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A standard file format is proposed to store process and event information, primarily output from parton-level event generators for further use by general-purpose ones. The information content is identical with what was already defined by the Les Houches Accord five years ago, but then in terms of Fortran commonblocks. This information is embedded in a(More)
PHANTOM is a tree level Monte Carlo for six parton final states at proton–proton, proton–antiproton and electron–positron collider at O(α 6 EM) and O(α 4 EM α 2 S) including possible interferences between the two sets of diagrams. This comprehends all purely electroweak contributions as well as all contributions with one virtual or two external gluons. It(More)
Boson-boson scattering and Higgs production in boson-boson fusion hold the key to electroweak symmetry breaking. In order to analyze these essential features of the Standard Model we have performed a partonic level study of all processes q 1 q 2 → q 3 q 4 q 5 q 6 lν at the LHC using the exact matrix elements at O(α 6 em) provided by PHASE, a new MC(More)
PHANTOM is a tree level Monte Carlo for six parton final states at proton–proton, proton–antiproton and electron–positron collider at O(α 6 EM) and O(α 4 EM α 2 S) including possible interferences between the two sets of diagrams. This comprehends all purely electroweak contribution as well as all contributions with one virtual or two external gluons. It(More)
One-loop weak corrections to the b ¯ b cross section at TeV energy hadron colliders Abstract We investigate one-loop weak corrections to the production cross section of two b-jets at Teva-tron and Large Hadron Collider (LHC). We establish that they are small at inclusive level but dominant in exclusive observables that have a non-trivial dependence on the(More)
The W Mass and QCD Working Group discussed a wide variety of topics relating to present and future measurements of M W at LEP 2, including QCD backgrounds to W + W − production. Particular attention was focused on experimental issues concerning the direct reconstruction and threshold mass measurements, and on theoretical and experimental issues concerning(More)
A complete parton level analysis of ℓ + ℓ − + four jets (ℓ = e, µ) and 3ℓν + two jets production at the LHC is presented, including all processes at order O(α 6 EM), O(α 4 EM α 2 S) and O(α 2 EM α 4 S) when appropriate. The infinite Higgs mass scenario, which is considered as a benchmark for strong scattering theories and is the limiting case for composite(More)