Download or read book Recent Results in Electroweak B Decays from the BaBar Experiment written by Karsten Koeneke and published by . This book was released on 2006 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of the most recent BABAR results on electroweak penguin B decays is presented. The focus of this paper is on the measurement of observables in the decays B {yields} X{sub s}{gamma}, B {yields} K{sup (*)}l{sup +}l{sup -} B {yields} K{sub s}{sup 0}{pi}{sup 0}{gamma} (time-dependent analysis) and B {yields} ({rho}/{omega}){gamma}.
Download or read book Recent BaBar Results on B Decays written by and published by . This book was released on 2011 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several recent key results from the BABAR experiment are presented, most using 383.6 fb−1 of data. In particular, the search for B → ?+?, inclusive and exclusive measurements of.
Download or read book Rare And Radiative B Meson Decays From the BaBar Experiment written by J. Stelzer and published by . This book was released on 2006 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its start in 1999 the BABAR experiment has collected a vast amount of data. Electron-positron collisions at the energy of the {Upsilon}(4S) resonance have produced about 240 million coherent B{sup 0}{bar B}{sup 0} and B{sup +}B{sup -} pairs, opening the doors for exploration of rare B meson decays. An overview of the electroweak penguin physics program of BABAR is given, the analysis of two specific decays is presented in detail.
Download or read book Rare B Decays at BaBar written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present recent results on rare B meson decays based on data taken by the BABAR detector at the PEP-II asymmetric ee− collider. Included in this report are measurements of branching fractions and other quantities of interest for several hadronic, radiative, electroweak, and purely leptonic decays of B mesons.
Download or read book Recent Results from the BaBar Experiment 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 present an overview of some of the most recent results from the BABAR experiment. They discuss the latest measurement of the time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates, that in the Standard Model (SM) is proportional to sin 2[beta]. They present measurements of branching fractions and CP-violating asymmetries in neutral B decays to two-body final states of charged pions and kaons, that are related to the angle [alpha] of the Unitarity Triangle. They also report the B[sup 0] lifetime measurement obtained from studying the B[sup 0] [yields] D*[sup -] [pi][sup +] and B[sup 0] [yields] D*[sup -] [rho][sup +] decay channels and the B[sup 0] [yields] D*[sup -] a[sub 1][sup +] branching fraction, obtained using a partial reconstruction technique. These measurements serve as a test and validation of the procedures required to measure the combination of CKM Unitarity Triangle angles sin(2[beta] + [gamma]).
Download or read book Particles and Nuclei written by Peter D. Barnes and published by AIP Conference Proceedings / H. This book was released on 2006-10-04 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the proceedings of the 17th International Conference on Particles and Nuclei, Santa Fe, New Mexico, USA which was concerned with new developments in experimental and theoretical particle physics, nuclear physics, and cosmology, and the intersections of these fields which will help us understand our Universe more completely. The participants reported on new developments in instrumentation, including large-scale facilities, such as accelerators, that will be essential for future work.
Download or read book Fundamental Interactions written by A. Astbury and published by World Scientific. This book was released on 2006 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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."
Download or read book First Physics Results at Babar written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The BABAR detector, which operates at the SLAC PEP-II asymmetric e[sup+]e[sup -] collider at energies near the[Upsilon](4S) resonance, started operation on the 26th of May 1999. They present the first study of sin2[beta], with samples of B[sup 0][yields] J/[psi] K[sub s][sup 0] and B[sup 0][yields][psi](2S) K[sub 2][sup 0] decays, using 9.0 fb[sup -1] of data recorded between January and July 2000 at the[Upsilon](4S) resonance and 0.8 fb[sup -1] recorded 40 MeV below the[Upsilon](4S) resonance. A preliminary result of sin2[beta]= 0.12[+-] 0.37(stat)[+-] 0.09(syst) was obtained. Details of the analysis are given. Moreover, they present measurements of charged and neutral B meson lifetimes and B[sup 0][bar B][sup 0] oscillation frequency.
Download or read book New Physics In B Decays written by Sheldon Stone and published by World Scientific. This book was released on 2022-04-07 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Standard Model (SM) of particle physics has withstood thus far every attempt by experimentalists to show that it does not describe data. We discuss the SM in some detail, focusing on the mechanism of fermion mixing, which represents one of its most intriguing aspects. We discuss how this mechanism can be tested in b-quark decays, and how b decays can be used to extract information on physics beyond the SM. We review experimental techniques in b physics, focusing on recent results and highlighting future prospects. Particular attention is devoted to recent results from b decays into a hadron, a lepton and an anti-lepton, that show discrepancies with the SM predictions — the so-called B-physics anomalies — whose statistical significance has been increasing steadily. We discuss these experiments in a detailed manner, and also provide theoretical interpretation of these results in terms of physics beyond the SM.
Download or read book Study of B Decays to Open Charm Final States With the BaBar Experiment written by and published by . This book was released on 2011 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent results from the BaBar Collaboration in the sector of B decays to open Charm are presented. Some of the results represent new precision measurements and QCD tests, some other analysis is aimed to the study of rare decays and search for new physics. Branching fractions for the modes observed for the first time are highlighted. A few results are presented also in the baryon sector.
Download or read book Lepton And Photon Interactions At High Energies Lepton photon 2003 Proceedings Of The Xxi International Symposium written by Harry W K Cheung and published by World Scientific. This book was released on 2004-02-20 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains contributions to the XXI International Symposium on Lepton and Photon Interactions at High Energies, held at the Fermi National Accelerator Laboratory. It gives up-to-date reviews of all aspects of particle physics, written by leading practitioners in the field. The review nature of all the articles makes this volume more accessible to students and researchers in other fields of physics. In addition to new experimental data and advances in theory, the future directions and prospects for the field are covered.The proceedings have been selected for coverage in:• Index to Scientific & Technical Proceedings® (ISTP® / ISI Proceedings)• Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)• CC Proceedings — Engineering & Physical Sciences
Download or read book Lepton and Photon Interactions at High Energies written by Harry W. K. Cheung and published by World Scientific. This book was released on 2004 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains contributions to the XXI International Symposium on Lepton and Photon Interactions at High Energies, held at the Fermi National Accelerator Laboratory. It gives up-to-date reviews of all aspects of particle physics, written by leading practitioners in the field. The review nature of all the articles makes this volume more accessible to students and researchers in other fields of physics. In addition to new experimental data and advances in theory, the future directions and prospects for the field are covered.The proceedings have been selected for coverage in: ? Index to Scientific & Technical Proceedings? (ISTP? / ISI Proceedings)? Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)? CC Proceedings ? Engineering & Physical Sciences
Download or read book BABAR Results on the Decays B K L L and B K L L written by and published by . This book was released on 2002 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present preliminary results on a search for the rare decays B 2!Kll− and B 2!K*ll− performed with the BABAR experiment at the PEP-II B Factory. The data set consists of approximately 60 million [Upsilon](4S) 2!B{bar B} decays.
Download or read book Recent Results on Rare B Decays from BABAR and BELLE written by and published by . This book was released on 2003 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The PEP-II and KEK asymmetric B factories are providing the BaBar and BELLE collaborations large samples of B mesons, enabling high-statistics searches for rare B decays. The rates for some of these decays can be enhanced by contributions from new physics, while others can provide constraints on the Unitarity Triangle. The author reviews a variety of recent results on rare B decays from these two experiments.
Download or read book B Decays at BaBar written by and published by . This book was released on 2003 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present branching fraction and CP asymmetry results for a variety of B decays based on up to 56.4 fb1 collected by the BABAR experiment running near the [Upsilon](4S) resonance at the PEP-II ee− B-factory.
Download or read book Rare Decays And Exotic States With BaBar written by S. H. Robertson and published by . This book was released on 2006 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results from the BABAR experiment are presented for searches for several rare FCNC B and D meson decays, including the modes B{sup 0} {yields} {ell}{sup +}{ell}{sup -} and D{sup 0} {yields} {ell}{sup +}{ell}{sup -}, B {yields} ({rho}, {omega}){gamma} and B{sup +} {yields} (K, {pi}){sup +}{nu}{bar {nu}}. Limits on lepton flavor violation in neutrino-less {tau} decays are also discussed. Finally, results of BABAR searches for the strange pentaquark states {Theta}{sup +}(1540), {Xi}{sup --}(1860) and {Xi}{sup 0}(1860) are summarized.
Download or read book BABAR Experiment Status and Recent Results written by G. De Nardo and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The BaBar detector at SLAC PEP-II asymmetric B-Factory has collected between 1999 and 2002 a data sample of 88 millions {Upsilon}(4S) {yields} B{bar B} decays. We present here recent measurements of branching fractions and time-dependent CP-violating asymmetries of neutral B mesons decays to several CP eigenstates. We present the results on the decays to (c{bar c}) K{sub S}{sup 0}/K{sub L}{sup 0}, which are related in the Standard Model to the angle {beta} of the Unitarity Triangle of the Cabibbo-Kobayashi-Maskawa quark mixing matrix. Moreover we present the branching fractions and the CP-asymmetries of charmless two body decays related to the angle {alpha}.
