6,760 research outputs found

    Stanford Linear Accelerator Center: A Chemical Management Services Case Study

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    The Chemical Management Services (CMS) program at Stanford Linear Accelerator Center (SLAC)was launched in August of 2005. In the first six months of the program, there were 170 users in 35 work areas requesting more than 1,600 different chemicals from a central ordering system provided by the CMS provider. The CMS provider exceeded the goals for on-time delivery and the program has reduced scrap and spoilage in inventory. Savings have already been realized in material purchase costs, inventory carrying costs, MSDS management, EHS labor, and annual hazardous material inventory activity

    Leptonic Decays at BABAR

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    We present recent results on leptonic B decays using data collected by the BaBar detector at the PEP-II asymmetric-energy e+e- collider at the Stanford Linear Accelerator Center. We report searches for the B -> tau nu decay, based on two statistically independent data samples.Comment: 4 pages, 3 eps figures, Submitted for the SUSY07 proceeding

    Flux profile scanners for scattered high-energy electrons

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    The paper describes the design and performance of flux integrating Cherenkov scanners with air-core reflecting light guides used in a high-energy, high-flux electron scattering experiment at the Stanford Linear Accelerator Center. The scanners were highly radiation resistant and provided a good signal to background ratio leading to very good spatial resolution of the scattered electron flux profile scans.Comment: 22 pages, 17 figure

    Evidence for virtual Compton scattering from the proton

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    In virtual Compton scattering an electron is scattered off a nucleon such that the nucleon emits a photon. We show that these events can be selected experimentally, and present the first evidence for virtual Compton scattering from the proton in data obtained at the Stanford Linear Accelerator Center. The angular and energy dependence of the data is well described by a calculation that includes the coherent sum of electron and proton radiation

    Charmless Hadronic B Decays at BaBar

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    We present recent results on charmless hadronic B decays using data collected by the BaBar detector at the PEP-II asymmetric-energy e+e- collider at the Stanford Linear Accelerator Center. We report measurements of branching fractions and charge asymmetries in several charmless two-body, three-body, and quasi-two-body decay modes. We also report measurements of polarization in charmless B decays to exclusive final states with two vector mesons.Comment: Proceedings to the Lake Louise Winter Institute 200

    Electroweak Results from the SLD Experiment

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    We present an overview of the electroweak physics program of the SLD experiment at the Stanford Linear Accelerator Center (SLAC). A data sample of 550K Z0 decays has been collected. This experiment utilizes a highly polarized electron beam, a small interaction volume, and a very precise pixel vertex detector. We present a preliminary result for the weak mixing angle, sin2(thetaw)=0.23110 +- 0.00029. We also present a preliminary result for the parity violating parameter, A_b = 0.898 +- 0.029. These measurements are used to test for physics beyond the Standard Model.Comment: 9 pages, 7 figure
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