Volume 55, Issue 23

C. Baltay, M. Bregman, M. Hibbs, J. T. Liu, J. Okamitsu, A. C. Schaffer, K. Shastri, N. J. Baker, P. L. Connolly, S. A. Kahn, M. J. Murtagh, R. B. Palmer, N. P. Samios, M. Tanaka, E. B. Brucker, P. F. Jacques, M. Kalelkar, E. L. Koller, R. J. Plano, and P. E. Stamer

Phys. Rev. Lett. 55, 2543 (1985) - Published 2 December, 1985

Yukawa Couplings in Superstring Compactification

Andrew Strominger

Phys. Rev. Lett. 55, 2547 (1985) - Published 2 December, 1985

Measurement of $Σ^{-}$ Production Polarization and Magnetic Moment

Y. W. Wah, T. R. Cardello, P. S. Cooper, L. J. Teig, J. L. Thron, C. Ankenbrandt, J. P. Berge, A. E. Brenner, J. Butler, K. Doroba, J. Lach, P. Laurikainen, J. Marriner, E. McCliment, E. W. Anderson, and A. Breakstone

Phys. Rev. Lett. 55, 2551 (1985) - Published 2 December, 1985

Cross Sections for Monopole-Induced Proton Decay in SU(5)

W. Bernreuther and N. S. Craigie

Phys. Rev. Lett. 55, 2555 (1985) - Published 2 December, 1985

Atoms and Molecules

Low-Energy-Electron Attachment to Oxygen Clusters Produced by Nozzle Expansion

T. D. Märk, K. Leiter, W. Ritter, and A. Stamatovic

Phys. Rev. Lett. 55, 2559 (1985) - Published 2 December, 1985

New Concepts of Metallic Bonding Based on Valence-Bond Ideas

Mark H. McAdon and William A. Goddard, III

Phys. Rev. Lett. 55, 2563 (1985) - Published 2 December, 1985

Anticrossing Spectroscopy of Rydberg Atoms Using Blackbody Radiation

R. C. Stoneman and T. F. Gallagher

Phys. Rev. Lett. 55, 2567 (1985) - Published 2 December, 1985

Classical Phenomenology and Applications

Instabilities of a Homogeneously Broadened Laser

E. H. M. Hogenboom, W. Klische, C. O. Weiss, and A. Godone

Phys. Rev. Lett. 55, 2571 (1985) - Published 2 December, 1985

Pattern Selection near the Onset of Convection: The Eckhaus Instability

Mary Lowe and J. P. Gollub

Phys. Rev. Lett. 55, 2575 (1985) - Published 2 December, 1985

Fluids, Plasmas, and Electric Discharges

Observation of Large-Amplitude, Narrow-Band Density Fluctuations in the Interior Region of an Ohmic Tokamak Plasma

D. L. Brower, W. A. Peebles, and N. C. Luhmann, Jr.

Phys. Rev. Lett. 55, 2579 (1985) - Published 2 December, 1985

Inductance Effect of Runaways on Lower-Hybrid-Current Ramping

C. S. Liu, V. S. Chan, and Y. C. Lee

Phys. Rev. Lett. 55, 2583 (1985) - Published 2 December, 1985

Acceleration of Beam Ions during Major-Radius Compression in the Tokamak Fusion Test Reactor

K. L. Wong et al.

Phys. Rev. Lett. 55, 2587 (1985) - Published 2 December, 1985

Condensed Matter: Structure, Etc.

Sticking of Molecular Hydrogen on a Cold Cu(100) Surface

S. Andersson, L. Wilzén, and J. Harris

Phys. Rev. Lett. 55, 2591 (1985) - Published 2 December, 1985

Experimental Investigation of $β_{1}$ -H on W(100) Using High-Resolution Electron-Energy-Loss Spectroscopy: Bond Distances, Scattering Mechanisms, and Impact-Scattering Selection Rules

J. P. Woods and J. L. Erskine

Phys. Rev. Lett. 55, 2595 (1985) - Published 2 December, 1985

Condensed Matter: Electronic Properties, Etc.

Oxygen on Fe(100): An Initial-Oxidation Study by Spin-Polarized Auger Spectroscopy

R. Allenspach, M. Taborelli, and M. Landolt

Phys. Rev. Lett. 55, 2599 (1985) - Published 2 December, 1985

Three-Photon Spectroscopy of Exciton Polaritons in Alkali Halides

F. Beerwerth and D. Fröhlich

Phys. Rev. Lett. 55, 2603 (1985) - Published 2 December, 1985

Relation of Random and Competing Nonrandom Couplings for Spin-Glasses

Fritz Haake, Maciej Lewenstein, and Martin Wilkens

Phys. Rev. Lett. 55, 2606 (1985) - Published 2 December, 1985

Lifetime Enhancement of Two-Dimensional Excitons by the Quantum-Confined Stark Effect

H. -J. Polland, L. Schultheis, J. Kuhl, E. O. Göbel, and C. W. Tu

Phys. Rev. Lett. 55, 2610 (1985) - Published 2 December, 1985

Model for the $E_{2}^{'}$ Center in Alpha Quartz

Jayanta K. Rudra, W. Beall Fowler, and Frank J. Feigl

Phys. Rev. Lett. 55, 2614 (1985) - Published 2 December, 1985

Catalytic Promotion and Poisoning: All-Electron Local-Density-Functional Theory of CO on Ni(001) Surfaces Coadsorbed with K or S

E. Wimmer, C. L. Fu, and A. J. Freeman

Phys. Rev. Lett. 55, 2618 (1985) - Published 2 December, 1985

Geophysics, Astronomy, and Astrophysics

Galactic Antiprotons from Photinos

F. W. Stecker, S. Rudaz, and T. F. Walsh

Phys. Rev. Lett. 55, 2622 (1985) - Published 2 December, 1985

COMMENTS

Energy-Level Statistics of Integrable Quantum Systems

Mario Feingold

Phys. Rev. Lett. 55, 2626 (1985) - Published 2 December, 1985

ERRATA

Quantum Holonomy and the Chiral Gauge Anomaly

A. J. Niemi and G. W. Semenoff

Phys. Rev. Lett. 55, 2627 (1985) - Published 2 December, 1985

Non-Born-Oppenheimer Calculation of Electric Hyperpolarizabilities

David M. Bishop and Sasha A. Solunac

Phys. Rev. Lett. 55, 2627 (1985) - Published 2 December, 1985