Volume 50, Issue 6

M. Akemoto, K. Baba, I. Endo, H. Himemiya, K. Inoue, T. Kawamoto, Y. Maeda, T. Ohsugi, R. Ohtani, Y. Sumi, T. Takeshita, S. Uehara, T. Umeda, and T. Maki

Phys. Rev. Lett. 50, 400 (1983) - Published 7 February, 1983

Discovery of Beta-Delayed Two-Proton Radioactivity: ${}^{22}{Al}$

M. D. Cable, J. Honkanen, R. F. Parry, S. H. Zhou, Z. Y. Zhou, and Joseph Cerny

Phys. Rev. Lett. 50, 404 (1983) - Published 7 February, 1983

Are Solitons Already Seen in Heavy-Ion Reactions?

S. Raha and R. M. Weiner

Phys. Rev. Lett. 50, 407 (1983) - Published 7 February, 1983

Rotational Inertia of Nuclei

M. A. Deleplanque, H. J. Körner, H. Kluge, A. O. Macchiavelli, N. Bendjaballah, R. M. Diamond, and F. S. Stephens

Phys. Rev. Lett. 50, 409 (1983) - Published 7 February, 1983

Measurement of the ${}^{7}{Be} (p, γ) {}^{8}B$ Reaction Cross Section at Low Energies

B. W. Filippone, A. J. Elwyn, C. N. Davids, and D. D. Koetke

Phys. Rev. Lett. 50, 412 (1983) - Published 7 February, 1983

Atoms and Molecules

Photon Spectrum in Laser-Induced Autoionization

Maciej Lewenstein, Joseph W. Haus, and Kazimierz Rza̧zdot;ewski

Phys. Rev. Lett. 50, 417 (1983) - Published 7 February, 1983

Fluids, Plasmas, and Electric Discharges

Time-Resolved Thomson-Scattering Measurements of Ion Fluctuations Driven by Stimulated Brillouin Scattering

R. Giles and A. A. Offenberger

Phys. Rev. Lett. 50, 421 (1983) - Published 7 February, 1983

Condensed Matter: Structure, Etc.

Solidification and Superfluidity of ${}^{4}{He}$ in Porous Vycor Glass

J. R. Beamish, A. Hikata, L. Tell, and C. Elbaum

Phys. Rev. Lett. 50, 425 (1983) - Published 7 February, 1983

Formation of Ultrathin Single-Crystal Silicide Films on Si: Surface and Interfacial Stabilization of Si-Ni ${Si}_{2}$ Epitaxial Structures

R. T. Tung, J. M. Gibson, and J. M. Poate

Phys. Rev. Lett. 50, 429 (1983) - Published 7 February, 1983

Thermal Expansion of Amorphous ${Pd}_{0.775}$ ${Si}_{0.165}$ ${Cu}_{0.06}$

W. Kaspers, R. Pott, D. M. Herlach, and H. v. Löhneysen

Phys. Rev. Lett. 50, 433 (1983) - Published 7 February, 1983

Condensed Matter: Electronic Properties, Etc.

Picosecond Induced Absorption in CuCl: A New Approach to the Determination of Additional Boundary Conditions

Y. Segawa, Y. Aoyagi, S. Komuro, and S. Namba

Phys. Rev. Lett. 50, 436 (1983) - Published 7 February, 1983

Continuum Quantum Field Theory for a Linearly Conjugated Diatomic Polymer with Fermion Fractionization

R. Jackiw and G. Semenoff

Phys. Rev. Lett. 50, 439 (1983) - Published 7 February, 1983

Observation of "Intrinsic" Surface States at the Ti $O_{2}$ —Aqueous-Electrolyte Interface by Sub—Band-Gap Electroreflectance Spectroscopy

Withana Siripala and Micha Tomkiewicz

Phys. Rev. Lett. 50, 443 (1983) - Published 7 February, 1983

Probing the Local Density of States of Metal Surfaces by Deexcitation of Metastable Noble-Gas Atoms

W. Sesselmann, H. Conrad, G. Ertl, J. Küppers, B. Woratschek, and H. Haberland

Phys. Rev. Lett. 50, 446 (1983) - Published 7 February, 1983

$\frac{1}{f}$ Noise in Platinum Films and Ultrathin Platinum Wires: Evidence for a Common, Bulk Origin

D. M. Fleetwood, J. T. Masden, and N. Giordano

Phys. Rev. Lett. 50, 450 (1983) - Published 7 February, 1983

Time-Resolved Reflectivity Measurements of Femtosecond-Optical-Pulse-Induced Phase Transitions in Silicon

C. V. Shank, R. Yen, and C. Hirlimann

Phys. Rev. Lett. 50, 454 (1983) - Published 7 February, 1983

COMMENTS

Comment on "Fractional Quantum Numbers on Solitons"

Hidenaga Yamagishi

Phys. Rev. Lett. 50, 458 (1983) - Published 7 February, 1983

Physical Review Letters

Volume 50, Issue 6

LETTERS

General Physics

Propagating Pattern Selection

Elementary Particles and Fields

Upper Bound on Gauge-Fermion Masses

Analysis of $e^{+} e^{-}$ Charged-Particle Inclusive Cross Section Including the Higher-Order Correction of Quantum Chromodynamics

Deconfinement and Chiral Symmetry Restoration at Finite Temperatures in SU(2) and SU(3) Gauge Theories

Continuum Limit of Supersymmetric Field Theories on a Lattice

Nuclei

Confirmation of Dip-Bump Structure in Backward $π^{-} - d$ Elastic Scattering: Possible Evidence for Dibaryon Resonances