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cond-mat.stat-mech2001★ 61 cited

Lattice Models of Ionic Systems

Vladimir Kobelev, Anatoly B. Kolomeisky, Michael E. Fisher

A theoretical analysis of Coulomb systems on lattices in general dimensions is presented. The thermodynamics is developed using Debye-Huckel theory with ion-pairing and dipole-ion…

hep-ex2001★ 8 cited

Search for R-parity Violating Supersymmetry in Dimuon and Four-Jets Channel

D0 collaboration, V. M. Abazov etal

We present results of a search for R-parity-violating decay of the neutralino chi_1^0, taken to be the Lightest Supersymmetric Particle. It is assumed that this decay proceeds thro…

hep-ex2001★ 12 cited

Search for Leptoquark Pairs Decaying to neutrino neutrino + jets in p anti-p Collisions at s**(1/2)=1.8 TeV

D0 Collaboration, V. M. Abazov

We present the results of a search for leptoquark (LQ) pairs in (85.2 +- 3.7) pb^{-1} of p anti-p collider data collected by the D0 experiment at the Fermilab Tevatron. We observe…

physics.bio-ph2001★ 51 cited

Phase Transition of DNA-Linked Gold Nanoparticle

Ching-Hwa Kiang

Melting and hybridization of DNA-capped gold nanoparticle networks are investigated with optical absorption spectroscopy. Single-stranded, 12-base DNA-capped gold nanoparticles are…

hep-ex2001★ 21 cited

First Measurement of the Double Spin Asymmetry in in the Resonance Region

CLAS Collaboration, R. De Vita

The double spin asymmetry in the reaction has been measured for the first time in the resonance region for four-momentum transfer GeV$^2…

astro-ph2001★ 21 cited

SCUBA sub-millimeter observations of gamma-ray bursters: II. GRB 991208, 991216, 000301C, 000630, 000911, 000926

I. A. Smith, R. P. J. Tilanus, R. A. M. J. Wijers +4

We discuss our ongoing program of Target of Opportunity sub-millimeter observations of gamma-ray bursts (GRBs) using the Sub-millimetre Common-User Bolometer Array (SCUBA) on the J…

astro-ph2001★ 17 cited

Transient Absorption Features in GRBs and Their Implications for GRB Progenitors

M. Boettcher, C. L. Fryer, C. D. Dermer

The recent detection of a transient absorption feature in the prompt emission of GRB 990705 has sparked multiple attempts to fit this feature in terms of photoelectric absorption o…

cond-mat.mes-hall2001★ 14 cited

Charge Transport Processes in a Superconducting Single-Electron Transistor Coupled to a Microstrip Transmission Line

W. Lu, K. D. Maranowski, A. J. Rimberg

We have investigated charge transport processes in a superconducting single-electron transistor (S-SET) fabricated in close proximity to a two-dimensional electron gas (2DEG) in a…

nucl-ex2001★ 93 cited

Measurement of inclusive antiprotons from Au+Au collisions at 130 GeV

STAR Collaboration

We report the first measurement of inclusive antiproton production at mid-rapidity in Au+Au collisions at 130 GeV by the STAR experiment at RHIC. The antiproton transverse mass dis…

hep-ex2001★ 205 cited

Dependence of Quadrupole Strength in the Transition

CLAS Collaboration, K. Joo, L. C. Smith

Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual tensor forces between quarks or distortions from the pion cloud. Sensitivity to qua…

astro-ph2001★ 75 cited

Dust In I Zw 18 From Hubble Space Telescope Narrow Band Imaging

John M. Cannon, Evan D. Skillman, Donald R. Garnett +1

We present new WFPC2 narrow band imaging of the blue compact dwarf galaxy I Zw 18, which is host to the lowest-metallicity HII regions known. Images at H-alpha and H-beta are combi…

hep-ph2001★ 7 cited

Are There Pressure Waves in the Vacuum?

P. M. Stevenson

The Higgs vacuum is a kind of medium. In any medium one generally expects sound waves for sufficiently long wavelengths (>> mean free path). I briefly describe how the broken-symme…

astro-ph2001★ 58 cited

Synchrotron and Synchrotron Self-Compton Spectral Signatures and Blazar Emission Models

James Chiang, Markus Boettcher

We find that energy losses due to synchrotron self-Compton (SSC) emission in blazar jets can produce distinctive signatures in the time-averaged synchrotron and SSC spectra of thes…

hep-ex2001★ 35 cited

The Inclusive Jet Cross Section in ppbar Collisions at sqrt{s}=1.8 TeV using the kT Algorithm

D0 Collaboration, V. M. Abazov

The central inclusive jet cross section has been measured using a successive-combination algorithm for reconstruction of jets. The measurement uses 87.3 pb^{-1} of data collected w…

cond-mat.str-el2001★ 85 cited

Critical local-moment fluctuations, anomalous exponents, and omega/T scaling in the Kondo problem with a pseudogap

Kevin Ingersent, Qimiao Si

Experiments in heavy-fermion metals and related theoretical work suggest that critical local-moment fluctuations can play an important role near a zero-temperature phase transition…

astro-ph2001★ 5 cited

Radiation from collision-dominated relativistic pair fireballs

M. Boettcher, R. Schlickeiser, A. Marra

It is generally accepted that gamma-ray bursts (GRBs) are initiated by a relativistic pair fireball, converting its internal energy into kinetic energy of a relativistically moving…

hep-ex2001★ 7 cited

Branching Ratio Measurement of the decay K_L -> e+ e- mu+ mu-

Alavi-Harati

We have collected a 43 event sample of the decay with negligible backgrounds and measured its branching ratio to be .…

nucl-ex2001★ 84 cited

Antideuteron and antihelion production in root(s) = 130 GeV Au+Au collisions

C. Adler

The first measurements of light antinucleus production in Au+Au collisions at RHIC are reported. The observed production rates for antideuterons and antihelions are much larger tha…

hep-ex2001★ 6 cited

Measurement of the ratio of differential cross sections for W and Z boson production as a function of transverse momentum in pbar p collisions at sqrt(s)=1.8 TeV

V. M. Abazov

We report on a measurement of the ratio of the differential cross sections for W and Z boson production as a function of transverse momentum in proton-antiproton collisions at sqrt…

hep-ex2001★ 18 cited

A Search forthe Scalar Top Quark in Collisions at 1.8 TeV

D0 Collaboration, V. M. Abazov

We have performed a search for scalar top quark (stop) pair production in the inclusive electron-muon-missing transverse energy final state, using a sample of events co…

cond-mat.soft2001★ 44 cited

Photoassociative Frequency Shift in a Quantum Degenerate Gas

Jordan M. Gerton, Brian J. Frew, Randall G. Hulet

We observe a light-induced frequency shift in single-photon photoassociative spectra of magnetically trapped, quantum degenerate 7Li. The shift is a manifestation of the coupling b…

physics.data-an2001★ 6 cited

alphaPDE: A New Multivariate Technique for Parameter Estimation

B. Knuteson, H. Miettinen, L. Holmstrom

We present alphaPDE, a new multivariate analysis technique for parameter estimation. The method is based on a direct construction of joint probability densities of known variables…

hep-ex2001★ 25 cited

Subjet Multiplicity of Gluon and Quark Jets Reconstructed with the Algorithm in Collisions

D0 collaboration, V. M. Abazov

The D0 Collaboration has studied for the first time the properties of hadron-collider jets reconstructed with a successive-combination algorithm based on relative transverse moment…

hep-ex2001★ 58 cited

DRAFT: Photoproduction of the meson on the proton at large momentum transfer

CLAS collaboration, M. Battaglieri

The differential cross section, , for meson photoproduction on the proton above the resonance region ( GeV) was measured up to a momentum transfer …