Volume 88, Issue 19

13 May 2002

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On the Cover

Intensity map of inelastic neutron scattering from the body-centered-cubic phase of solid ⁴He showing a new optical phonon mode (the horizontal yellow-green band around 1.3 meV). A classical monoatomic cubic crystal can have only three acoustic phonon branches; the existence of this new branch in a ⁴He crystal is thought to be due to the large zero-point motion of its atoms.

From the article:

Observation of a New Excitation in bcc ${}^{4}H e$ by Inelastic Neutron Scattering
T. Markovich, E. Polturak, J. Bossy, and E. Farhi
Phys. Rev. Lett. 88, 195301 (2002)

HIGHLIGHTED ARTICLES

FEATURED IN PHYSICS

Local Simulation Algorithms for Coulomb Interactions

A. C. Maggs and V. Rossetto

Phys. Rev. Lett. 88, 196402 (2002) - Published 24 April, 2002

LETTERS

General Physics

Shell Structure and Pairing for Interacting Fermions in a Trap

Henning Heiselberg and Ben Mottelson

Phys. Rev. Lett. 88, 190401 (2002) - Published 24 April, 2002

Size of Two-Body Weakly Bound Objects: Short Versus Long Range Potentials

R. J. Lombard and C. Volpe

Phys. Rev. Lett. 88, 190402 (2002) - Published 25 April, 2002

Lorentz Invariance with an Invariant Energy Scale

João Magueijo and Lee Smolin

Phys. Rev. Lett. 88, 190403 (2002) - Published 26 April, 2002

Brownian Motion Exhibiting Absolute Negative Mobility

Ralf Eichhorn, Peter Reimann, and Peter Hänggi

Phys. Rev. Lett. 88, 190601 (2002) - Published 26 April, 2002

Conformal Invariance of the Ising Model in Three Dimensions

Youjin Deng and Henk W. J. Blöte

Phys. Rev. Lett. 88, 190602 (2002) - Published 30 April, 2002

Gravitation and Astrophysics

Dark Matter Spikes and Annihilation Radiation from the Galactic Center

David Merritt, Milos Milosavljević, Licia Verde, and Raul Jimenez

Phys. Rev. Lett. 88, 191301 (2002) - Published 30 April, 2002

Elementary Particles and Fields

Search for Leptoquark Pairs Decaying into $ν ν + j e t s$ in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8 TeV$

V. M. Abazov et al. (D0 Collaboration)

Phys. Rev. Lett. 88, 191801 (2002) - Published 23 April, 2002

Nuclear Physics

Exclusive Measurement of the $pp \to pp π^{+} π^{-}$ Reaction Near Threshold

W. Brodowski et al.

Phys. Rev. Lett. 88, 192301 (2002) - Published 25 April, 2002

Transverse-Mass Dependence of Two-Pion Correlations in $A u + A u$ Collisions at $\sqrt{s_{NN}} = 130 GeV$

K. Adcox et al. (PHENIX Collaboration)

Phys. Rev. Lett. 88, 192302 (2002) - Published 30 April, 2002

Measurement of Single Electrons and Implications for Charm Production in $A u + A u$ Collisions at $\sqrt{s_{NN}} = 130 GeV$

K. Adcox et al. (PHENIX Collaboration)

Phys. Rev. Lett. 88, 192303 (2002) - Published 30 April, 2002

Probing the High Density Behavior of the Nuclear Symmetry Energy with High Energy Heavy-Ion Collisions

Bao-An Li

Phys. Rev. Lett. 88, 192701 (2002) - Published 23 April, 2002

Atomic, Molecular, and Optical Physics

Threshold-Related Enhancement of the High-Energy Plateau in Above-Threshold Detachment

Bogdan Borca, M. V. Frolov, N. L. Manakov, and Anthony F. Starace

Phys. Rev. Lett. 88, 193001 (2002) - Published 24 April, 2002

$4 σ^{- 1}$ Inner Valence Photoionization Dynamics of NO Derived from Photoelectron-Photoion Angular Correlations

O. Geßner, Y. Hikosaka, B. Zimmermann, A. Hempelmann, R. R. Lucchese, J. H. D. Eland, P.-M. Guyon, and U. Becker

Phys. Rev. Lett. 88, 193002 (2002) - Published 30 April, 2002

Antiproton Stopping at Low Energies: Confirmation of Velocity-Proportional Stopping Power

S. P. Møller, A. Csete, T. Ichioka, H. Knudsen, U. I. Uggerhøj, and H. H. Andersen

Phys. Rev. Lett. 88, 193201 (2002) - Published 25 April, 2002

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

Time-Frequency Characterization of Femtosecond Extreme Ultraviolet Pulses

J. Norin, J. Mauritsson, A. Johansson, M. K. Raarup, S. Buil, A. Persson, O. Dühr, M. B. Gaarde, K. J. Schafer, U. Keller, C.-G. Wahlström, and A. L'Huillier

Phys. Rev. Lett. 88, 193901 (2002) - Published 25 April, 2002

Measurement of the Intensity-Dependent Atomic Dipole Phase of a High Harmonic by Frequency-Resolved Optical Gating

Taro Sekikawa, Tomotaka Katsura, Satoshi Miura, and Shuntaro Watanabe

Phys. Rev. Lett. 88, 193902 (2002) - Published 26 April, 2002

Thickness Fluctuations in Turbulent Soap Films

O. Greffier, Y. Amarouchene, and H. Kellay

Phys. Rev. Lett. 88, 194101 (2002) - Published 24 April, 2002

Segregation in Binary Mixtures under Gravity

J. T. Jenkins and D. K. Yoon

Phys. Rev. Lett. 88, 194301 (2002) - Published 24 April, 2002

Reaction and Concentration Dependent Diffusion Model

Philip Rosenau

Phys. Rev. Lett. 88, 194501 (2002) - Published 25 April, 2002

Plasma and Beam Physics

Extremely Low Vertical-Emittance Beam in the Accelerator Test Facility at KEK

K. Kubo et al. (ATF Collaboration)

Phys. Rev. Lett. 88, 194801 (2002) - Published 30 April, 2002

Particle Interaction Measurements in a Coulomb Crystal Using Caged-Particle Motion

R. A. Quinn and J. Goree

Phys. Rev. Lett. 88, 195001 (2002) - Published 24 April, 2002

rf Absorption and Ion Heating in Helicon Sources

J. L. Kline, E. E. Scime, R. F. Boivin, A. M. Keesee, X. Sun, and V. S. Mikhailenko

Phys. Rev. Lett. 88, 195002 (2002) - Published 24 April, 2002

Reduction of the Coherence Time of an Intense Laser Pulse Propagating through a Plasma

J. Fuchs, C. Labaune, H. Bandulet, P. Michel, S. Depierreux, and H. A. Baldis

Phys. Rev. Lett. 88, 195003 (2002) - Published 25 April, 2002

Size Scaling of Turbulent Transport in Magnetically Confined Plasmas

Z. Lin, S. Ethier, T. S. Hahm, and W. M. Tang

Phys. Rev. Lett. 88, 195004 (2002) - Published 29 April, 2002

Fractal Properties of Trivelpiece-Gould Waves in Periodic Plasma-Filled Waveguides

G. I. Zaginaylov, A. Grudiev, K. Schünemann, and P. V. Turbin

Phys. Rev. Lett. 88, 195005 (2002) - Published 29 April, 2002

Condensed Matter: Structure, etc.

Observation of a New Excitation in bcc ${}^{4}H e$ by Inelastic Neutron Scattering

T. Markovich, E. Polturak, J. Bossy, and E. Farhi

Phys. Rev. Lett. 88, 195301 (2002) - Published 30 April, 2002

Slater Ice Rules and H-Bond Dynamics in KDP-Type Systems

Raymond Kind, Paola Maria Cereghetti, Christian Anton Jeitziner, Boštjan Zalar, Janez Dolinšek, and Robert Blinc

Phys. Rev. Lett. 88, 195501 (2002) - Published 29 April, 2002

Interplay between Time-Temperature Transformation and the Liquid-Liquid Phase Transition in Water

Masako Yamada, Stefano Mossa, H. Eugene Stanley, and Francesco Sciortino

Phys. Rev. Lett. 88, 195701 (2002) - Published 26 April, 2002

Dewetting of Thin Polymer Films near the Glass Transition

F. Saulnier, E. Raphaël, and P.-G. de Gennes

Phys. Rev. Lett. 88, 196101 (2002) - Published 25 April, 2002

Core Level Photoemission Evidence of Frustrated Surface Molecules: A Germ of Disorder at the (111) Surface of $C_{60}$ before the Order-Disorder Surface Phase Transition

A. Goldoni, C. Cepek, R. Larciprete, L. Sangaletti, S. Pagliara, G. Paolucci, and M. Sancrotti

Phys. Rev. Lett. 88, 196102 (2002) - Published 26 April, 2002

Instability Driven Fragmentation of Nanoscale Fractal Islands

C. Bréchignac, Ph. Cahuzac, F. Carlier, C. Colliex, J. Leroux, A. Masson, B. Yoon, and Uzi Landman

Phys. Rev. Lett. 88, 196103 (2002) - Published 26 April, 2002

Reversible Structural Transition in Epitaxial Manganite Film

Q. Zhan, R. Yu, L. L. He, D. X. Li, J. Li, S. Y. Xu, and C. K. Ong

Phys. Rev. Lett. 88, 196104 (2002) - Published 29 April, 2002

Surface Stress Anisotropy of Ge(001)

M. T. Middel, H. J. W. Zandvliet, and Bene Poelsema

Phys. Rev. Lett. 88, 196105 (2002) - Published 29 April, 2002

Condensed Matter: Electronic Properties, etc.

Adsorbate-Induced Pinning of a Charge-Density Wave in a Quasi-1D Metallic Chains: Na on the $In / Si (111) - (4 \times 1)$ Surface

S. S. Lee, J. R. Ahn, N. D. Kim, J. H. Min, C. G. Hwang, J. W. Chung, H. W. Yeom, Serguei V. Ryjkov, and Shuji Hasegawa

Phys. Rev. Lett. 88, 196401 (2002) - Published 24 April, 2002