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229 papers · 1 filter
Excitation spectra and ground state properties of the layered spin-1/2 frustrated antiferromagnets Cs_2CuCl_4 and Cs_2CuBr_4
John O. Fjaerestad, Weihong Zheng, Rajiv R. P. Singh +2
We use series expansion methods to study ground- and excited-state properties in the helically ordered phase of spin-1/2 frustrated antiferromagnets on an anisotropic triangular la…
Measurement of the Top Quark Mass in ppbar Collisions at sqrt(s) = 1.96 TeV using the Decay Length Technique
A. Abulencia et al.
We report the first measurement of the top quark mass using the decay length technique in ppbar collisions at a center-of-mass energy of 1.96 TeV. This technique uses the measured…
A Simple Model of Low-scale Direct Gauge Mediation
Csaba Csáki, Yuri Shirman, John Terning
We construct a calculable model of low-energy direct gauge mediation making use of the metastable supersymmetry breaking vacua recently discovered by Intriligator, Seiberg and Shih…
Cross Section Measurements of High- Dilepton Final-State Processes Using a Global Fitting Method
M. Kruse
We present a new method for studying high- dilepton events (, , ) and simultaneously extracting the production cross sections o…
Dynamical masses of ultra-compact dwarf galaxies in Fornax
M. Hilker, H. Baumgardt, L. Infante +3
Aims. We determine masses and mass-to-light ratios of five ultra-compact dwarf galaxies and one dwarf elliptical nucleus in the Fornax cluster from high resolution spectroscopy. Me…
Internal Properties of Ultra-Compact Dwarf Galaxies in the Virgo Cluster
E. A. Evstigneeva, M. D. Gregg, M. J. Drinkwater +1
We present new imaging and spectroscopic observations of six ultra-compact dwarf (UCD) galaxies in the Virgo Cluster, along with re-analysed data for five Fornax Cluster UCDs. Thes…