34,837 research outputs found

    Rare Hadronic and Radiative Penguin B Decays at BaBar

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    We report recent results in the study of rare hadronic and radiative penguin decays of B mesons. These results are based on a sample of 23 million B B-bar pairs collected by the BaBar Collaboration at the SLAC PEP-II e+e- B Factory.Comment: 7 pages, 2 figures; Contributed to the Proceedings of the 5th KEK Topical Conference: Frontiers In Flavor Physics (KEKTC5), 20-22 Nov 2001, Tsukuba, Ibaraki, Japa

    Update on angles and sides of the CKM unitarity triangle from BABAR

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    We report several recent updates from the BABAR Collaboration on the matrix elements Vcb|V_{cb}|, Vub|V_{ub}|, and Vtd|V_{td}| of the Cabibbo-Kobayashi-Maskawa (CKM) quark-mixing matrix, and the angles β\beta and α\alpha of the unitarity triangle. Most results presented here are using the full BABAR Υ(4S)\Upsilon(4S) data set.Comment: 3 pages, talk given at PANIC 08 conference, Eilat, Israel, 9-14 Nov 200

    BaBar B Decay Results

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    Data from the first run of the BaBar detector at the PEP II accelerator are presented. Measurements of many rare B decay modes are now possible using the large data sets currently being collected by BaBar. An overview of analysis techniques and results on data collected in 2000 are described.Comment: 16 pages, 35 figures. Submission to Lepton-Photon 2001 Rome conference proceeding

    Rare Hadronic B Decays

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    A review of recent results on branching fractions and time-integrated CP asymmetries of rare B_u and B_d decays to mesonic final states from BABAR, Belle and CLEO experiments is presented.Comment: 9 pages, contributed to the proceedings of the 6th International Conference on Hyperons, Charm and Beauty Hadrons, 6/27/2004-7/03/2004, Chicago, US

    Recent measurements of sin2b at BaBar

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    The angle beta is the most accurately measured quantity that determines the Unitarity Triangle. In this article I review the various measurements of this angle performed by the BaBar Collaboration, and discuss their implications in the search for new physics.Comment: 5 pages, 4 figures, contributed to the Proceedings of BEAUTY 200

    Charm and Charmonium Spectroscopy

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    Recent experimental results in charm and charmonium spectroscopy are reviewed.Comment: 4 pages, contributed to the Proceedings of BEACH 2006, Lancater, Englan

    Recent charm mixing results from BABAR, Belle, and CDF

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    A summary of the results of several recent studies of charm mixing is presented. A number of different methods were used, including the measurement of lifetime ratios for final states of different CP, time dependence of wrong-sign hadronic decays, fits to time-dependent Dalitz plots, and searches for wrong-sign semi-leptonic decays. Taken together, they suggest mixing is of order 1%. The status of searches for indirect CP violation is also reported.Comment: 7 pages, 2 figures, proceedings from PHIPSI0

    Measurements of the CKM angle β/ϕ1\beta/\phi_1 at the B Factories

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    We report measurements of time-dependent CP asymmetries related to the CKM angle β/ϕ1\beta/\phi_1, using decays of neutral B mesons to charmonium, open charm and in bsb\to s loop processes. A preliminary measurement of time-dependent CP asymmetries in B0ρ0(770)KS0B^0\to \rho^0(770) K^0_S decays from the BaBar experiment is given here.Comment: Contributed to the Proceedings of the XLI Rencontres de Moriond - Electroweak Interactions and Unified Theory, La Thuile Italy, March 11-18, 2006. 6 page

    Electro-Weak Penguin and Leptonic Decays in BaBar

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    Electro-weak penguin and leptonic decays provide an indirect probe for physics beyond the Standard Model and contribute to the determination of Standard Model parameters. Copious quantities of B mesons produced at the B-Factories permit precision measurements of the electro-weak penguin decays and searches for leptonic decays. We review the current experimental status of b -> s(d) gamma, B^0 -> D^{*0} gamma, b -> s l^+ l^- and finally B->tau nu decays at BaBar.Comment: 8 pages, 2 postscript figures. To appear in the proceedings of the 10th International Conference on B-Physics at Hadron Machines, BEAUTY 200
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