50,297 research outputs found

    Prospect of D0 mixing and CPV at LHCb

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    Precision measurements in charm physics offer a window into a unique sector of potential New Physics interactions. LHCb is poised to become a world leading experiment for charm studies, recording enormous statistics with a detector tailored for flavor physics. This article presents recent charm CPV and mixing studies from LHCb, including LHCb's first CP asymmetry measurement with 37 inverse pb of data collected in 2010. The difference of the CP asymmetries of D0 decays to the K-K+ and \pi-\pi+ final states is determined to be \Delta A_{CP} = (-0.28 +/- 0.70 +/- 0.25)%. Significant updates to the material presented at the 4th International Workshop on Charm Physics are included.Comment: 5 pages, 4 figures. Submitted to the proceedings of the 4th International Workshop on Charm Physics (Charm2010), Beijing, Chin

    Diffractive Results from the Tevatron

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    Hard diffraction in events with dijets and rapidity gaps has been studied by D\O and CDF for three processes: hard color singlet exchange, hard single diffraction, and hard double pomeron exchange, using Tevatron pˉp\bar pp data at s\sqrt{s} = 630 GeV and 1.8 TeV. Measurements of rates, η,ET\eta, E_T and s\sqrt{s} dependencies are presented and comparisons made with predictions of several models.Comment: Presented at DPF99, 8 pages, 6 figure

    New results on the spectroscopy of XYZ states from LHC experiments

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    The main results from LHC experiments on XYZ charmonium-like candidates are summarized.Comment: to appear in the proceedings of The 5th International Workshop on Charm Physics (Charm 2012
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