Volume 23, Issue 9

J. Ballam, G. B. Chadwick, R. Gearhart, Z. G. T. Guiragossian, P. R. Klein, A. Levy, M. Menke, J. J. Murray, P. Seyboth, G. Wolf, C. K. Sinclair, H. H. Bingham, W. B. Fretter, K. C. Moffeit, W. J. Podolsky, M. S. Rabin, A. H. Rosenfeld, and R. Windmolders

Phys. Rev. Lett. 23, 498 (1969) - Published 1 September, 1969

Possible Relation Between Lepton Nonconservation and $CP$ Nonconservation

H. Primakoff and D. H. Sharp

Phys. Rev. Lett. 23, 501 (1969) - Published 1 September, 1969

Veneziano Representation for Charged-Pion Photoproduction

M. Ahmad, Fayyazuddin, and Riazuddin

Phys. Rev. Lett. 23, 504 (1969) - Published 1 September, 1969

$\bar{p} p$ Backward Elastic Scattering from 0.7 to 2.16 GeV/c

J. K. Yoh, B. C. Barish, H. Nicholson, J. Pine, A. V. Tollestrup, A. S. Carroll, R. H. Phillips, C. Delorme, F. Lobkowicz, A. C. Melissinos, and Y. Nagashima

Phys. Rev. Lett. 23, 506 (1969) - Published 1 September, 1969

ERRATA

Theory of Itinerant Ferromagnets Exhibiting Localized-Moment Behavior above the Curie Point

S. Q. Wang, W. E. Evenson, and J. R. Schrieffer

Phys. Rev. Lett. 23, 510 (1969) - Published 1 September, 1969

Three-Body Partial-Wave Analysis for the Final-State Scattering of ( $π^{-}$ , $NN$ ) from ${}^{12}C$ and ${}^{16}O$

H. J. Weber

Phys. Rev. Lett. 23, 510 (1969) - Published 1 September, 1969

Physical Review Letters

Volume 23, Issue 9

LETTERS

Many-Body Perturbation Theory Applied to Molecules

Two-Frequency Hyperfine Transitions in Atomic Deuterium

Dynamic Proton Polarization in Butanol Water Below 1 K

Persistent Metastable States and the Inhibited Scintillation of He II

Heat Capacity at Constant Pressure near the Superfluid Transition in ${He}^{4}$

Size Effects in Quasiparticle Lifetimes and Phonon Generation in Superconductors

Lithium-Boron Ion Pairing in Silicon

Magnon-Magnon Interactions in Doped Antiferromagnets

Lorenz-Function Enhancement Due to Inelastic Processes near the Néel Point of Chromium

Temperature Dependence of the Width and $g$ Factor of a Purely Electronic Optical Transition in Mn $F_{2}$

Cohesive Energies of Tetrahedrally Coordinated Crystals

Resonating-Bond Theory of Tetrahedrally Coordinated Crystals

Coulomb Energies and the Excess Neutron Distribution from the Study of Isobaric Analog Resonances

Coulomb Excitation of the Collective Septuplet at 2.6 MeV in ${}^{209}{Bi}$

Observation of "Peripheral" Backward Multipion Production at 2.15 BeV/c

X-Ray Transition Radiation Applied to the Detection of Superhigh-Energy Particles

X-Ray Transition Radiation Applied to the Detection of Superhigh-Energy Particles

Total and Partial Photoproduction Cross Sections at 1.44, 2.8, and 4.7 GeV