Model-Independent Results for the Decay B \to L Nu(L) Gamma at BaBar PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages : 6
Book Description
We present a search for the radiative leptonic decays B+ → e?{sub e}? and B+ →?+?{sub?}? using data collected by the BABAR detector at the PEP-II B factory. We fully reconstruct the hadronic decay of one of the B mesons in?(4S) → B+B− and then search for evidence of the signal decay within the rest of the event. This method provides clean kinematic information on the signal's missing energy and high momentum photon and lepton, and allows for a model-independent analysis of this decay. Using a data sample of 465 million B-meson pairs, we obtain sensitivity to branching fractions of the same order as predicted by the Standard Model. We report a model-independent branching fraction upper limit of?(B+ → l+?{sub l}?)
Author: Publisher: ISBN: Category : Languages : en Pages : 6
Book Description
We present a search for the radiative leptonic decays B+ → e?{sub e}? and B+ →?+?{sub?}? using data collected by the BABAR detector at the PEP-II B factory. We fully reconstruct the hadronic decay of one of the B mesons in?(4S) → B+B− and then search for evidence of the signal decay within the rest of the event. This method provides clean kinematic information on the signal's missing energy and high momentum photon and lepton, and allows for a model-independent analysis of this decay. Using a data sample of 465 million B-meson pairs, we obtain sensitivity to branching fractions of the same order as predicted by the Standard Model. We report a model-independent branching fraction upper limit of?(B+ → l+?{sub l}?)
Author: Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
The author discusses two recent results in b → s[gamma] decays from BABAR. The first is a measurement of the branching fraction and photon energy spectrum in the B meson frame of the decay B → X{sub s[gamma]}. The second result probes the photon polarization via time-dependent CP violation in neutral B decays to K*°{gamma}.
Author: Publisher: ISBN: Category : Languages : en Pages : 3
Book Description
We present measurements of the Branching Fraction and photon energy spectrum in B → X{sub S}[gamma] decays in a sample of 89 million B{bar B} pairs collected at the BABAR detector at Stanford Linear Accelerator Center's PEP-II asymmetric B-factory. Results from a fully-inclusive and a sum of 38 exclusive final states techniques are presented and found to be consistent with the Standard Model calculations, as well as experimental results obtained from semileptonic B → X{sub c}lv decays.
Author: Deborah Bard Publisher: ISBN: Category : Languages : en Pages :
Book Description
Radiative penguin decays of B mesons are favour-changing neutral current (FCNC) processes, studies of which provide fertile ground for precision tests of the Standard Model. Because such decays must proceed through 1-loop or higher order processes, they are rare and their amplitudes are particularly sensitive to interference from other FCNC interactions beyond the SM. This thesis presents the search for the rare radiative penguin process b -> d gamma, carried out at the BABAR experiment.
Author: Publisher: ISBN: Category : Languages : en Pages : 146
Book Description
The authors present the results of the search for the decays B°±} → [rho]°±}[gamma] (previously observed) and B° → [omega][gamma] (for which currently only an upper limit exists). Together with B → K*[gamma] decays, B → ([rho]/[omega])[gamma] allow us to measure the ratio of CKM-matrix elements.
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Author: ![A Model Independent Determination of the B → X8[gamma] Decay Rate PDF](https://books.google.com/books/content/images/frontcover/jpeD0AEACAAJ?fife=w80-h100)
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Author: ![Search for the Inclusive B->d[gamma] Decay at BABAR PDF](https://books.google.com/books/content/images/frontcover/FDyVMwEACAAJ?fife=w80-h100)
Author: Deborah Joanne Bard
Author: Deborah Bard![Study of the B-> Xs[gamma] Decay with a Fully Inclusive Technique at the BABAR Detector PDF](https://books.google.com/books/content/images/frontcover/klDjoQEACAAJ?fife=w80-h100)
Author: Francesca Bucci
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