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

5.4k citations

Showing 2003Show all

97 papers · 1 filter

math.GT2003

Some examples of aspherical 4-manifolds that are homology 4-spheres

John G. Ratcliffe, Steven T. Tschantz

In this paper, Problem 4.17 on R. Kirby's problem list is solved by constructing infinitely many aspherical 4-manifolds that are homology 4-spheres

astro-ph2003★ 109 cited

Dynamical Mass Constraints on Low-Mass Pre-Main-Sequence Stellar Evolutionary Tracks: An Eclipsing Binary in Orion with a 1.0 Msun Primary and an 0.7 Msun Secondary

Keivan G. Stassun, Robert D. Mathieu, Luiz Paulo R. Vaz +2

We report the discovery of a double-lined, spectroscopic, eclipsing binary in the Orion star-forming region. We analyze the system spectroscopically and photometrically to empirica…

hep-ex2003★ 14 cited

Measurements of Branching Fractions and CP-Violating Asymmetries in B Meson Decays to Charmless Two-Body States Containing a K0

B. Aubert, BABAR Collaboration

We present measurements of branching fractions and \CP-violating asymmetries in decays of mesons to two-body final states containing a \Kz. The results are based on a data samp…

hep-ex2003★ 4 cited

Measurement of the Branching Fraction for B- --> D0 K*-

B. Aubert, BABAR Collaboration

We present a measurement of the branching fraction for the decay B- --> D0 K*- using a sample of approximately 86 million BBbar pairs collected by the BaBar detector from e+e- coll…

hep-ex2003★ 25 cited

Measurement of Branching Fractions and Charge Asymmetries in B+ --> rho+pi0 and B+ -->rho0pi+ Decays, and Search for B0 --> rho0pi0

B. Aubert

We present measurements of branching fractions and charge asymmetries in -meson decays to , and . The data sample comprises $Υ(4S)…

astro-ph2003★ 99 cited

Searching for Planets in the Hyades III: The Quest for Short-Period Planets

D. Paulson, S. Saar, W. Cochran +1

We have been using the Keck I High Resolution Spectrograph (HIRES) to search for planetary companions in the Hyades cluster. We selected four stars from this sample which showed si…

hep-ph2003★ 11 cited

Space-Time Foam and Cosmic-Ray Interactions

Marcin M. Jankiewicz, Roman V. Buniy, Thomas W. Kephart +1

It has been proposed that propagation of cosmic rays at extreme-energy may be sensitive to Lorentz-violating metric fluctuations (``foam''). We investigate the changes in interacti…

hep-ex2003★ 102 cited

Observation of eta_c^{prime} Production in gamma gamma Fusion at CLEO

D. M. Asner, CLEO Collaboration

We report on the observation of the eta_{c}^{prime}(2^{1}S_{0}), the radial excitation of eta_{c}(1^{1}S_{0}) ground state of charmonium, in the two-photon fusion reaction gamma ga…

hep-ex2003★ 69 cited

Dalitz plot analysis of D_s+ and D+ decay to pi+pi-pi+ using the K-matrix formalism

FOCUS Collaboration

FOCUS results from Dalitz plot analysis of D_s+ and D+ to pi+pi-pi+ are presented. The K-matrix formalism is applied to charm decays for the first time to fully exploit the already…

hep-ph2003★ 3 cited

An Appearance-Like Reactor Experiment To Measure Ue3

Jose Bernabeu, Sergio Palomares-Ruiz

Conventional reactor neutrino experiments are dissapearance experiments, and thus have less sensitivity to small mixing angles than appearance experiments do. It has been recently…

physics.class-ph2003

The energy conservation law in classical electrodynamics 2

E. G. Bessonov, C. A. Brau

A logical error in the usual derivation of the energy conservation law is analyzed, and a way to avoid the error is presented.

gr-qc2003★ 28 cited

Peaks in the Hartle-Hawking Wave Function from Sums over Topologies

M. Anderson, S. Carlip, J. Ratcliffe +2

Recent developments in ``Einstein Dehn filling'' allow the construction of infinitely many Einstein manifolds that have different topologies but are geometrically close to each oth…

hep-ex2003★ 96 cited

Measurements of the mass and width of the eta_c meson and of an eta_c(2S) candidate

B. Aubert, BABAR Collaboration

The mass and total width of the eta_c meson have been measured in two-photon interactions at the SLAC asymmetric B-Factory with the BABAR detector. With a sample of approximately 2…

hep-ex2003★ 17 cited

Measurement of the branching fractions and CP-asymmetry of B^- -> D^0_(CP) K^- decays with the BaBar detector

B. Aubert, BABAR Collaboration

We present a study of B- -> D^0_CP K^- decays, where D^0_CP is reconstructed in CP-even channels, based on a sample of 88.8 million Upsilon(4S)->BBbar decays collected with the BaB…

hep-ex2003★ 1 cited

Charm-anticharm baryon production asymmetries in photon-nucleon interactions

FOCUS Collaboration

We report measurements of the charm-anticharm production asymmetries for , , , , , and baryons from the Fermilab photopro…

hep-ex2003★ 31 cited

Observation of the Decay B0 => rho+ rho- and Measurement of the Branching Fraction and Polarization

The BABAR Collaboration, B. Aubert

We have observed the rare decay B0 => rho+ rho- in a sample of 89 million BB pairs recorded with the BABAR detector. The number of observed events is 88 +23-21 +-9, with a signific…

hep-ex2003★ 19 cited

Observation of $B^0\raωK^0$, $B^+\raηπ^+$, and $B^+\raηK^+$ and Study of Related Decays

The BABAR Collaboration, B. Aubert

We present measurements of branching fractions and charge asymmetries for seven B-meson decays with an eta, eta' or omega meson in the final state. The data sample corresponds to 8…

hep-ex2003★ 1 cited

Measurement of the Average Multiplicity in Meson Decay

B. Aubert, BABAR Collaboration

We present a measurement of the average multiplicity of mesons in , and meson decays. Using of data taken at…

math-ph2003★ 12 cited

Minimal Riesz Energy Point Configurations for Rectifiable d-Dimensional Manifolds

D. P. Hardin, E. B. Saff

For a compact set A in Euclidean space we consider the asymptotic behavior of optimal (and near optimal) N-point configurations that minimize the Riesz s-energy (corresponding to t…

hep-ph2003★ 55 cited

The eccentric universe

Arjun Berera, Roman V. Buniy, Thomas W. Kephart

For a universe containing cosmological constant together with uniform arrangements of magnetic fields, strings, or domain walls, exact solutions to the Einstein equations are shown…

hep-ex2003★ 254 cited

Observation of an Exotic Baryon with S=+1 in Photoproduction from the Proton

V. Kubarovsky

The reaction was studied at Jefferson Lab using a tagged photon beam with an energy range of 3-5.47 GeV. A narrow baryon state with strangeness S=+1 and mass $M…

hep-ex2003★ 33 cited

Limits on the Decay-Rate Difference of Neutral B Mesons and on CP, T, and CPT Violation in B0-B0bar Oscillations

B. Aubert

Using events in which one of two neutral B mesons from the decay of an Y(4S) meson is fully reconstructed, we determine parameters governing decay (ΔΓ_d/Γ_d), CP and T violation (|…

hep-ex2003★ 30 cited

Search for CP Violation in D^0--> K_S^0 pi^+pi^-

D. M. Asner, CLEO Collaboration

We report on a search for CP violation in the decay of D0 and D0B to Kshort pi+pi-. The data come from an integrated luminosity of 9.0 1/fb of e+e- collisions at sqrt(s) ~ 10 GeV r…

astro-ph2003★ 112 cited

Galactic Point Sources of TeV Antineutrinos

Luis A. Anchordoqui, Haim Goldberg, Francis Halzen +1

High energy cosmic ray experiments have identified an excess from the region of the Galactic Plane in a limited energy range around eV (EeV). This is very suggestive of n…