58,280 research outputs found

    Dark Energy and Cosmology

    Full text link
    Understanding the space of possible theoretical explanations for the observed cosmic acceleration is a central challenge of modern cosmology. This brief document sketches selected aspects of approaches to this problem, focusing on the possibility that a modification to General Relativity is responsible for acceleration, as presented as a plenary talk at the ICHEP 2012 conference.Comment: 11 pages, invited plenary presentation delivered at the ICHEP 2012 conference. arXiv admin note: text overlap with arXiv:1105.0721, arXiv:1011.0861, arXiv:astro-ph/060751

    Random manifolds and quantum gravity

    Get PDF
    The non-perturbative, lattice field theory approach towards the quantization of Euclidean gravity is reviewed. Included is a tentative summary of the most significant results and a presentation of the current state of art.Comment: invited plenary talk at LATTICE '99 (Pisa), latex 5p

    Future neutrino oscillation facilities: physics priorities and open issues

    Full text link
    The recent discovery that neutrinos have mass opens a wide new field of experimentation. Accelerator-made neutrinos are essential. Ideas for future facilities include superbeams beta-beams and neutrino factories, each associated with one or several options for detector systems. A summary of the perceived virtues and shortcomings of these options, and a number of open questions, are presented.Comment: based on an Invited plenary presentation at NUFACT05, Frascati, June 200

    Theoretical review of diffractive phenomena

    Full text link
    We review QCD based descriptions of diffractive deep inelastic scattering emphasising the role of models with parton saturation. These models provide natural explanation of such experimentally observed facts as the constant ratio of the diffractive and total cross sections as a function of the Bjorken variable, and Regge factorization of diffractive parton distributions. The Ingelman-Schlein model and the soft color interaction model are also presented.Comment: plenary presentation at the Baryon04, 25-29 October 2004, Palaiseau, Franc

    A giant step forward: Notes from the Aboriginal Talking Circle

    Get PDF
    The text was adapted from the closing plenary presentation by John B. Zoe, who shared a perspective on key messages from the Aboriginal Talking Circles

    The Little Review on Leptogenesis

    Full text link
    This is a brief review on the scenario of baryogenesis through leptogenesis. Leptogenesis is an appealing scenario that may relate the observed baryon asymmetry in the Universe to the low-energy neutrino data. In this review talk, particular emphasis is put on recent developments on the field, such as the flavourdynamics of leptogenesis and resonant leptogenesis near the electroweak phase transition. It is illustrated how these recent developments enable the modelling of phenomenologically predictive scenarios that can directly be tested at the LHC and indirectly in low-energy experiments of lepton-number and lepton-flavour violation.Comment: 15 pages, based on a plenary presentation given at the DISCRETE'08 Symposium, 11-16 December 2008, Valencia, Spai

    Tests of the Electroweak Sector of the Standard Model

    Get PDF
    The Electroweak sector of the Standard Model is reviewed and best fits are presented for its free parameters based on currently available experimental tests. The Standard Model remains an excellent descriptions of the available experimental data. The preferred mass range of the still elusive Higgs boson in the Standard Model is 114<mH<219114<m_{\mathrm{H}}<219 GeV at the 95% Confidence Level. A Standard Model Higgs in this mass range is likely to be observed in the years 2007--2010, either at the Tevatron or at the LHC.Comment: 20 pages, 38 figures, Plenary presentation at the HEP2005 International Europhysics Conference on High Energy Physics, EPS (July 21st-27th, 2005) in Lisboa, Portuga
    • …
    corecore