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88 research outputs found

On the influence of the cosmological constant on gravitational lensing in small systems

Author: /Annecy LAPP
/Barcelona U. ECM
/INFN Bari /Bari U.
/LBL Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /INFN, Ferrara /Ferrara U. /Frascati /INFN, Genoa /Genoa U. /Harvard U. /Heidelberg U. /Humboldt U., Berlin /INFN, Naples /Naples U. /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Karlsruhe U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT, LNS /McGill U. /INFN, Milan /Milan U. /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /INFN, Padua /Padua U. /Paris U., VI-VII /Pennsylvania U. /INFN, Perugia /Perugia U. /INFN, Pisa /Pisa U. /Pisa, Scuola Normale Superiore /Princeton U. /INFN, Rome /Rome U. /Rostock U. /Rutherford /DSM, DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /INFN, Turin /Turin U. /INFN, Trieste /Trieste U. /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison
Abrams G.S.
Aubert B.
Battaglia M.
Bona M.
Brown D.N.
Cahn R.N.
Eigen G.
Garra Tico J.
Grauges E.
Jacobsen R.G.
Karyotakis Y.
Lees J.P.
Lopez L.
Palano A.
Pappagallo M.
Poireau V.
Prencipe E.
Prudent X.
Stugu B.
Sun L.
Tisserand V.
U. /Bergen
Publication venue: 'American Physical Society (APS)'
Publication date: 16/01/2008
Field of study

The cosmological constant Lambda affects gravitational lensing phenomena. The contribution of Lambda to the observable angular positions of multiple images and to their amplification and time delay is here computed through a study in the weak deflection limit of the equations of motion in the Schwarzschild-de Sitter metric. Due to Lambda the unresolved images are slightly demagnified, the radius of the Einstein ring decreases and the time delay increases. The effect is however negligible for near lenses. In the case of null cosmological constant, we provide some updated results on lensing by a Schwarzschild black hole.Comment: 8 pages, 1 figure; v2: extended discussion on the lens equation, references added, results unchanged, in press on PR

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Study of $E^+E^- \to P \bar{p}$ Via Initial-State Radiation at BABAR

Author: /Annecy LAPP
/Barcelona U. ECM
/Bari U. /INFN Bari
/LBL Berkeley /UC, Berkeley
/Novosibirsk IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U., Comp. Sci. Dept. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U.
/Ruhr U. Bochum
Asgeirsson D. J.
Blinov V. E.
Brown D. N.
Buzykaev A. R.
Eigen G.
Grauges E.
Hearty C.
Kerth L. T.
Khan A.
Koch H.
Kolomensky Yu. G.
Lees J. P.
Lynch G.
Mattison T. S.
McKenna J. A.
Palano A.
Poireau V.
Schroeder T.
So R. Y.
Stugu B.
Tisserand V.
U. /Bergen
U. /British Columbia
U. /Brunel
Publication venue: SLAC National Accelerator Laboratory
Publication date: 20/02/2013
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Study of the Decay B0bar->LambdaC+ pbar pi+ pi- and its Intermediate States

Author: /Annecy LAPP
/Barcelona U. ECM
/Bari U. /INFN Bari
/LBL Berkeley /UC, Berkeley
/Novosibirsk IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U., Comp. Sci. Dept. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U.
/Ruhr U. Bochum
Asgeirsson D. J.
Blinov V. E.
Brown D. N.
Buzykaev A. R.
Eigen G.
Grauges E.
Hearty C.
Kerth L. T.
Khan A.
Koch H.
Kolomensky Yu. G.
Lees J. P.
Lynch G.
Mattison T. S.
McKenna J. A.
Palano A.
Poireau V.
Schroeder T.
So R. Y.
Stugu B.
Tisserand V.
U. /Bergen
U. /British Columbia
U. /Brunel
Publication venue: SLAC National Accelerator Laboratory
Publication date: 04/03/2013
Field of study

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Exclusive Measurements of the b to s gamma Transition Rate and Photon Energy Spectrum

Author: /Annecy LAPP
/Barcelona U. ECM
/Bari U. /INFN Bari
/LBL Berkeley /UC, Berkeley
/Novosibirsk IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Harvey Mudd Coll. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U., Comp. Sci. Dept. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U.
/Ruhr U. Bochum
Asgeirsson D. J.
Blinov V. E.
Brown David Nathan
Buzykaev A. R.
Eigen G.
Garra Tico J.
Grauges E.
Hearty C.
Kerth L. T.
Khan A.
Koch H.
Kolomensky Yu. G.
Lees J. P.
Lynch G.
Mattison T. S.
McKenna J. A.
Palano A.
Poireau V.
Schroeder T.
Stugu B.
Tisserand V.
U. /Bergen
U. /British Columbia
U. /Brunel
Publication venue: SLAC National Accelerator Laboratory
Publication date: 30/08/2012
Field of study

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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Evidence for the decay B0 -> omega omega and search for B0 -> omega phi

Author: /Annecy LAPP
/Barcelona U. ECM
/Bari U. /INFN Bari
/LBL Berkeley /UC, Berkeley
/Novosibirsk IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Jazan U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U., Comp. Sci. Dept. /Maryland U. /MIT /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U.
/Ruhr U. Bochum
a A. R.Buzykaev$^
ac V. E.Blinov$^
authors. /more
Brown D. N.
Eigen G.
Grauges E.
Hearty C.
Kerth L. T.
Khan A.
Koch H.
Kolomensky Yu. G.
Lee M. J.
Lees J. P.
Lynch G.
Mattison T. S.
McKenna J. A.
Palano A.
Poireau V.
Schroeder T.
So R. Y.
Stugu B.
Tisserand V.
U. /Bergen
U. /British Columbia
U. /Brunel
Publication venue: SLAC National Accelerator Laboratory
Publication date: 10/03/2014
Field of study

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Measurement of an Excess in Bbar to D(*) tau- nubar Decays and Implications for Charged Higgs Bosons

Author: /Annecy LAPP
/Barcelona U. ECM
/Bari U. /INFN Bari
/LBL Berkeley /UC, Berkeley
/Novosibirsk IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U., Comp. Sci. Dept. /Maryland U. /MIT /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua
/Ruhr U. Bochum
authors.. /more
Blinov V. E.
Brown D. N.
Buzykaev A. R.
Druzhinin V. P.
Eigen G.
Grauges E.
Hearty C.
Kerth L. T.
Khan A.
Koch H.
Kolomensky Yu. G.
Lees J. P.
Lynch G.
Mattison T. S.
McKenna J. A.
Palano A.
Poireau V.
Schroeder T.
So R. Y.
Stugu B.
Tisserand V.
U. /Bergen
U. /British Columbia
U. /Brunel
Publication venue: SLAC National Accelerator Laboratory
Publication date: 13/03/2013
Field of study

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Time-Integrated Luminosity Recorded by the BABAR Detector at the PEP-II e+e- Collider

Author: /Annecy LAPP
/Barcelona U. ECM
/Bari U. /INFN Bari
/LBL Berkeley /UC, Berkeley
/Novosibirsk IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Frascati /Perugia U. /Frascati /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U.
/Ruhr U. Bochum
Asgeirsson D. J.
Blinov V. E.
Brown D. N.
Buzykaev A. R.
Eigen G.
Grauges E.
Hearty C.
Kerth L. T.
Khan A.
Koch H.
Kolomensky Yu. G.
Lees J. P.
Lynch G.
Mattison T. S.
McKenna J. A.
Palano A.
Poireau V.
Schroeder T.
So R. Y.
Stugu B.
Tisserand V.
U. /Bergen
U. /British Columbia
U. /Brunel
Publication venue: SLAC National Accelerator Laboratory
Publication date: 14/03/2013
Field of study

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SuperB Progress Report: Detector

Author: /Barcelona U. ECM
/INFN Bari /Bari U.
/INFN Bologna /Bologna U. /Caltech /Carleton U. /Cincinnati U. /INFN, CNAF /INFN, Ferrara /Ferrara U. /UC, Irvine /Taras Shevchenko U. /Orsay, LAL /LBL, Berkeley /UC, Berkeley /Frascati /INFN, Legnaro /Orsay, IPN /Maryland U. /McGill U. /INFN, Milan /Milan U. /INFN, Naples /Naples U. /Novosibirsk, IYF /INFN, Padua /Padua U. /INFN, Pavia /Pavia U. /INFN, Perugia /Perugia U. /INFN, Perugia /Caltech /INFN, Pisa /Pisa U. /Pisa, Scuola Normale Superiore /PNL, Richland /Queen Mary, U. of London /Rutherford /INFN, Rome /Rome U. /INFN, Rome2 /Rome U.,Tor Vergata /INFN, Rome3 /Rome III U. /SLAC /Tel Aviv U. /INFN, Turin /Turin U. /INFN, Padua /Trento U. /INFN, Trieste /Trieste U. /TRIUMF /British Columbia U. /Montreal U. /Victoria U.
/INFN Pavia /Bergamo U., Ingengneria Dept.
Carbone A.
Di Sipio R.
Donvito G.
Eigen G.
Fehlker D.
Gabrielli A.
Galli D.
Giorgi F.
Grauges E.
Helleve L.
Manghisoni M.
Marconi U.
Perazzini S.
Re V.
Sbarra C.
Spinoso V.
Traversi G.
U. /Bergen
Vagnoni V.
Valentinetti S.
Villa M.
Zoccoli A.
Publication venue: 'Office of Scientific and Technical Information (OSTI)'
Publication date: 14/02/2012
Field of study

This report describes the present status of the detector design for SuperB. It is one of four separate progress reports that, taken collectively, describe progress made on the SuperB Project since the publication of the SuperB Conceptual Design Report in 2007 and the Proceedings of SuperB Workshop VI in Valencia in 2008

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Study of X(3915) to J/psi omega in two-photon collisions

Author: /Annecy LAPP
/Barcelona U. ECM
/Bari U. /INFN Bari
/LBL Berkeley /UC, Berkeley
/Novosibirsk IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Harvey Mudd Coll. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U., Comp. Sci. Dept. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U.
/Ruhr U. Bochum
Asgeirsson D. J.
Blinov V. E.
Brown David Nathan
Eigen G.
Garra Tico J.
Grauges E.
Hearty C.
Kerth L. T.
Khan A.
Koch H.
Kolomensky Yu. G.
Lees J. P.
Lynch G.
Mattison T. S.
McKenna J. A.
Palano A.
Poireau V.
Schroeder T.
So R. Y.
Stugu B.
Tisserand V.
U. /Bergen
U. /British Columbia
U. /Brunel
Publication venue: SLAC National Accelerator Laboratory
Publication date: 13/12/2012
Field of study

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