of 146-MeV $\alpha$ particles scattered inelastically from ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ exhibit a giant-resonance-type structure between excitation energies of 15.9 and 27.3 MeV. The analysis of angular distributions shows its quadrupole nature and yields a strength exhausting about 65% of the isoscalar $E2\mathrm{}$ energy-weighted sum rule.

Several calculations suggest that the lowest triplet states of ozone lie near the dissociation limit. Using electron energy-loss spectroscopy, we have observed a broad feature beginning at 1.3 eV, with a maximum at 1.65-eV energy loss. This structure is present only under large momentum-transfer conditions, indicative of the excitation of optically forbidden states. Together with the calculations, these data demonstrate that one or more excited states of ozone exist which are stable against dissociation.

By replacing the $A$ and $B$ magnets of the conventional molecular-beam-resonance technique with laser optical-pumping regions, we have developed a method for the observation of hfs in a single molecular-vibration-rotation level of arbitrary $J$. We obtain for the electric quadrupole and spin-rotation constants of the $X{{}_{}{}^1{}_{}{}^{}\Sigma _{\mathrm{g}}^{}{}_{}{}^{}}^{+}$, $v^{\prime \prime }=0\mathrm{}$, $J^{\prime \prime }=28\mathrm{}$ level of ${\mathrm{Na}}_2$: $eqQ=-463.7\mathrm{}\pm 0.9$ kHz; $\mathrm{}\left|c\right|=0.17\mathrm{}\pm 0.03$ kHz. We also report the first observation of a spin-rotation transition.

A nonequilibrium molecular-dynamics method of computing the dynamical response is presented. It is applied to the mobility of a charged particle in a Lennard-Jones liquid and the results agree with those computed from the Green-Kubo formula and with experimental data on argon. A discussion is given of the linearity of the mechanical response. The linear-response term is evaluated explicitly by a perturbation formula and the character of the nonlinear terms is briefly considered.

Brillouin-scattering measurements on acoustoelectrically amplified flux are used to determine the room-temperature frequency dependence of the lattice attenuation of ultrasonic shear waves in CdS up to a frequency of 7 GHz. The results show clearly a transition from the Akhiezer $f^2$ regime to the Landau-Rumer $f^1$ regime. The transition frequency provides an estimate of about 35 psec for the average lifetime of the thermal phonons involved in the ultrasonic attenuation process.

Diffusion of ${\mathrm{Ag}}^{110m}$ radioactive tracer has been measured in amorphous Pd-19-at.%-Si specimens characterized by a Seeman-Bohlin x-ray diffractometer. The diffusion parameters in this metallic amorphous phase have been found to have a regime distinctly different from liquid and crystalline phases.

A new method, based on the observation of hysteresis effects at the first-order phase transition, has been used to study the behavior of dysprosium aluminum garnet near one of its tricritical points. The magnetization-temperature phase diagram and the exponents ${\beta }_u$, ${\delta }_{+}$, ${\delta }_{-}$, and ${\gamma }_u$ have been determined and found to be in good agreement with the present theory.

The simple connection between spin Faraday rotation and spin-flip-Raman-scattering (SFRS) cross section is used to deduce the SFRS cross section for donors in CdS from Faraday-rotation measurements. The Faraday rotation also reveals an antiferromagnetic exchange interaction between donors.

We first prove that $\Sigma \mathrm{}\left|e\right(V\left)\right|$, the sum of the negative energies of a single particle in a potential $V$, is bounded above by $\left(\frac{4}{15\pi }\right)\int {\mathrm{}\left|V\right|\mathrm{}}^{\frac{5}{2}}$. This, in turn, implies a lower bound for the kinetic energy of $N$ fermions of the form $\frac{3}{5}{\left(\frac{3\pi }{4}\right)}^{\frac{2}{3}}\int {\rho }^{\frac{5}{3}}$, where $\rho \mathrm{}\left(x\right)\mathrm{}$ is the one-particle density. From this, using the no-binding theorem of Thomas-Fermi theory, we present a short proof of the stability of matter with a reasonable constant for the bound.

The noise produced by thermodynamic fluctuations (e.g., in carrier number) is shown to diverge for ideal contact (spreading) resistors. For diffusion-controlled fluctuations the frequency spectrum is shown to be proportional to ${\omega }^{-1\mathrm{}}$ (i.e., $\frac{1}{f}$) for high frequencies. This behavior is shown to be approached by resistors whose surfaces have sharp corners. The relation to observed noise is briefly discussed.

We investigate the quantitative implications for deep inelastic neutrino scattering of a proposed additional $V+A$ charm-changing current $\overline{c}{\gamma }_{\mu }(1-{\gamma }_5)d$. Quark-parton-model spectrum-averaged predictions are compared with available $\nu N$ and $\overline{\nu }N$ $y$ distributions as obtained at Fermilab. Agreement is achieved with an effective charm threshold $W_{\mathrm{th}}=4\mathrm{}$ GeV. A characteristic feature is an enhanced sea contribution that can account for the anomaly in $\frac{d\sigma }{\mathrm{dy}}$ for $\overline{\nu }N$. Predictions for sum rules are significantly changed at high energy.

We report the results of new measurements and analysis of 42-MeV proton-proton bremsstrahlung cross sections. Comparison with the predictions of the Hamada-Johnston potential over proton polar-angle ranges from 16° to 40° is made and significant disagreement is observed.

Results are reported of a search for monoenergetic $\gamma$ rays with energies above 50 MeV from $\psi \mathrm{}\left(3684\right)\mathrm{}$ decay using large NaI(Tl) spectrometers. No clear evidence for emission of such radiation was found.

We show that by adding a $V+A$ heaviness-changing current to Harari's proposed current, the good results of Harari as well as of De Rújula, Georgi, and Glashow are retained. In addition, our proposal explains the observed $y$ anomaly in $\overline{\nu }$ interactions. Other consequences of the model are also discussed.

We present results from a study of high-momentum inclusive hadron production in electron-positron interactions at $\sqrt{s}=3.8\mathrm{} \mathrm{and} 4.8$ GeV. Comparison of the momentum spectra at these energies shows no scaling violation in the region $x(=\frac{E}{E_{\mathrm{beam}}})>\mathrm{}0.7\mathrm{}$. At $\sqrt{s}=4.8\mathrm{}$ GeV the $\frac{K}{\pi }$ ratio for hadrons with momenta >1.1 GeV/c is 0.27±0.08, and the average number of charged hadrons is 3.6±0.3 for those events which have at least one charged hadron with momentum greater than 1.1 GeV/c.

Evidence supporting the validity of a simple symmetry in hypernuclei, suggested ten years ago, is found in recently published data on ${}_{\Lambda }{}^{}{}_{}{}^{}{}_{}{}^9{}_{}{}^{}\mathrm{Be}$, ${}_{\Lambda }{}^{}{}_{}{}^{}{}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, and ${}_{\Lambda }{}^{}{}_{}{}^{}{}_{}{}^{16}{}_{}{}^{}\mathrm{O}$.