151,813 research outputs found

    Photon Structure and gamma-gamma Physics

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    The LEP experiments are making real progress in understanding the structure of the photon, though the results do not yet give such clear demonstrations of QCD in action as the proton structure has done. Other new results are reported, including QED related effects and γγResonances\gamma \gamma \to Resonances, from LEP and from CLEO II.Comment: 16 pages, 15 figures, Contribution to "Physics in Collision", Frascati, June 18-19, 199

    The Higgs and Neutralino Sectors of the Next-to-Minimal Supersymmetric Standard Model

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    The Next-to-Minimal Supersymmetric Standard Model (NMSSM) includes a Higgs iso-singlet superfield in addition to the two Higgs doublet superfields of the minimal supersymmetric extension. The Higgs sector and neutralino sectors of this model are examined within the context of a future linear collider.Comment: 5 pages, talk presented at LCWS04, International Conference on Linear Colliders, 19-23 April 2004, Paris, France, to appear in the proceeding

    Two Photon Physics at LEP2; including data Monte-Carlo comparison

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    A partisan review of some of the most important γγ\gamma\gamma channels accessible at LEP 2, with special stress on the measurement of the photon structure function F2γF_{2}^{\gamma} and on associated problems with Monte Carlo modelling.Comment: 7 pages including 5 figures. Invited talk given at the LEP2 Phenomenology Workshop, Oxford, U.K., 14 April 199

    Alternative Experimental Protocol for a PBR-Like Result

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    Pusey, Barrett and Rudolph (PBR) have recently proven an important new theorem in the foundations of quantum mechanics. Here we propose alternative experimental protocols which lead to the PBR result for a special case and a weaker PBR-like result generally. Alternative experimental protocols support the assumption of measurement independence required for the PBR theorem.Comment: 4 pages, 1 figur

    Linear Collider Physics

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    Studies of the physics potential of the Future Linear Collider are establishing a broad programme which will start in the region of 350 to 500 GeV C. of M. energy. The main goal is to understand why the standard model works; by studying the properties of the Higgs sector, if it is within reach, and by exploring the complex world of Supersymmetry, if it is real. If the Higgs boson is not found soon, then the Linear Collider can test the standard model with high precision measurements, both at energies approaching 1 TeV and with high statistics at the Z0.Comment: 12 pages, 4 figures, to be published in Proceedings of La Thuile 200