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ARTICLES

Articles

•	Relaxation and frequency shifts in the ground state of Rb85 Jacques Vanier, Jean-F. Simard, and Jean-S. Boulanger pp. 1031-1040 [View Page Images , PDF (1886 kB), or Buy this Article (Use Article Pack) ]

•	Exchange corrections of K x-ray emission rates James H. Scofield pp. 1041-1049 [View Page Images , PDF (1376 kB), or Buy this Article (Use Article Pack) ]

•	Effect of correlations between absorbed and emitted frequencies on the transport of resonance radiation M. G. Payne, J. E. Talmage, G. S. Hurst, and E. B. Wagner pp. 1050-1069 [View Page Images , PDF (3707 kB), or Buy this Article (Use Article Pack) ]

•	Widths of atomic M-shell vacancy states and quasiatomic aspects of radiationless transitions in solids Lo I Yin, Isidore Adler, Tung Tsang, Mau Hsiung Chen, Douglas A. Ringers, and Bernd Crasemann pp. 1070-1080 [View Page Images , PDF (1968 kB), or Buy this Article (Use Article Pack) ]

•	Third-order Stark effect: An operator approach Wu-yang Tsai pp. 1081-1086 [View Page Images , PDF (744 kB), or Buy this Article (Use Article Pack) ]

•	Mean values of powers of the radius for hydrogenic electron orbits Kjell Bockasten pp. 1087-1089 [View Page Images , PDF (323 kB), or Buy this Article (Use Article Pack) ]

•	Anomalous multiplet-splitting intensity ratios in K-level x-ray photoemission spectra of NO and O2 P. S. Bagus, M. Schrenk, D. W. Davis, and D. A. Shirley pp. 1090-1096 [View Page Images , PDF (1362 kB), or Buy this Article (Use Article Pack) ]

•	Hyperfine structure in the metastable D states of atomic barium Stephen G. Schmelling pp. 1097-1102 [View Page Images , PDF (1124 kB), or Buy this Article (Use Article Pack) ]

•	Semiclassical shape of satellite bands: Application to CsAr K. M. Sando pp. 1103-1107 [View Page Images , PDF (954 kB), or Buy this Article (Use Article Pack) ]

•	Investigation of the influence of electron-electron correlation effects on the quadrupole antishielding factor of positive ions S. N. Ray, Taesul Lee, T. P. Das, and R. M. Sternheimer pp. 1108-1111 [View Page Images , PDF (681 kB), or Buy this Article (Use Article Pack) ]

•	Lifetime and binding energy of the metastable (1s2s2p)4p°5 / 2 state in S13+ D. J. Pegg, H. H. Haselton, P. M. Griffin, R. Laubert, J. R. Mowat, R. Peterson, and I. A. Sellin pp. 1112-1114 [View Page Images , PDF (483 kB), or Buy this Article (Use Article Pack) ]

•	Energy spectra of collisionally produced H- autodetaching states J. S. Risley, A. K. Edwards, and R. Geballe pp. 1115-1129 [View Page Images , PDF (2745 kB), or Buy this Article (Use Article Pack) ]

•	Elastic scattering of electrons from N2 T. Sawada, P. S. Ganas, and A. E. Green pp. 1130-1135 [View Page Images , PDF (1069 kB), or Buy this Article (Use Article Pack) ]

•	Semiclassical collision theory within the Feynman path-integral formalism. II. Application to vibrational excitation A. P. Penner and R. Wallace pp. 1136-1142 [View Page Images , PDF (1436 kB), or Buy this Article (Use Article Pack) ]

•	Measurement of the photoelectric cross section of H2 at 5.4 and 8.4 keV Bernd Crasemann, Paul E. Koblas, Ta-Cheng Wang, Harvey E. Birdseye, and Mau Hsiung Chen pp. 1143-1151 [View Page Images , PDF (1657 kB) , Figure Images, or Buy this Article (Use Article Pack) ]

•	Excitation of N2+ ions by collisions with rare-gas atoms H. Bregman-Reisler and J. P. Doering pp. 1152-1160 [View Page Images , PDF (1774 kB), or Buy this Article (Use Article Pack) ]

•	Binary-encounter stopping cross sections. I. Basic theory and calculations for helium in hydrogen James H. Harberger, Robert E. Johnson, and John W. Boring pp. 1161-1171 [View Page Images , PDF (2129 kB), or Buy this Article (Use Article Pack) ]

•	Binary-encounter stopping cross sections. II. Calculations for helium in multielectron atoms, target Z dependence James H. Harberger, Robert E. Johnson, and John W. Boring pp. 1172-1181 [View Page Images , PDF (1860 kB), or Buy this Article (Use Article Pack) ]

•	Multiphoton excitation and ionization of atomic cesium with a tunable dye laser D. Popescu, C. B. Collins, B. W. Johnson, and Iovitzu Popescu pp. 1182-1187 [View Page Images , PDF (1156 kB), or Buy this Article (Use Article Pack) ]

•	Use of consistent phase conventions in calculating angular distributions of scattering cross sections and application to electron-hydrogen-atom inelastic scattering Maynard A. Brandt and Donald G. Truhlar pp. 1188-1194 [View Page Images , PDF (1222 kB), or Buy this Article (Use Article Pack) ]

•	Excitation of metastable argon and helium atoms by electron impact Walter L. Borst pp. 1195-1200 [View Page Images , PDF (1209 kB), or Buy this Article (Use Article Pack) ]

•	New L2 approach to quantum scattering: Theory Eric J. Heller and Hashim A. Yamani pp. 1201-1208 [View Page Images , PDF (1275 kB), or Buy this Article (Use Article Pack) ]

•	J-matrix method: Application to S-wave electron-hydrogen scattering Eric J. Heller and Hashim A. Yamani pp. 1209-1214 [View Page Images , PDF (935 kB), or Buy this Article (Use Article Pack) ]

•	Correlated scattering of protons impinging as hydrogen molecules Jene Golovchenko and Erik Laegsgaard pp. 1215-1219 [View Page Images , PDF (826 kB), or Buy this Article (Use Article Pack) ]

•	Elastic scattering of electrons with hydrogen atoms using the polarized Glauber approximation K. C. Mathur pp. 1220-1224 [View Page Images , PDF (718 kB), or Buy this Article (Use Article Pack) ]

•	Nitrogen total cross section for electrons below 2.0 eV George C. Baldwin pp. 1225-1229 [View Page Images , PDF (920 kB), or Buy this Article (Use Article Pack) ]

•	Impulse approximation for three-dimensional inelastic atom—diatomic-molecule collisions Alexander Bogan pp. 1230-1241 [View Page Images , PDF (1640 kB) , Figure Images, or Buy this Article (Use Article Pack) ]

•	Formation of metastable hydrogen atoms by charge exchange of protons in cesium vapor Vu Ngoc Tuan, G. Gautherin, and A. S. Schlachter pp. 1242-1251 [View Page Images , PDF (1983 kB), or Buy this Article (Use Article Pack) ]

•	Ergodic properties of an anharmonic two-dimensional crystal P. Bocchieri and F. Valz-Gris pp. 1252-1256 [View Page Images , PDF (636 kB), or Buy this Article (Use Article Pack) ]

•	Spontaneous emission by two atoms with different resonance frequencies M. T. Raiford pp. 1257-1265 [View Page Images , PDF (1349 kB), or Buy this Article (Use Article Pack) ]

•	Persistent correlations in diffusion James W. Dufty and James A. McLennan pp. 1266-1272 [View Page Images , PDF (955 kB), or Buy this Article (Use Article Pack) ]

•	Condensation of photons in a hot plasma G. Chapline, G. Cooper, and S. Slutz pp. 1273-1277 [View Page Images , PDF (843 kB), or Buy this Article (Use Article Pack) ]

•	Correlation length, finite-geometry effects, and universality in pressurized superfluid helium near Tλ Gary G. Ihas and F. Pobell pp. 1278-1296 [View Page Images , PDF (3930 kB), or Buy this Article (Use Article Pack) ]

•	Lifetime of surface-state electrons on liquid 4He. I. Free electron Richard S. Crandall pp. 1297-1304 [View Page Images , PDF (1515 kB), or Buy this Article (Use Article Pack) ]

•	Self-generated magnetic fields associated with a laser-produced plasma L. L. Mckee, R. S. Bird, and F. Schwirzke pp. 1305-1311 [View Page Images , PDF (1181 kB), or Buy this Article (Use Article Pack) ]

•	Superfluid helium film below 1 K: Thickness, flow rate, and influence of He3 D. B. Crum, D. O. Edwards, and R. E. Sarwinski pp. 1312-1318 [View Page Images , PDF (1273 kB), or Buy this Article (Use Article Pack) ]

•	Nonlinear effects in optical pumping of atoms by a high-intensity multimode gas laser. II. Exact theory for small angular momenta Martial Ducloy pp. 1319-1342 [View Page Images , PDF (3793 kB), or Buy this Article (Use Article Pack) ]

•	Time-dependent projection-operator approach to master equations for coupled systems C. R. Willis and R. H. Picard pp. 1343-1358 [View Page Images , PDF (2762 kB), or Buy this Article (Use Article Pack) ]

•	Molecular-dynamics verification of a final velocity distribution of a nonergodic system of hard parallel squares Hwaling H. Szu, John Bdzil, C. Carlier, and H. L. Frisch pp. 1359-1370 [View Page Images , PDF (1794 kB), or Buy this Article (Use Article Pack) ]

•	New thermodynamic variables for a nonequilibrium system Aaron B. Corbet pp. 1371-1384 [View Page Images , PDF (2889 kB), or Buy this Article (Use Article Pack) ]

•	Cooperative modes in a generalized nonlinear viscoelastic medium. I. Influence of nonlinearities upon the frequencies of cooperative modes R. Paul and D. R. Truax pp. 1385-1396 [View Page Images , PDF (1696 kB), or Buy this Article (Use Article Pack) ]

•	Cooperative modes in a generalized nonlinear viscoelastic medium. II. Influence of nonlinearities upon sonic absorption and propagation R. Paul pp. 1397-1402 [View Page Images , PDF (716 kB), or Buy this Article (Use Article Pack) ]

•	Analysis of self-trapping using the wave equation with high-order nonlinear electric permittivity A. H. Piekara, J. S. Moore, and M. S. Feld pp. 1403-1407 [View Page Images , PDF (711 kB), or Buy this Article (Use Article Pack) ]

•	Long-wavelength-phonon spectrum in liquid 4He Felix J. Lee and Deok Kyo Lee pp. 1408-1411 [View Page Images , PDF (560 kB), or Buy this Article (Use Article Pack) ]

•	Hydrodynamics of superfluid helium below 0.6 °K. III. Propagation of temperature waves Humphrey J. Maris pp. 1412-1426 [View Page Images , PDF (2676 kB), or Buy this Article (Use Article Pack) ]

•	Raman-limited beam diameters in the self-focusing of laser light O. Rahn and M. Maier pp. 1427-1437 [View Page Images , PDF (2178 kB), or Buy this Article (Use Article Pack) ]

•	Average energy expended per ion pair in liquid argon M. Miyajima, T. Takahashi, S. Konno, T. Hamada, S. Kubota, H. Shibamura, and T. Doke pp. 1438-1443 [View Page Images , PDF (1150 kB), or Buy this Article (Use Article Pack) ]

COMMENTS

•	Influence of phonon dispersion on the velocity of second sound in He II James S. Brooks and Russell J. Donnelly pp. 1444-1445 [View Page Images , PDF (336 kB), or Buy this Article (Use Article Pack) ]

•	Validity and meaning of the momentum-translation approximation for bound states in a radiation field Alain Decoster pp. 1446-1449 [View Page Images , PDF (596 kB), or Buy this Article (Use Article Pack) ]

ARTICLES

Articles

•	Comments on the state of an electron-hydrogen-atom system in an intense electromagnetic field B. Fabre pp. 1450-1451 [View Page Images , PDF (277 kB), or Buy this Article (Use Article Pack) ]

COMMENTS

•	Solid 3He magnetism: A review of experiments R. A. Guyer pp. 1452-1455 [View Page Images , PDF (674 kB), or Buy this Article (Use Article Pack) ]

•	Third-harmonic coefficient of Li+ R. Klingbeil, V. G. Kaveeshwar, and R. P. Hurst pp. 1456-1457 [View Page Images , PDF (284 kB), or Buy this Article (Use Article Pack) ]

•	Molecular-orbital x rays William Lichten pp. 1458-1461 [View Page Images , PDF (674 kB), or Buy this Article (Use Article Pack) ]

•	Comments on the distorted-wave Born-approximation cross sections for the 21P excitation of He Yong-Ki Kim pp. 1462-1464 [View Page Images , PDF (523 kB), or Buy this Article (Use Article Pack) ]

•	NMR frequency in superfluid phases of 3He C. M. Varma and N. R. Werthamer pp. 1465-1467 [View Page Images , PDF (602 kB), or Buy this Article (Use Article Pack) ]

•	Comment on the radiative level shift in the neoclassical radiation theory R. van den Doel and J. J. Kokkedee pp. 1468-1469 [View Page Images , PDF (439 kB), or Buy this Article (Use Article Pack) ]

•	Observation of K x rays from highly ionized states of neon produced by 40-MeV Cl+7, Cl+11, and Cl+13 beams M. D. Brown, J. R. Macdonald, Patrick Richard, J. R. Mowat, and I. A. Sellin pp. 1470-1474 [View Page Images , PDF (959 kB), or Buy this Article (Use Article Pack) ]

•	Is the onset of superfluidity connected to "connectivity"? Marvin Chester and L. C. Yang pp. 1475-1478 [View Page Images , PDF (786 kB), or Buy this Article (Use Article Pack) ]

ERRATA

•	Erratum: Coherent Raman Beats Richard G. Brewer and E. L. Hahn pp. 1479 [View Page Images or PDF (28 kB) ]