Author: Jana B. LorencPublisher:
ISBN:
Category :
Languages : en
Pages : 402
Book Description
A Measurement of Inclusive Radiative Penguin Decays of B Mesons
Author: Jana B. LorencRadiative Penguin Decays of B Mesons
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Electromagnetic radiative penguin decays of the B meson were studied with the BaBar detector at SLAC's PEP-II asymmetric-energy B Factory. Branching fractions and isospin asymmetry of the decay B → K*[gamma], branching fractions of B → K*2(1430)[gamma], and a search for B° → [phi][gamma] are presented. The decay rates may be enhanced by contributions from non-standard model processes.
First Measurement of the Rate for the Inclusive Radiative Penguin Decay B --> S [gamma]
![First Measurement of the Rate for the Inclusive Radiative Penguin Decay B --> S [gamma] PDF](https://books.google.com/books/content/images/frontcover/pJFnHwAACAAJ?fife=w80-h100)
Author: Jesse Abram ErnstMeasurement of Inclusive Radiative B-meson Decay B [arrow Right] X[subscript S] [gamma]
![Measurement of Inclusive Radiative B-meson Decay B [arrow Right] X[subscript S] [gamma] PDF](https://books.google.com/books/content/images/frontcover/wYZEAQAAIAAJ?fife=w80-h100)
Author: Veysi Erkcan OzcanRadiative And Electroweak Penguin Decays of B.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
Radiative and electroweak penguin decays of B mesons are flavor-changing-neutral-current processes that provide powerful ways to test the Standard Model at the one-loop level, to search for the effects of new physics, and to extract Standard Model parameters such as CKM matrix elements and quark masses. The large data samples obtained by the B-factory experiments BaBar and Belle, together with an intensive theoretical effort, have led to significant progress towards understanding these rare decays. Recent experimental results include the measurements of the b 2!d[gamma] decays B 2[gamma], the observation of B 2!K(*)ll− decays (together with studies of the associated kinematic distributions), and improved measurements of the inclusive B 2!Xs[gamma] rate and photon energy spectrum.
Measurement of Exclusive Electromagnetic Penguin Decays of the B Meson
Author: Christopher Duncan JonesPublisher:
ISBN:
Category :
Languages : en
Pages : 454
Book Description
Measurement of Inclusive Radiative B -Meson Decay B -] X_s Gamma
![Measurement of Inclusive Radiative B -Meson Decay B -] X_s Gamma PDF](https://books.google.com/books/content/images/frontcover/YT6HAQAACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 206
Book Description
Radiative decays of the B meson, B 2!X{sub s}[gamma], proceed via virtual flavor changing neutral current processes that are sensitive to contributions from high mass scales, either within the Standard Model of electroweak interactions or beyond. In the Standard Model, these transitions are sensitive to the weak interactions of the top quark, and relatively robust predictions of the inclusive decay rate exist. Significant deviation from these predictions could be interpreted as indications for processes not included in the minimal Standard Model, like interactions of charged Higgs or SUSY particles. The analysis of the inclusive photon spectrum from B 2!X{sub s}[gamma] decays is rather challenging due to high backgrounds from photons emitted in the decay of mesons in B decays as well as ee− annihilation to low mass quark and lepton pairs. Based on 88.5 million B{bar B} events collected by the BABAR detector, the photon spectrum above 1.9 GeV is presented. By comparison of the first and second moments of the photon spectrum with QCD predictions (calculated in the kinetic scheme), QCD parameters describing the bound state of the b quark in the B meson are extracted: m{sub b} = (4.45 ± 0.16) GeV/c2; [mu]{sub {pi}}2 = (0.65 ± 0.29) GeV2. These parameters are useful input to non-perturbative QCD corrections to the semileptonic B decay rate and the determination of the CKM parameter.
Proceedings Of The 28th International Conference On High Energy Physics (In 2 Volumes)
Author: Zygmunt AjdukPublisher: World Scientific
ISBN: 9814547107
Category :
Languages : en
Pages : 1878
Book Description
The 28th conference from the Rochester series was the major high energy physics conference in 1996. Volume one contains short reports on new theoretical and experimental results. Volume two consists of the review talks presented in the plenary sessions.
Radiative and Leptonic B-meson Decays from the B-factories
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
Radiative and leptonic decays of B-mesons represent an excellent laboratory for the search for New Physics. I present here recent results on radiative and leptonic decays from the Belle and BABAR collaborations. Radiative penguin and leptonic B-meson decays are excellent probes for investigating the effects of New Physics. Although current measurements are in agreement with the Standard Model expectations, they are still quite useful for setting bounds on possible NP models. The B → X{sub s}[gamma] and B → [tau][nu] measurements, for example, put strong constraints on the mass of charged Higgs bosons in Type II two-Higgs double models. The B → X{sub s}[gamma] branching fraction measurements also constrain models with universal extra dimensions.
CP Violation
Author: Società italiana di fisicaPublisher: IOS Press
ISBN: 9781586036287
Category : Science
Languages : en
Pages : 626
Book Description
Dealing with the CP violation, from quarks to leptons, this publication reviews the field, from both the theoretical and experimental point of view, while planning for the experimentation at LHC and considering possible facilities for kaon, B meson and neutrino physics.