Download or read book Recent Results on D Meson Decays from the MARK III written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The MARK III Collaboration recently completed the analysis of a number of decay modes of charged and neutral D mesons produced in electron-positron collisions near the peak of the psi(3770) resonance at SLAC's SPEAR storage ring. The mesons were produced nearly at rest in pairs, either DD− or D° anti D°, at a center-of-mass energy below the threshold for DD production. The unique kinematics of the production allow us to isolate the charmed meson signal clearly and unambiguously. The data were collected with the MARK III Spectrometer, a large solid angle magnetic detector. Our data sample corresponds to an integrated luminosity of approximately 9.3 inverse picobarns. New results will be presented on the absolute branching ratios of D mesons into hadronic final states, branching ratios for three body decays via pseudoscalar-vector intermediate states, and branching ratios for Cabibbo allowed and Cabibbo suppressed decays. Inclusive and exclusive branching ratios for the semi-leptonic decays of D mesons will be presented, as well as the first measurement of the vector form factor in the decay D° .-->. K−e, nu, evidence for interference in D+ decays, and new information on the contributions of W exchange diagrams to D° decays.

Download or read book Recent Results on Hadronic D sub S and D Meson Decays from the Mark III written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Results on Charmed Meson Decays from Mark III written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We report recent results on charmed meson decays, obtained using the Mark III detector at SPEAR. The first topic discussed is the observation of ee− .-->. D/sub s/D/sub s/* at .sqrt.s = 4.14 GeV. The D/sub s/* is detected as a peak in the mass distribution recoiling from D/sub s//sup + -/ .-->. phi.pi./sup + -/. The mass of the D/sub s/* is found to be (2109.3 +- 2.1 +- 3.1)MeV/c2, yielding a D/sub s/*-D/sub s/ mass difference of (137.9 +- 2.1 +- 4.3) MeV/c2. The production cross section times branching ratio is also measured. Next, a search for the decay D .-->. .mu.+nu/sub .mu./ is described. A preliminary upper limit (90% CL) on B(D+ .-->. .mu.+nu/sub .mu./) of 8.4 x 10−4 is obtained, corresponding to an upper limit on the decay constant f/sub D/ of 340 MeV/c2. Finally, we present results of a search for the lepton family number violating decay D° .-->. .mu.e. We find B(D° .-->. .mu.e)

Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent Results on Weak Decays of Charmed Mesons from the Mark III Experiment written by and published by . This book was released on 1989 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.

Download or read book High Energy Physics Proceedings Of The 25th International Conference In 2 Volumes written by Kok Khoo Phua and published by World Scientific. This book was released on 1991-07-15 with total page 1583 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings contains the talks delivered at the plenary and parallel sessions. Topics covered include e⁺e⁻ Physics at Z0, String Theory and Theory of Extended Objects, High Energy pp Physics, Non-Accelerator Particle Physics, Conformal Field Theory, e⁺e⁻ Physics below Z⁰, Structure Functions and Deep Inelastic Scattering, Neutrino Physics, Recent Developments in 2-Dimensional Gravity, Lattice Gauge Theory and Computer Simulations, CP Violation , Accelerator Physics, Cosmology and Particle Physics, Interface Between Particle and Condensed Matter Physics, Detector R&D, and Astroparticle Physics.

Download or read book Results from the Mark II Dectetor at SPEAR written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Some recent results are presented from the Mark II detector at SPEAR: observation of some new D meson decay modes, including the Cabibbo suppressed K−K and .pi.−.pi. modes, measurements of the rho .nu. and .pi nu. decays of the tau, and some new data on psi decays. 17 references.

Download or read book Electroweak Interactions and Unified Theories written by J. Thanh Van Tran and published by Atlantica Séguier Frontières. This book was released on 1988 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 1989 International Symposium on Lepton and Photon Interactions at High Energies written by Michael Riordan and published by World Scientific Publishing Company. This book was released on 1990 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Energy Physics Index written by and published by . This book was released on 1990 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 4th International Symposium on Heavy Flavour Physics Orsay France June 25 29 1991 written by Michel Davier and published by Atlantica Séguier Frontières. This book was released on 1992 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Sixth Quark written by Patricia M. McDonough and published by . This book was released on 1985 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the XXIII International Conference on High Energy Physics written by Stewart C. Loken and published by . This book was released on 1987 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book D Meson Production in E e Annihilation written by Petros-Afentoulis Rapidis and published by . This book was released on 1979 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by and published by . This book was released on 1979 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Study Conference on Heavy Flavours written by and published by Atlantica Séguier Frontières. This book was released on 1994 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: