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Author: F. Bucci Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
Recent BABAR results on electroweak penguin and leptonic decays are reviewed. In particular, the measurements of B {yields} K{sup (*)}l{sup +}l{sup -} and the preliminary results on B {yields} X{sub s}l{sup +}l{sup -} are presented. Also summarized are the preliminary limits on B{sup +} {yields} l{sup +}{nu} (l = e, {mu}) and B{sup +} {yields} K{sup +}{nu}{bar {nu}}.
Author: F. Bucci Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
Recent BABAR results on electroweak penguin and leptonic decays are reviewed. In particular, the measurements of B {yields} K{sup (*)}l{sup +}l{sup -} and the preliminary results on B {yields} X{sub s}l{sup +}l{sup -} are presented. Also summarized are the preliminary limits on B{sup +} {yields} l{sup +}{nu} (l = e, {mu}) and B{sup +} {yields} K{sup +}{nu}{bar {nu}}.
Author: F. Di Lodovico Publisher: ISBN: Category : Languages : en Pages : 8
Book Description
Electro-weak penguin and leptonic decays provide an indirect probe for physics beyond the Standard Model and contribute to the determination of Standard Model parameters. Copious quantities of B mesons produced at the B-Factories permit precision measurements of the electro-weak penguin decays and searches for leptonic decays. We review the current experimental status of b {yields} s(d){gamma}, B{sup 0} {yields} D*{sup 0}{gamma}, b {yields} s{ell}{sup +}{ell}{sup -} and finally B{sup +} {yields} {tau}{sup +}{nu}{sub {tau}} decays at BABAR.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Electroweak penguin decays provide a promising hunting ground for Physics beyond the Standard Model (SM). The decay B[yields] X[sub s][gamma], which proceeds through an electromagnetic penguin loop, already provides stringent constraints on the supersymmetric (SUSY) parameter space. The present data samples of[approx]1 x 10[sup 8] B[bar B] events allow to explore radiative penguin decays with branching fractions of the order of 10[sup -6] or less. In this brief report they discuss a study of B[yields] K*[ell][sup+][ell][sup -] decay modes and a search for B[yields][rho]([omega])[gamma] decays.
Author: Alan Astbury Publisher: World Scientific ISBN: 9814480681 Category : Science Languages : en Pages : 360
Book Description
This volume contains pedagogical lectures on particle physics, nuclear astrophysics, relativistic heavy ion interactions and gravitational waves. In addition, numerous contributions provide up-to-date information on new experimental results at colliders, underground laboratories and nuclear astrophysics. This combination of pedagogical talks and topical short talks provide a comprehensive amount of information to the researchers.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Recent BABAR results on rare B decays involving flavour-changing neutral currents or purely leptonic final states are presented. New measurements of the CP asymmetries in B [yields] K*[gamma], B [yields] K*[sub 2](1430)[gamma], and b [yields] s[gamma] are reported, as well as a new measurement of the B [yields] K*[gamma] branching fraction. Also reported are updated limits on B [yields] [mu][nu] and recent measurements of B [yields] K(*)[ell][ell] and b [yields] s[ell][ell]. The data sample comprises 123 [center-dot] 10[sup 6] [Upsilon](4S) [yields] B[bar B] decays collected with the BABAR detector at the PEP-II e[sup +]e[sup -] storage ring.
Author: A. Astbury Publisher: World Scientific ISBN: 9812772545 Category : Science Languages : en Pages : 397
Book Description
This proceedings volume contains the latest developments in particle physics in collider experiments. The contributions cover new results such as the production of quark-gluon plasma in the heavy-ion collider, the new techniques for precision measurement at low energies, and the status of neutrino physics at various laboratories including the new facilities that are at the planning stage. Sample Chapter(s). Chapter 1: Making Precision Measurements at Hadron Colliders: Two Lectures (1,408 KB). Contents: Making Precision Measurements at Hadron Colliders: Two Lectures (H J Frisch); Evidence for a QuarkOCoGluon Plasma at RHC (J Harris); Neutrino Physics: A Selective Overview (S Oser); Low-Energy Tests of the Standard Model (M Pospelov); Leptonic B Decays (M-C Chang); Cosmic Neutrinos Beyond the Standard Model (U Harbach); Proton Structure from HERA (K Nagano); New Phenomena Searches at CDF (A Soha); Electroweak Results at LEP2 (P Spagnolo); and other papers. Readership: Graduate students, academics and researchers in particle and nuclear physics."
Author: Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
We summarize results on a number of observations of penguin dominated radiative decays of the B meson. Such decays are forbidden at tree level and proceed via electroweak loops. As such they may be sensitive to physics beyond the standard model. The observations have been made at the BaBar experiment at PEPII, the asymmetric B factory at SLAC.
Author: F. Bucci
Author: F. Bucci
Author: F. Di Lodovico
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Author: Natalia Kuznetsova
Author: Alan Astbury
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Author: A. Astbury
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