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Journal ArticleDOI

Pair production of neutral higgs particles in gluon-gluon collisions

11 Nov 1996-Nuclear Physics (North-Holland)-Vol. 479, Iss: 1, pp 46-64
TL;DR: In this article, the authors investigated Higgs pair production in gluon-gluon collisions and analyzed the cross-sections of the neutral Higgs particles in the minimal supersymmetric extension.
About: This article is published in Nuclear Physics.The article was published on 1996-11-11 and is currently open access. It has received 382 citations till now. The article focuses on the topics: Higgs field & Higgs boson.
Citations
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Journal ArticleDOI
TL;DR: MadGraph5 aMC@NLO as discussed by the authors is a computer program capable of handling all these computations, including parton-level fixed order, shower-matched, merged, in a unified framework whose defining features are flexibility, high level of parallelisation and human intervention limited to input physics quantities.
Abstract: We discuss the theoretical bases that underpin the automation of the computations of tree-level and next-to-leading order cross sections, of their matching to parton shower simulations, and of the merging of matched samples that differ by light-parton multiplicities. We present a computer program, MadGraph5 aMC@NLO, capable of handling all these computations — parton-level fixed order, shower-matched, merged — in a unified framework whose defining features are flexibility, high level of parallelisation, and human intervention limited to input physics quantities. We demonstrate the potential of the program by presenting selected phenomenological applications relevant to the LHC and to a 1-TeV e + e − collider. While next-to-leading order results are restricted to QCD corrections to SM processes in the first public version, we show that from the user viewpoint no changes have to be expected in the case of corrections due to any given renormalisable Lagrangian, and that the implementation of these are well under way.

6,509 citations


Cites methods from "Pair production of neutral higgs pa..."

  • ...Previous to the release of MadGraph5 aMC@NLO, the only available public code for Higgs pair production was HPAIR [332, 333], relevant to process h....

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Journal ArticleDOI
TL;DR: In this article, theoretical and phenomenological aspects of two-Higgs-doublet extensions of the Standard Model are discussed and a careful study of spontaneous CP violation is presented, including an analysis of the conditions which have to be satisfied in order for a vacuum to violate CP.

2,395 citations

Journal ArticleDOI
TL;DR: In this paper, the authors focused on the mechanism of electroweak symmetry breaking and the fundamental properties of the Higgs particle of the Standard Model and its decay modes and production mechanisms at hadron colliders and at future lepton colliders.

1,352 citations

Journal ArticleDOI
TL;DR: MadGraph5_aMC@NLO as discussed by the authors is a computer program capable of handling parton-level fixed order, shower-matched, merged computations in a unified framework whose defining features are flexibility, high level of parallelisation, and human intervention limited to input physics quantities.
Abstract: We discuss the theoretical bases that underpin the automation of the computations of tree-level and next-to-leading order cross sections, of their matching to parton shower simulations, and of the merging of matched samples that differ by light-parton multiplicities. We present a computer program, MadGraph5_aMC@NLO, capable of handling all these computations -- parton-level fixed order, shower-matched, merged -- in a unified framework whose defining features are flexibility, high level of parallelisation, and human intervention limited to input physics quantities. We demonstrate the potential of the program by presenting selected phenomenological applications relevant to the LHC and to a 1-TeV $e^+e^-$ collider. While next-to-leading order results are restricted to QCD corrections to SM processes in the first public version, we show that from the user viewpoint no changes have to be expected in the case of corrections due to any given renormalisable Lagrangian, and that the implementation of these are well under way.

852 citations

Journal ArticleDOI
TL;DR: In this article, the authors summarize the theoretical properties of the Standard Model Higgs boson and the Higgs sector of the minimal super-symmetric extension of the standard model (MSSM).

455 citations

References
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Journal ArticleDOI
TL;DR: The algorithm can be used as a building block for solving other distributed graph problems, and can be slightly modified to run on a strongly-connected diagraph for generating the existent Euler trail or to report that no Euler trails exist.

13,828 citations

Journal ArticleDOI
TL;DR: In this paper, it was shown that in certain cases vector mesons do indeed acquire mass when the vacuum is degenerate with respect to a compact Lie group, and that strong interaction physics originates from massive gauge fields related to a system of conserved currents.
Abstract: It is of interest to inquire whether gauge vector mesons acquire mass through interaction; by a gauge vector meson we mean a Yang-Mills field associated with the extension of a Lie group from global to local symmetry. The importance of this problem resides in the possibility that strong-interaction physics originates from massive gauge fields related to a system of conserved currents. In this note, we shall show that in certain cases vector mesons do indeed acquire mass when the vacuum is degenerate with respect to a compact Lie group.

4,006 citations

Journal ArticleDOI
TL;DR: In this article, the e + e − → μ + μ − cross section including all the one-loop radiative corrections in the context of the Weinberg model is presented.

2,193 citations

Journal ArticleDOI
TL;DR: In this article, the authors presented the QCD corrections to the fusion cross sections for the Higgs boson in the Standard Model, and for the neutral Higgs particles in the minimal supersymmetric extension of the standard model.
Abstract: Gluon fusion is the main production mechanism for Higgs particles at the LHC. We present the QCD corrections to the fusion cross sections for the Higgs boson in the Standard Model, and for the neutral Higgs bosons in the minimal supersymmetric extension of the Standard Model. The QCD corrections are in general large and they increase the cross sections significantly. In two steps preceding the calculation of the production processes, we determine the QCD radiative corrections to Higgs decays into two photons and gluons.

1,119 citations