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82 papers · 1 filter
Supersymmetric Lorentz invariant deformations of superspaces
A. A. Zheltukhin
Lorentz invariant supersymmetric deformations of superspaces based on Moyal star product parametrized by Majorana spinor and Ramond grassmannian vector $ψ_{m}=-{1\over 2}(\…
Around matrix-tree theorem
Yurii Burman, Boris Shapiro
Generalizing the classical matrix-tree theorem we provide a formula counting subgraphs of a given graph with a fixed 2-core. We use this generalization to obtain an analog of the m…
Measurement of the Isolated Photon Cross Section in p-pbar Collisions at sqrt{s}=1.96 TeV
D0 Collaboration
The cross section for the inclusive production of isolated photons has been measured in p anti-p collisions at sqrt{s}=1.96 TeV with the D0 detector at the Fermilab Tevatron Collid…
Spitzer Observations of Massive Red Galaxies at High Redshift
Casey Papovich, L. A. Moustakas, M. Dickinson +18
We investigate the properties of massive galaxies at z=1-3.5 using HST observations, ground-based near-IR imaging, and Spitzer Space Telescope observations at 3-24 micron. We ident…
CSL-1: Lensing by a Cosmic String or a Dark Matter Filament?
Malcolm Fairbairn
The lens candidate CSL-1 has been interpreted as evidence for a cosmic string. Here we test the hypothesis that the lensing comes from a tidally disrupted dark matter halo. We calc…
Anti-de Sitter space, squashed and stretched
Ingemar Bengtsson, Patrik Sandin
We study the Lorentzian analogues of the squashed 3-sphere, namely 2+1 dimensional anti-de Sitter space, squashed or stretched along fibres that are either spacelike or timelike. T…