Abdelmalek Abdesselam

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We present the report of the hadronic working group of the BOOST2010 workshop held at the University of Oxford in June 2010. The first part contains a review of the potential of hadronic decays of highly boosted particles as an aid for discovery at the LHC and a discussion of the status of tools developed to meet the challenge of reconstructing and(More)
This paper describes the silicon microstrip modules in the barrel section of the SemiConductor Tracker (SCT) of the ATLAS experiment at the CERN Large Hadron Collider (LHC). The module requirements, components and assembly techniques are given, as well as first results of the module performance on the fully-assembled barrels that make up the detector being(More)
The hypersurfaces of degree d in the projective space P correspond to points of P , where N = ( n+d d ) − 1. Now assume d = 2e is even, and let X(n,d) ⊆ P N denote the subvariety of two e-fold hyperplanes. We exhibit an upper bound on the Castelnuovo regularity of the ideal of X(n,d), and show that this variety is r-normal for r ≥ 2. The latter result is(More)
Let A,B denote generic binary forms, and let ur = (A,B)r denote their r-th transvectant in the sense of classical invariant theory. In this paper we classify all the quadratic syzygies between the {ur}. As a consequence, we show that each of the higher transvectants {ur : r ≥ 2} is redundant in the sense that it can be completely recovered from u0 and u1.(More)