Volume 42, Issue 24

B. G. Gibbard, L. A. Ahrens, K. Berkelman, D. G. Cassel, C. T. Day, D. J. Harding, D. L. Hartill, J. W. Humphrey, T. J. Killian, J. S. Klinger, J. T. Linnemann, E. A. Treadwell, and D. H. White

Phys. Rev. Lett. 42, 1593 (1979) - Published 11 June, 1979

Nuclei

Quadrupole Moment of the 200-ns Fission Isomer in ${}^{238}U$

G. Ulfert, V. Metag, D. Habs, and H. J. Specht

Phys. Rev. Lett. 42, 1596 (1979) - Published 11 June, 1979

Incomplete Fusion in ${}^{12}C$ + ${}^{160}{Gd}$ Collisions Interpreted in Terms of a Generalized Concept of Critical Angular Momentum

K. Siwek-Wilczyńska, E. H. du Marchie van Voorthuysen, J. van Popta, R. H. Siemssen, and J. Wilczyński

Phys. Rev. Lett. 42, 1599 (1979) - Published 11 June, 1979

Atoms and Molecules

Polarization of Photoelectrons Ejected by Unpolarized Light from Xenon Atoms

U. Heinzmann, G. Schönhense, and J. Kessler

Phys. Rev. Lett. 42, 1603 (1979) - Published 11 June, 1979

Density-Sensitive Dielectronic Satellite Lines in Microballon Neon Spectra

John F. Seely

Phys. Rev. Lett. 42, 1606 (1979) - Published 11 June, 1979

Saturation and Stark Splitting of Resonant Transitions in Strong Chaotic Fields of Arbitrary Bandwidth

A. T. Georges, P. Lambropoulos, and P. Zoller

Phys. Rev. Lett. 42, 1609 (1979) - Published 11 June, 1979

Theory of Pure Rotational Transitions in Doubly Degenerate Torsional States of Ethane

Arieh Rosenberg and Joel Susskind

Phys. Rev. Lett. 42, 1613 (1979) - Published 11 June, 1979

Classical Phenomenology and Applications

$m = 1$ Cyclotron-Mode Klystron Instability

John G. Siambis

Phys. Rev. Lett. 42, 1617 (1979) - Published 11 June, 1979

Fluids, Plasmas, and Electric Discharges

Alfvén Resonance Effects on Magnetosonic Modes in Large Tokamaks

C. F. F. Karney, F. W. Perkins, and Y. -C. Sun

Phys. Rev. Lett. 42, 1621 (1979) - Published 11 June, 1979

Comparative Reflectance Measurements on Laser-Produced Plasmas at 1.06 and 0.53 μm

A. G. M. Maaswinkel, K. Eidmann, and R. Sigel

Phys. Rev. Lett. 42, 1625 (1979) - Published 11 June, 1979

Goodness of Ergodic Adiabatic Invariants

Edward Ott

Phys. Rev. Lett. 42, 1628 (1979) - Published 11 June, 1979

Condensed Matter: Structure, Etc.

Evidence for an Orientationally Ordered Two-Dimensional Fluid Phase from Molecular-Dynamics Calculations

D. Frenkel and J. P. McTague

Phys. Rev. Lett. 42, 1632 (1979) - Published 11 June, 1979

Direct Observation of Charge-Density Waves by Molecular-Beam Diffraction

G. Boato, P. Cantini, and R. Colella

Phys. Rev. Lett. 42, 1635 (1979) - Published 11 June, 1979

Corrections to Dynamic Scaling for the Lambda Transition in Liquid Helium

Richard A. Ferrell and Jayanta K. Bhattacharjee

Phys. Rev. Lett. 42, 1638 (1979) - Published 11 June, 1979

Condensed Matter: Electronic Properties, Etc.

Brillouin Scattering Efficiencies of Exciton Polaritons and the Additional Boundary Conditions in CdS

Peter Y. Yu and F. Evangelisti

Phys. Rev. Lett. 42, 1642 (1979) - Published 11 June, 1979

Geophysics, Astronomy, and Astrophysics

Production of Fluctuations in the Early Universe by the Quark-Nucleon Phase Transition

Gordon Lasher

Phys. Rev. Lett. 42, 1646 (1979) - Published 11 June, 1979

ANNOUNCEMENT

Cumulative author Index

Phys. Rev. Lett. 42, 1649 (1979) - Published 11 June, 1979

Physical Review Letters

Volume 42, Issue 24

LETTERS

General Physics

New Measurement of the Proton Gyromagnetic Ratio and a Derived Value of the Fine-Structure Constant Accurate to a Part in $10^{7}$

Aharonov-Bohm Effect from the "Hydrodynamical" Viewpoint

New Approach to Perturbation Theory

Elementary Particles and Fields

Constraints on Weak-Current Angles of the Six-Quark Model from the $K^{0} - {\bar{K}}^{0}$ System

Bounds on Quark Mixing Angles in the Standard Six-Quark Model

Cross Sections and Possible Resonances in $p \bar{p}$ Electroproduction