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Semileptonic B Decays From Babar
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Book Synopsis Semileptonic B Decays at BABAR. by :
Download or read book Semileptonic B Decays at BABAR. written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results on semileptonic B decays obtained with the BABAR detector. The large data set accumulated at the PEP-II asymmetric-energy B-Factory allows a new measurement technique, where the hadronic decay of one B meson is fully reconstructed and the semileptonic decay of the recoiling B meson is studied. Traditional analysis techniques of inclusive and exclusive B decays complement this approach with very high statistics data samples. These measurements play an important role in the tests of the description of CP violation in the Standard Model: The determinations of the Cabibbo-Kobayashi-Maskawa matrix elements V[sub cb] and V[sub ub] provide constraints on the unitarity of the CKM triangle. Furthermore, the experimental measurement of parameters of Heavy Quark Effective Theory test the consistency of the theoretical description of semileptonic B decays.
Book Synopsis Inclusive Semileptonic B Decays at BABAR. by :
Download or read book Inclusive Semileptonic B Decays at BABAR. written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report updates on two analyses of inclusive semileptonic B decays based on a dataset of 89 million B[bar B] events recorded with the BABAR detector at the [Upsilon](4S) resonance. Events are selected by fully reconstructing the decay of one B meson and identifying a charged lepton from the decay of the other [bar B] meson. IN the first analysis, the measurement of the first and second moment of the hadronic mass distribution in Cabibbo-favored [bar B] [yields] X[sub c][ell][bar [nu]] decays allows for the determination of the nonperturbative parameters [bar [Lambda]] and [lambda][sub 1] of Heavy Quark Effective Theory (HQET) and V[sub cb]. In the second analysis, the hadronic mass distribution is used to measure the inclusive charmless semileptonic branching fraction and to determine V[sub ub].
Download or read book Semileptonic B Decays in BaBar written by and published by . This book was released on 2008 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent results from BABAR on the determination of the CKM matrix elements.
Book Synopsis Semileptonic B Decays From BaBar by :
Download or read book Semileptonic B Decays From BaBar written by and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report results from the BABAR Collaboration on the semileptonic B decays, highlighting the measurements of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix elements V{sub ub} and V{sub cb}. They describe the techniques used to obtain the matrix element.
Book Synopsis Semileptonic B-Meson Decays at BaBar by :
Download or read book Semileptonic B-Meson Decays at BaBar written by and published by . This book was released on 2013 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Results in Semileptonic B Decays with BaBar by :
Download or read book Recent Results in Semileptonic B Decays with BaBar written by and published by . This book was released on 2012 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this note, recent results of studies of semileptonic B meson decays from BABAR are discussed and preliminary results given. In particular, a recent measurement of?(B → D{sup (*)}??) and the ratio?(B → D{sup (*)}??)/?(B → D{sup (*)}l?) is presented. For the D* mode, a branching fraction of 1.79 ± 0.13(stat) ± 0.17(syst) is found, with a ratio of 0.325 ± 0.023(stat) ± 0.027(syst). For the D mode, the results are 1.04 ± 0.12(stat) ± 0.14(syst) and 0.456 ± 0.053(stat) ± 0.056(syst), respectively. In addition, a study of B{sub s} production and semileptonic decays using data collected in a center-of-mass energy region above the?(4S) resonance is discussed. The semileptonic branching fraction?(B{sub s} → l?X) is measured to be 9.9{sub -2.1}{sup +2.6}(stat){sub -2.0}{sup +1.3}(syst).
Book Synopsis Inclusive Semileptonic B Decays at BABAR and Extraction of HQE Parameters by :
Download or read book Inclusive Semileptonic B Decays at BABAR and Extraction of HQE Parameters written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of the first four moments of the hadronic mass distribution in B [yields] C[sub c][ell][bar [nu]] decays is presented for minimum lepton momenta varying between 0.9 and 1.6 GeV, using data recorded with the BABAR detector. Furthermore, a measurement of the inclusive electron energy spectrum for semileptonic B decays together with a measurement of its first, second and third moments for minimum electron energies between 0.6 and 1.5 GeV is reported. We determine the inclusive B [yields] X[sub c][ell][bar [nu]] branching fraction, [Beta][sub c[ell][nu]], the CKM matrix element V[sub cb], and other heavy-quark parameters from a simultaneous fit to the measured moments.
Book Synopsis A Study of Semileptonic B Decays And of Lepton Flavor Violating Tau Decays at BaBar by :
Download or read book A Study of Semileptonic B Decays And of Lepton Flavor Violating Tau Decays at BaBar written by and published by . This book was released on 2005 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the semileptonic B decays at BABAR is presented. The results shown include measurements of the moments of hadronic-mass and electron-energy of the decay B → X{sub c}l[nu]; a determination of the.
Book Synopsis Semileptonic B Decays, B Mixing And Magnitudes of CKM Elements at BaBar by :
Download or read book Semileptonic B Decays, B Mixing And Magnitudes of CKM Elements at BaBar written by and published by . This book was released on 2005 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis B-Meson Semileptonic Decays at BaBar by :
Download or read book B-Meson Semileptonic Decays at BaBar written by and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on the measurements of B-meson semileptonic decays at BABAR. The studies include precision measurement of.
Book Synopsis Measurement of B -] D Form Factors in the Semileptonic Decay B -] D* L Nu at BaBar by :
Download or read book Measurement of B -] D Form Factors in the Semileptonic Decay B -] D* L Nu at BaBar written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract Not Provided.
Book Synopsis Studies of Inclusive Semileptonic B Meson Decays with the BABAR Detector by :
Download or read book Studies of Inclusive Semileptonic B Meson Decays with the BABAR Detector written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a brief report on the measurement of the inclusive branching fraction[Beta]([bar B][yields] X[sub c][ell][sup -][bar[nu]]) and the preliminary measurement of the first moment of the hadron mass M[sub X] in such decays. The implications of these results onV[sub cb] are discussed.
Book Synopsis Measurements of Partial Branching Fractions for Charmless Semileptonic B Decays with the BaBar Experiment and Determination of Vub by : Nicola Gagliardi
Download or read book Measurements of Partial Branching Fractions for Charmless Semileptonic B Decays with the BaBar Experiment and Determination of Vub written by Nicola Gagliardi and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis First Observation of the Semileptonic Decay B ̄-] D_1hn+_1tns K ̄l ̄_̄n63l with the BABAR Detector by : Heiko Jasper
Download or read book First Observation of the Semileptonic Decay B ̄-] D_1hn+_1tns K ̄l ̄_̄n63l with the BABAR Detector written by Heiko Jasper and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Charmless Semileptonic B Decays and a Measurement of the CKM Matrix Element Vub at BaBar by :
Download or read book Study of Charmless Semileptonic B Decays and a Measurement of the CKM Matrix Element Vub at BaBar written by and published by . This book was released on 2004 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lepton and Photon Interactions at High Energies by : Richard Brenner
Download or read book Lepton and Photon Interactions at High Energies written by Richard Brenner and published by World Scientific. This book was released on 2006 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lepton-Photon symposiums ? as represented by the contributions in this volume ? are among the most popular conferences in high energy physics since they give an in-depth snapshots of the status of the field as provided by leading experts.The volume covers the latest results on flavor factories, quantum chromodynamics (QCD), electroweak physics, dark matter searches, neutrino physics and cosmology, from a phenomenological point of view. It also offers a glimpse of the immediate future of the field through summaries on the status of the next generation of high energy accelerators and planned facilities for astroparticle physics.The review nature of the articles makes the volume particularly useful to students, as well as being of interest to established researches in high-energy physics and related fields.
Book Synopsis Exclusive Charmless Semileptonic Decays B ---] X/U L Nu From BaBar by :
Download or read book Exclusive Charmless Semileptonic Decays B ---] X/U L Nu From BaBar written by and published by . This book was released on 2006 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest results of exclusive charmless semileptonic decays B → [pi]lv and B → [rho]lv from the BABAR Collaboration are presented. They are based on samples of B{bar B} events recorded on the [Upsilon](4S) resonance. Several different experimental techniques are compared. Measurements of partial branching fractions in intervals of q2, the four-momentum transfer squared, allow a study of the shape of the B → [pi]lv form factor and a comparison with theoretical calculations. The Cabibbo-Kobayashi-Maskawa matrix element.
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