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hep-ex1997★ 69 cited

A Measurement of the W Boson Mass

B. Abbott, M. Abolins, B. S. Acharya

We present a measurement of the W boson mass using data collected by the D0 experiment at the Fermilab Tevatron during 1994--1995. We identify W bosons by their decays to fina…

hep-ex1997★ 33 cited

A Measurement of the W Boson Mass

B. Abbott, M. Abolins, B. S. Acharya

We report a measurement of the W boson mass based on an integrated luminosity of 82 pb from \ppbar collisions at TeV recorded in 1994--1995 by the \Dzero dete…

math.GT1997

3-manifolds as viewed from the curve complex

John Hempel

A Heegaard diagram for a 3-manifold is regarded as a pair of simplexes in the complex of curves on a surface and a Heegaard splitting as a pair of subcomplexes generated by the equ…

hep-ex1997★ 173 cited

Polarised Quark Distributions in the Nucleon from Semi-Inclusive Spin Asymmetries

Spin Muon Collaboration

We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering of polarised muons on polarised protons and…

astro-ph1997

Emission and Cooling Processes in a Hybrid Thermal-Nonthermal Plasma

D. Lin, E. P. Liang

In a hybrid thermal-nonthermal plasma, we find that the dominant emission and absorption mechanisms are synchrotron by nonthermal electrons and bremsstrahlung by thermal electrons.…

astro-ph1997★ 5 cited

Testing the Invariance of Cooling Rate in Gamma-Ray Burst Pulses

A. Crider, E. P. Liang, R. D. Preece

Recent studies have found that the spectral evolution of pulses within gamma-ray bursts (GRBs) is consistent with simple radiative cooling. Perhaps more interesting was a report th…

astro-ph1997★ 7 cited

Confronting Synchrotron Shock and Inverse Comptonization Models with GRB Spectral Evolution

A. Crider, E. P. Liang, R. D. Preece

The time-resolved spectra of gamma-ray bursts (GRBs) remain in conflict with many proposed models for these events. After proving that most of the bursts in our sample show evidenc…

hep-ex1997★ 52 cited

Search for First Generation Scalar Leptoquark Pairs in ppbar Collisions at sqrt(s)=1.8 TeV

DZERO Collaboration, B. Abbott

We have searched for first generation scalar leptoquark (LQ) pairs in the enu+jets channel using ppbar collider data (integrated luminosity= 115 pb^-1) collected by the DZero exper…

astro-ph1997

Spectral Variability in PKS 0528+134 at Gamma-Ray Energies

M. Boettcher, W. Collmar

We present model calculations to the observed spectral variability in the gamma-ray spectrum of the ultraluminous blazar-type quasar PKS 0528+134. We argue that the observed appear…

cond-mat.stat-mech1997★ 153 cited

Elastic and inelastic collisions of 6Li in magnetic and optical traps

M. Houbiers, H. T. C. Stoof, W. I. McAlexander +1

We use a full coupled channels method to calculate collisional properties of magnetically or optically trapped ultracold 6Li. The magnetic field dependence of the s-wave scattering…

hep-ex1997★ 31 cited

Zgamma Production in pbarp Collisions at sqrt(s)=1.8 TeV and Limits on Anomalous ZZgamma and Zgammagamma Couplings

D0 Collaboration

We present a study of Z +gamma + X production in p-bar p collisions at sqrt{S}=1.8 TeV from 97 (87) pb^{-1} of data collected in the eegamma (mumugamma) decay channel with the D0 d…

hep-ex1997★ 25 cited

Determination of the Mass of the W Boson Using the D0 Detector at the Tevatron

B. Abbott

A measurement of the mass of the W boson is presented which is based on a sample of 5982 W -> e nu decays observed in pbar-p collisions at sqrt(s) = 1.8 TeV with the D0 detector du…

cond-mat.mes-hall1997★ 9 cited

Transport Spectroscopy of Single-Walled Carbon Nanotubes

David H. Cobden, Marc Bockrath, Nasreen Chopra +5

We have performed transport spectroscopy on individual ropes of single-walled carbon nanotubes. We find that the levels are Zeeman split in a magnetic field, with a g-factor of 2.0…

hep-ex1997★ 31 cited

Search for Light Gluinos via the Spontaneous Appearance of pi+pi- Pairs with an 800 GeV/c Proton Beam at Fermilab

J. Adams

We searched for the appearance of pi+pi- pairs with invariant mass greater than 648 MeV in a neutral beam. Such an observation could signify the decay of a long-lived light neutral…

astro-ph1997★ 318 cited

The Asymmetric Wind in M82

P. L. Shopbell, J. Bland-Hawthorn

We have obtained detailed imaging Fabry-Perot observations of the nearby galaxy M82, in order to understand the physical association between the high-velocity outflow and the starb…

hep-ex1997★ 39 cited

Experimental Search for Chargino and Neutralino Production in Supersymmetry Models with a Light Gravitino

Dzero Collaboration, B. Abbott

We search for inclusive high diphoton events with large missing transverse energy in collisions at =1.8 TeV. Such events are expected from pair productio…

astro-ph1997

The radio spectra of galactic nuclei

M. Boettcher, H. -P. Reuter, H. Lesch

We present a model for the inverted radio spectra of active active galactic nuclei as well as the central regions of normal galaxies. The model is based on the unified scenario for…

hep-ex1997★ 52 cited

Search for Scalar Leptoquark Pairs Decaying to Electrons and Jets in pbarp Collisions

D0 Collaboration, B. Abbott et al

We have searched for the pair production of first generation scalar leptoquarks in the eejj channel using the full data set (123 pb-1) collected with the D0 detector at the Fermila…

hep-ph1997★ 23 cited

Light-Gravitino Production at Hadron Colliders

Jaewan Kim, Jorge L. Lopez, D. V. Nanopoulos +2

We consider the production of gravitinos () in association with gluinos () or squarks () at hadron colliders, including the three main sub-process…

hep-ex1997★ 45 cited

Measurement of Dijet Angular Distributions and Search for Quark Compositeness

Brad Abbott

We have measured the dijet angular distribution in =1.8 TeV collisions using the D0 detector. Order QCD predictions are in good agreement with the…

cond-mat.supr-con1997★ 214 cited

The Superfluid State of Atomic Li6 in a Magnetic Trap

M. Houbiers, R. Ferwerda, H. T. C. Stoof +3

We report on a study of the superfluid state of spin-polarized atomic Li6 confined in a magnetic trap. Density profiles of this degenerate Fermi gas, and the spatial distribution o…

astro-ph1997★ 3 cited

A Thermal-Nonthermal Inverse Compton Model for Cyg X-1

A. Crider, E. P. Liang, I. A. Smith +2

Using Monte Carlo methods to simulate the inverse Compton scattering of soft photons, we model the spectrum of the Galactic black hole candidate Cyg X-1, which shows evidence of a…

astro-ph1997★ 5 cited

Spectral modeling of gamma-ray blazars

M. Boettcher, H. Mause, R. Schlickeiser

We present model calculations reproducing broadband spectra of -ray blazars by a relativistic leptonic jet, combining the EIC and the SSC model. To this end, the evolution of th…

astro-ph1997★ 19 cited

Strict Limits on the Ionizing Luminosity in NGC 1068 from Jet-axis Molecular Clouds

J. Bland-Hawthorn, S. L. Lumsden, G. M. Voit +2

The radio jet axis of NGC 1068 is characterised by energetic activity from x-ray to radio wavelengths. Detailed kinematic and polarization studies have shown that this activity is…