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127 papers · 1 filter
Spatial Correlation of the Topological Charge in Pure SU(3) Gauge Theory and in QCD
Anna Hasenfratz
We study the spatial correlator of the topological charge density operator in pure SU(3) gauge theory and in two flavor QCD. We show that the data for distances up to about 1 fm is…
Two-body B Meson Decays to eta and eta': Observation of B->eta K*
The CLEO Collaboration, S. J. Richichi
In a sample of 19 million produced B mesons, we have observed the decays B -> eta K* and improved our previous measurements of B -> eta'K. The branching fractions we measure for th…
Precise measurement of the b-quark fragmentation function in Z0 boson decays
The SLD Collaboration, Kenji Abe
We have developed a new technique for inclusive reconstruction of the energy of B hadrons. The excellent efficiency and resolution of this technique allow us to make the most preci…
Jet Acceleration by Tangled Magnetic Fields
S. Heinz, M. C. Begelman
We explore the possibility that extragalactic radio jets might be accelerated by highly disorganized magnetic fields that are strong enough to dominate the dynamics until the termi…
The Evolutionary Status of SS433
Andrew R. King, Ronald E. Taam, Mitchell C. Begelman
We consider possible evolutionary models for SS 433. We assume that common-envelope evolution is avoided if radiation pressure is able to expel most of a super-Eddington accretion…
Has Blending Compromised Cepheid-Based Determinations of the Extragalactic Distance Scale?
Brad K. Gibson, Philip R. Maloney, Shoko Sakai
We examine the suggestion that half of the HST Key Project- and Sandage/Saha-observed galaxies have had their distances systematically underestimated, by 0.1-0.3 mag in the distanc…