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29 papers · 1 filter
A note on the power divergence in lattice calculations of amplitudes at
Maarten Golterman, C. -J. David Lin, Elisabetta Pallante
In this note, we clarify a point concerning the power divergence in lattice calculations of decay amplitudes. There have been worries that this divergence might…
HST/ACS Imaging of Omega Centauri: Optical Counterpart for the Quiescent Low-Mass X-Ray Binary
D. Haggard, A. M. Cool, J. Anderson +5
We report the discovery of an optical counterpart to a quiescent neutron star in the globular cluster Omega Centauri (NGC 5139). The star was found as part of our wide-field imagin…
The detailed optical light curve of GRB 030329
Y. M. Lipkin, E. O. Ofek, A. Gal-Yam +22
(Abridged) We present densely sampled BVRI light curves of the optical transient associated with the gamma-ray burst GRB 030329, the result of a coordinated observing campaign cond…
Ultra-high-precision velocity measurements of oscillations in alpha Cen A
R. Paul Butler, Timothy R. Bedding, Hans Kjeldsen +5
We have made differential radial velocity measurements of the star alpha Cen A using two spectrographs, UVES and UCLES, both with iodine absorption cells for wavelength referencing…
The Gemini Deep Deep Survey: II. Metals in Star-Forming Galaxies at Redshift 1.3<z<2
S. Savaglio, K. Glazebrook, R. G. Abraham +9
The goal of the Gemini Deep Deep Survey (GDDS) is to study an unbiased sample of K<20.6 galaxies in the redshift range 0.8<z<2.0. Here we determine the statistical properties of th…
Center Dominance in SU(2) Gauge-Higgs Theory
Roman Bertle, Manfried Faber, Jeff Greensite +1
We study the SU(2) gauge-Higgs system in D=4 dimensions, and analyze the influence of the fundamental-representation Higgs field on the vortex content of the gauge field. It is sho…