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156 papers · 1 filter
Black Hole Entropy from Horizon Conformal Field Theory
S. Carlip
String theory and ``quantum geometry'' have recently offered independent statistical mechanical explanations of black hole thermodynamics. But these successes raise a new problem:…
Phenomenology of deflected anomaly-mediation
Riccardo Rattazzi, Alessandro Strumia, James D. Wells
We explore the phenomenology of a class of models with anomaly-mediated supersymmetry breaking. These models retain the successful flavor properties of the minimal scenario while a…
Hard Single Diffraction in pbarp Collisions at root-s = 630 and 1800 GeV
The D0 Collaboration, B. Abbott
Using the D0 detector, we have studied events produced in proton-antiproton collisions that contain large forward regions with very little energy deposition (``rapidity gaps'') and…
Reduction of critical temperatures in pure and thoriated UBe13 by columnar defects
H. A. Radovan, E. Behne, R. J. Zieve +3
We investigate the influence of columnar defects on the superconducting transition temperatures of pure and thoriated UBe13. The defects cause all the transitions to widen and to d…
Topology and Chiral Symmetry in QCD with Overlap Fermions
Robert G. Edwards, Urs M. Heller, Joe Kiskis +1
We briefly review the overlap formalism for chiral gauge theories, the overlap Dirac operator for massless fermions and its connection to domain wall fermions. We describe properti…
Phase-Locking of Vortex Lattices Interacting with Periodic Pinning
Charles Reichhardt, Richard T. Scalettar, Gergely T. Zimanyi +1
We examine Shapiro steps for vortex lattices interacting with periodic pinning arrays driven by AC and DC currents. The vortex flow occurs by the motion of the interstitial vortice…
The Nose-hoover thermostated Lorentz gas
K. Rateitschak, R. Klages, W. G. Hoover
We apply the Nose-Hoover thermostat and three variations of it, which control different combinations of velocity moments, to the periodic Lorentz gas. Switching on an external elec…
The FIRST Bright Quasar Survey. II. 60 Nights and 1200 Spectra Later
R. L. White, R. H. Becker, M. D. Gregg +11
We have used the VLA FIRST survey and the APM catalog of the POSS-I plates as the basis for constructing a new radio-selected sample of optically bright quasars. This is the first…
The Isolated Photon Cross Section in p pbar Collisions at sqrt(s) = 1.8 TeV
D0 Collaboration, B. Abbott
We report a new measurement of the cross section for the production of isolated photons, with transverse energies (ET) above 10 GeV and pseudorapidities |eta| < 2.5, in p pbar coll…
Perturbative 3-manifold invariants by cut-and-paste topology
Greg Kuperberg, Dylan P. Thurston
We give a purely topological definition of the perturbative quantum invariants of links and 3-manifolds associated with Chern-Simons field theory. Our definition is as close as pos…
Noncommutative supergeometry and duality
Albert Schwarz
We introduce a notion of Q-algebra that can be considered as a generalization of the notion of Q-manifold (a supermanifold equipped with an odd vector field obeying {Q,Q} =0). We d…
Compactification of M(atrix) theory on noncommutative toroidal orbifolds
A. Konechny, A. Schwarz
It was shown by A. Connes, M. Douglas and A. Schwarz that noncommutative tori arise naturally in consideration of toroidal compactifications of M(atrix) theory. A similar analysis…
Zee Neutrino Mass Model in SUSY Framework
Kingman Cheung, Otto C. W. Kong
We study the Zee model of neutrino mass in the framework of R-parity violating supersymmetry. Within the matter contents of the minimal supersymmetric standard model, any one of th…
A Measurement of the W to tau+nu Production Cross Section in p-pbar Collisions at sqrt(s) = 1.8 TeV
D0 Collaboration, B. Abbott
We report on a measurement of sigma(p-pbar to W+X) times B(W to tau+nu) in p-pbar collisions at sqrt(s) = 1.8 TeV at the Fermilab Tevatron. The measurement is based on an integrate…
Limits on Anomalous WWgamma and WWZ Couplings from WW/WZ->enujj Production
D0 collaboration, B. Abbott, M. Abolins
Limits on anomalous WWgamma and WWZ couplings are presented from a study of WW/WZ->enujj events in ppbar collisions at sqrt{s}=1.8 TeV. Results from the analysis of data collected…
Probing BFKL Dynamics in the Dijet Cross Section at Large Rapidity Intervals in ppbar Collisions at sqrt{s}=1800 and 630 GeV
D0 Collaboration, B. Abbott
Inclusive dijet production at large pseudorapidity intervals (delta_eta) between the two jets has been suggested as a regime for observing BFKL dynamics. We have measured the dijet…
Limits on Quark Compositeness from High Energy Jets in PbarP Collisions at 1.8 TeV
D0 collaboration, B. Abbott
Events in PbarP collisions at sqrt(s)=1.8 TeV with total transverse energy exceeding 500 GeV are used to set limits on quark substructure. The data are consistent with next-to-lead…
Radial Color Gradient and Main Sequence Mass Segregation in M30 (NGC 7099)
Justin H. Howell, Puragra Guhathakurta, Amy Tan
It has long been known that the post-core-collapse globular cluster M30 has a bluer-inward color gradient, and recent work suggests that the central deficiency of bright red giants…
On Three-Dimensional Space Groups
John Conway, Olaf Delgado Friedrichs, Daniel H. Huson +1
An entirely new and independent enumeration of the crystallographic space groups is given, based on obtaining the groups as fibrations over the plane crystallographic groups, when…
Quantum Fluctuations and Dissipation in Thin Superconducting Wires
A. D. Zaikin, D. S. Golubev, A. van Otterlo +1
We investigate quantum fluctuations in thin superconducting wires. We demonstrate that quantum phase slips dominate the system behavior at low temperatures and are well in the meas…
Interactions Between Charged Rods Near Salty Surfaces
Rebecca Menes, Niels Gronbech Jensen, Phil A. Pincus
Using both theoretical modeling and computer simulations we study a model system for DNA interactions in the vicinity of charged membranes. We focus on the polarization of the mobi…
Phenomenological description of the microwave surface impedance and complex conductivity of high- single crystals
M. R. Trunin, Yu. A. Nefyodov, H. J. Fink
Measurements of the microwave surface impedance and of the complex conductivity of high-quality, high- single crystals of YBCO, BSCCO, TBCCO,…
Melting of Moving Vortex Lattices With Periodic Pinning
C. Reichhardt, G. T. Zimanyi
We study numerically the effects of temperature on moving vortex lattices interacting with periodic pinning arrays. For low temperatures the vortex lattice flows in channels, formi…
Charge ordering and long-range interactions in layered transition metal oxides: a quasiclassical continuum study
Branko P. Stojkovic, Z. G. Yu, A. L. Chernyshev +3
The competition between long-range and short-range interactions among holes moving in an antiferromagnet (AF), is studied within a model derived from the spin density wave picture…