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Showing 2006Show all

136 papers · 1 filter

cond-mat.mes-hall2006★ 15 cited

Anisotropic Decay Dynamics of Photoexcited Aligned Carbon Nanotube Bundles

Y. Hashimoto, Y. Murakami, S. Maruyama +1

We have performed polarization-dependent ultrafast pump-probe spectroscopy of a film of aligned single-walled carbon nanotube bundles. By taking into account imperfect nanotube ali…

astro-ph2006★ 524 cited

The ACS Survey of Galactic Globular Clusters. I. Overview and Clusters Without Previous HST Photometry

Ata Sarajedini, L. Bedin, B. Chaboyer +10

We present the first results of a large ACS Survey of Galactic globular clusters. This Hubble Space Telescope (HST) Treasury project is designed to obtain photometry with S/N > ~10…

hep-ex2006★ 16 cited

Measurement of the ppbar to ttbar production cross section at sqrt(s)=1.96 TeV in the fully hadronic decay channel

D0 Collaboration, V. Abazov

A measurement of the top quark pair production cross section in proton anti-proton collisions at an interaction energy of sqrt(s)=1.96 TeV is presented. This analysis uses 405 pb-1…

q-bio.PE2006★ 72 cited

Phase Diagrams of Quasispecies Theory with Recombination and Horizontal Gene Transfer

Jeong-Man Park, Michael W. Deem

We consider how transfer of genetic information between individuals influences the phase diagram and mean fitness of both the Eigen and the parallel, or Crow-Kimura, models of evol…

physics.atom-ph2006★ 146 cited

Ultracold Neutral Plasmas

T. C. Killian, T. Pattard, T. Pohl +1

Ultracold neutral plasmas, formed by photoionizing laser-cooled atoms near the ionization threshold, have electron temperatures in the 1-1000 kelvin range and ion temperatures from…

hep-ex2006★ 13 cited

Search for techniparticles in e +jets events at D0

D0 Collaboration, V. Abazov

We search for the technicolor process ppbar -> rho_T/omega_T ->W+pi_T in events containing one electron and two jets, in data corresponding to an integrated luminosity of 390 pb-1,…

cond-mat.soft2006★ 124 cited

Adaptive Resolution Simulation of Liquid Water

Matej Praprotnik, Luigi Delle Site, Kurt Kremer +2

We present a multiscale simulation of liquid water where a spatially adaptive molecular resolution procedure allows for changing on-the-fly from a coarse-grained to an all-atom rep…

hep-ex2006★ 9 cited

Search for single production of scalar leptoquarks in p\bar{p} collisions decaying into muons and quarks with the D0 detector

D0 Collaboration, V. Abazov

We report on a search for second generation leptoquarks LQ_2 which decay into a muon plus quark in p\bar{p} collisions at a center-of-mass energy of sqrt{s} = 1.96 TeV in the D0 de…

cond-mat.other2006★ 104 cited

Noncollinear Magnetism in Density Functional Calculations

Juan E. Peralta, Gustavo E. Scuseria, Michael J. Frisch

We generalize the treatment of the electronic spin degrees of freedom in density functional calculations to the case where the spin vector variables employed in the definition of t…

cond-mat.mes-hall2006★ 2 cited

Strong magnetic scattering from TiO adhesion layers

A. Trionfi, S. Lee, D. Natelson

Electronic phase coherence in normal metals is incredibly sensitive to magnetic scattering. As a result, the weak localization magnetoresistance and time-dependent universal conduc…

nucl-ex2006★ 161 cited

First Measurement of Beam-Recoil Observables Cx and Cz in Hyperon Photoproduction

R. Bradford, R. A. Schumacher, CLAS Collaboration

Spin transfer from circularly polarized real photons to recoiling hyperons has been measured for the reactions and . The data…

hep-ex2006★ 66 cited

Separated Structure Functions for the Exclusive Electroproduction of and Final States

P. Ambrozewicz, D. S. Carman, R. J. Feuerbach +4

We report measurements of the exclusive electroproduction of and final states from a proton target using the CLAS detector at the Thomas Jefferson National Accelera…

astro-ph2006

Simulating Poynting Flux Acceleration in the Laboratory with Colliding Laser Pulses

Edison Liang

We review recent PIC simulation results which show that double-sided irradiation of a thin over-dense plasma slab with ultra-intense laser pulses from both sides can lead to sustai…

cond-mat.stat-mech2006★ 93 cited

Spontaneous Symmetry Breaking in Two-Channel Asymmetric Exclusion Processes with Narrow Entrances

Ekaterina Pronina, Anatoly B. Kolomeisky

Multi-particle non-equilibrium dynamics in two-channel asymmetric exclusion processes with narrow entrances is investigated theoretically. Particles move on two parallel lattices i…

astro-ph2006★ 62 cited

Exploring Broadband GRB Behavior During gamma-ray Emission

S. A. Yost, H. F. Swan, E. S. Rykoff +44

The robotic ROTSE-III telescope network detected prompt optical emission contemporaneous with the gamma-ray emission of Swift events GRB051109A and GRB051111. Both datasets have co…

math.ST2006★ 4 cited

Optimal sampling strategies for multiscale stochastic processes

Vinay J. Ribeiro, Rudolf H. Riedi, Richard G. Baraniuk

In this paper, we determine which non-random sampling of fixed size gives the best linear predictor of the sum of a finite spatial population. We employ different multiscale superp…

astro-ph2006★ 4 cited

Topical Issues for Particle Acceleration Mechanisms in Astrophysical Shocks

Matthew G. Baring

Particle acceleration at plasma shocks appears to be ubiquitous in the universe, spanning systems in the heliosphere, supernova remnants, and relativistic jets in distant active ga…

quant-ph2006★ 27 cited

Properties of a coupled two species atom-heteronuclear molecule condensate

Lu Zhou, Weiping Zhang, Hong Y. Ling +2

We study the coherent association of a two-species atomic condensate into a condensate of heteronuclear diatomic molecules, using both a semiclassical treatment and a quantum mecha…

math.AG2006★ 46 cited

On Albanese torsors and the elementary obstruction

Olivier Wittenberg

We show that the elementary obstruction to the existence of 0-cycles of degree 1 on an arbitrary variety X (over an arbitrary field) can be expressed in terms of the Albanese 1-mot…

hep-ex2006★ 55 cited

Measurement of the ttbar production cross section in pbarp collisions at sqrt(s) = 1.96 TeV using secondary vertex b tagging

D0 Collaboration, V. Abazov

We report a new measurement of the ttbar production cross section in pbarp collisions at a center-of-mass energy of 1.96 TeV using events with one charged lepton (electron or muon)…

cond-mat.stat-mech2006★ 11 cited

Supersymmetric Langevin equation to explore free energy landscapes

Alessandro Mossa, Cecilia Clementi

The recently discovered supersymmetric generalizations of Langevin dynamics and Kramers equation can be utilized for the exploration of free energy landscapes of systems whose larg…

astro-ph2006★ 126 cited

Characterization of Gravitational Microlensing Planetary Host Stars

David P. Bennett, Jay Anderson, B. Scott Gaudi

The gravitational microlensing light curves that reveal the presence of extrasolar planets generally yield the planet-star mass ratio and separation in units of the Einstein ring r…

astro-ph2006★ 105 cited

Search for polarization from the prompt gamma-ray emission of GRB 041219a with SPI on INTEGRAL

E. Kalemci, S. E. Boggs, C. Kouveliotou +2

Measuring the polarization of the prompt gamma-ray emission from GRBs can significantly improve our understanding of both the GRB emission mechanisms, as well as the underlying eng…

hep-ex2006★ 92 cited

Measurement of the rare decay pi0 -> e+ e-

E. Abouzaid

The branching ratio of the rare decay pi0 -> e+ e- has been measured precisely, using the complete data set from the KTeV E799-II experiment at Fermilab. We observe 794 candidate p…