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19922026
most citedThe Seventh Data Release of the Sloan Digital Sky Survey

5.4k citations

Showing 1998Show all

45 papers · 1 filter

astro-ph1998★ 61 cited

Comparative Evolution of Jupiter and Saturn

W. B. Hubbard, T. Guillot, M. S. Marley +3

We present evolutionary sequences for Jupiter and Saturn, based on new nongray model atmospheres, which take into account the evolution of the solar luminosity and partitioning of…

astro-ph1998★ 126 cited

Pure hydrogen atmosphere for very cool white dwarfs

D. Saumon, S. B. Jacobson

Microlensing events observed in the line of sight toward the LMC indicate that a significant fraction of the mass of the dark halo of the Galaxy is probably composed of white dwarf…

hep-ex1998★ 48 cited

Measurement of the Branching Fractions and Form Factor

J. Bartelt

Using a sample of 3.3 million B-meson decays collected with the CLEO detector at the Cornell Electron Storage Ring, we have studied and $\bar{B}^0 \to D^+ \ellν…

hep-ex1998★ 22 cited

Search for Exclusive Rare Baryonic Decays of Mesons

T. E. Coan

We report the results of a search for the rare baryonic decay modes B -> Lambda Lambdabar, B -> Lambdabar p, B -> Lambdabar p pi, and B -> p pbar using 5.8M BBbar pairs collected w…

math.GR1998★ 2 cited

Isoperimetric Functions of Groups and Computational Complexity of the Word Problem

J. -C. Birget, A. Yu. Olshanskii, E. Rips +1

We prove that the word problem of a finitely generated group is in NP (solvable in polynomial time by a non-deterministic Turing machine) if and only if this group is a subgrou…

math.GR1998★ 3 cited

Isoperimetric and isodiametric functions of groups

Mark Sapir, Jean-Camille Birget, Eliyahu Rips

This is the first of two papers devoted to connections between asymptotic functions of groups and computational complexity. One of the main results of this paper states that if for…

hep-ex1998★ 11 cited

First Observation of the Decay

M. Artuso

We have observed four fully reconstructed B0 -> D*+D*- candidates in 5.8 million Upsilon(4S) -> BBbar decays recorded with the CLEO detector. The background is estimated to be 0.31…

nucl-ex1998★ 30 cited

Antiproton Production and Antudeuteron Production Limits in Relativistic Heavy Ion Collisions

T. A. Armstrong

We present results from Experiment 864 for antiproton production and antideuteron limits in Au + Pb collisions at 11.5 GeV/c per nucleon. We have measured invariant multiplicities…

hep-ph1998★ 28 cited

The Interaction Structure and Cosmological Relevance of Mass Scales in String Motivated Supersymmetric Theories

Arjun Berera, Thomas W. Kephart

A string motivated, N=1 global supersymmetric, general Lagrangian is obtained that represents an inflaton interacting with the modes of a string. Focus is placed on the Lagrangian'…

hep-ph1998★ 23 cited

Lower Energy Consequences of an Anomalous High-Energy Neutrino Cross-Section

Haim Goldberg, T. J. Weiler

A new strong-interaction has been postulated for neutrinos above ~10^{19} eV to explain the production of highest-energy cosmic ray events. We derive a dispersion relation relating…

hep-ex1998★ 54 cited

Observation of Two Narrow States Decaying into and

C. P. Jessop

We report the first observation of two narrow charmed strange baryons decaying to and , respectively, using data from the CLEO II detector at CESR. We interpret th…

astro-ph1998★ 171 cited

Neutrino Decay as an Explanation of Atmospheric Neutrino Observations

V. Barger, J. G. Learned, S. Pakvasa +1

We show that the observed zenith angle dependence of the atmospheric neutrinos can be accounted for by neutrino decay. Furthermore, it is possible to account for all neutrino anoma…

hep-ex1998★ 18 cited

First Observation of the Decay

M. Bishai

Using data recorded by the CLEO-II detector at CESR, we report the first measurement of the branching fraction for the decay of into . The measured branching frac…

astro-ph1998

New Ideas in the Theory of Extrasolar Giant Planets and Brown Dwarfs

Adam Burrows, W. B. Hubbard, J. I. Lunine +2

We summarize and extend recent work on the theory of extrasolar giant planets (EGPs) and brown dwarfs, paying particular attention to Gliese 229 B, the albedos of EGPs, the composi…

hep-ph1998★ 161 cited

A First Principles Warm Inflation Model that Solves the Cosmological Horizon/Flatness Problems

Arjun Berera, Marcelo Gleiser, Rudnei O. Ramos

A quantum field theory warm inflation model is presented that solves the horizon/flatness problems. The model obtains, from the elementary dynamics of particle physics, cosmologica…

hep-ph1998★ 25 cited

GUT Cosmic Magnetic Fields in a Warm Inflationary Universe

Arjun Berera, Thomas W. Kephart, Stuart D. Wick

Sources of magnetic fields from grand unified theories are studied in the warm inflation regime. A ferromagnetic Savvidy vacuum scenario is presented that yields observationally in…

math.GT1998

Neighborhoods in Stratified Spaces with Two Strata

Bruce Hughes, Laurence R. Taylor, Shmuel Weinberger +1

We develop a theory of tubular neighborhoods for the lower strata in manifold stratified spaces with two strata. In these topologically stratified spaces, manifold approximate fibr…

hep-ph1998★ 38 cited

Inferred 4.4 eV Upper Limits on the Muon- and Tau-Neutrino Masses

V. Barger, T. J. Weiler, K. Whisnant

By combining experimental constraints from atmospheric and solar neutrino oscillations and the tritium beta decay endpoint, we infer upper limits of 4.4 eV on the and m…

hep-ex1998★ 11 cited

Dipion Transitions at Energies Near the

S. Glenn

Using a data sample collected with the CLEO II detector at CESR, we have searched for dipion transitions between pairs of resonances at energies near the . We obtain upp…

hep-ex1998★ 17 cited

First Observation of

A. Anastassov

We report on a study of exclusive radiative decays of the Upsilon(1S) resonance collected with the CLEO-II detector operating at CESR. We present the first observation of the radia…

math.GT1998

Surgery and Stratified Spaces

Bruce Hughes, Shmuel Weinberger

This paper surveys the significant progress over the past couple of decades in the theory of stratified spaces through the application of controlled methods as well as through the…

hep-ph1998★ 34 cited

Generalized Neutrino Mixing from the Atmospheric Anomaly

V. Barger, T. J. Weiler, K. Whisnant

We determine the neutrino mixing and mass parameters that are allowed by the Super-Kamiokande atmospheric neutrino data in a three-neutrino model with one mass-squared difference c…

hep-ph1998★ 3 cited

Invariant Box-Parameterization of Neutrino Oscillations

Thomas J. Weiler, DJ Wagner

The model-independent "box" parameterization of neutrino oscillations is examined. The invariant boxes are the classical amplitudes of the individual oscillating terms. Being obser…

hep-ph1998★ 420 cited

Bi-Maximal Mixing of Three Neutrinos

V. Barger, S. Pakvasa, T. J. Weiler +1

We show that if the solar and atmospheric data are both described by maximal vacuum oscillations at the relevant mass scales then there exists a unique mixing matrix for three neut…