37 research outputs found
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Grid Application for the BaBar Experiment
This paper discusses the use of e-Science Grid in providing computational resources for modern international High Energy Physics (HEP) experiments. We investigate the suitability of the current generation of Grid software to provide the necessary resources to perform large-scale simulation of the experiment and analysis of data in the context of multinational collaboration
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The Radiation Dose Measurement System for the BaBar Electromagnetic Calorimeter
An array of 116 p-channel radiation sensitive MOSFET transistors (RadFETs) has been operational for the past 6 years at the BaBar experiment at the PEP-II asymmetric B-Factory at the Stanford Linear Accelerator Center (SLAC). This system maps the integrated dose absorbed by different regions of the Electromagnetic Calorimeter (EMC) during the running of the experiment. We report on the design and implementation of the system and finally, the performance of the monitoring system during the last 6 years of BaBar data-taking
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Evidence for the decay B0 -> omega omega and search for B0 -> omega phi
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Measurement of an Excess in Bbar to D(*) tau- nubar Decays and Implications for Charged Higgs Bosons
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Study of the Decay B0bar->LambdaC+ pbar pi+ pi- and its Intermediate States
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Exclusive Measurements of the b to s gamma Transition Rate and Photon Energy Spectrum
We use 429 fb{sup -1} of e{sup +}e{sup -} collision data collected at the {Upsilon}(4S) resonance with the BABAR detector to measure the radiative transition rate of b {yields} s{gamma} with a sum of 38 exclusive final states. The inclusive branching fraction with a minimum photon energy of 1.9 GeV is found to be {Beta}({bar B} {yields} Xs{gamma}) = (3.29 {+-} 0.19 {+-} 0.48) x 10{sup -4} where the first uncertainty is statistical and the second is systematic. We also measure the first and second moments of the photon energy spectrum and extract the best fit values for the heavy-quark parameters, m{sub b} and {mu}{sub {pi}}{sup 2}, in the kinetic and shape function models
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Time-Integrated Luminosity Recorded by the BABAR Detector at the PEP-II e+e- Collider
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