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95 papers · 1 filter
On empty lattice simplices in dimension 4
Margherita Barile, Dominique Bernardi, Alexander Borisov +1
We give an almost complete classification of empty lattice simplices in dimension 4 using the conjectural results of Mori-Morrison-Morrison, later proved by Sankaran and Bober. In…
Identification and properties of the photospheric emission in GRB090902B
F. Ryde, M. Axelsson, B. B. Zhang +19
The Fermi Gamma-ray Space Telescope observed the bright and long GRB090902B, lying at a redshift of z = 1.822. Together the Large Area Telescope (LAT) and the Gamma-ray Burst Monit…
Parallel Factorizations in Numerical Analysis
Pierluigi Amodio, Luigi Brugnano
In this paper we review the parallel solution of sparse linear systems, usually deriving by the discretization of ODE-IVPs or ODE-BVPs. The approach is based on the concept of para…
A Search for B+ -> tau+ nu Recoiling Against B- -> D0 l- nu X
The BABAR Collaboration, B. Aubert
We present a search for the decay () in pairs recorded with the BABAR detector at the PEP-II B-Facto…
A covariant and gauge invariant formulation of the cosmological "backreaction"
M. Gasperini, G. Marozzi, G. Veneziano
Using our recent proposal for defining gauge invariant averages we give a general-covariant formulation of the so-called cosmological "backreaction". Our effective covariant equati…
Determining alpha_s from the hyperfine splitting mUpsilon(1S)-mEta(b)
Pietro Colangelo, Pietro Santorelli, Egidio Scrimieri
The measurement of the eta_b mass, together with a QCD result for the hyperfine splitting E_{HFS}=M_{Upsilon(1S)}-M_{eta_b}, allows us to determine the strong coupling constant alp…