Download or read book Measurement of the CKM Angles at BaBar And Belle written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary goal of the BaBar and Belle experiments is to overconstrain the CKM Unitarity Triangle. Measurements of the angles of this triangle, known as [beta], [alpha], and [gamma] (or [phi]1, [phi]2, and [phi]3) give insight into the Standard Model description of CP violation in the quark sector. BaBar and Belle have recorded almost 1 ab−1 combined, and have measured [beta] to high precision. Measurements of [alpha] and [gamma] are less precise at present, but both experiments are rapidly accumulating data and developing new analysis techniques, and measurements of these angles will continue to provide useful constraints on the Standard Model description of CP violation in the years to come.
Download or read book Status of CKM Angle Measurements a Report from BaBar and Belle written by and published by . This book was released on 2010 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: I will review the latest developments in determining the CP-violating phases of the CKM matrix elements from measurements by the BaBar and BELLE experiments at the high-luminosity B factories (PEP-II and KEKB). The emphasis will be on the angle?/?3 of the Unitarity Triangle, which is the relative phase arg( -V{sub ud}V*{sub ub}/V{sub cd}V*{sub cb}), or the CP-violating phase of the b → u transition in the commonly used Wolfenstein convention.
Download or read book Measurements of CKM Angles Beta phi 1 and Alpha phi 2 at the Babar and Belle Experiments written by and published by . This book was released on 2009 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report measurements of the CKM angles?/?1 and?/?2 done by the BABAR and Belle experiments. Both experiments have collected large data samples, corresponding to a total of more than 1 billion of B{bar B} pairs, at the ee− asymmetric-energy colliders PEP-II (SLAC) and KEK-B (KEK), respectively.
Download or read book Measurement of the CKM Angle Alpha at the BABAR Detector Using B Meson Decays to Rho Final States written by Attila Mihalyi and published by . This book was released on 2005 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book B Decay and CP Violation written by and published by . This book was released on 2011 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: A remarkable success has been achieved by the B-Factories, going beyond expectation in some field, like the measurement of [gamma]. BABAR has now finished its data taking, leaving BELLE alone in the 'race', but still many analyses are going on. The CKM UT is constrained by both measurements of CP-conserving and CP-violating quantities, leading to a picture of the CKM sector consistent with the SM. Measurements of semi-leptonic decays benefit from improving experimental techniques and more precise theoretical computations. The angle [beta] is a precision measurement, reaching accuracy of SM calculation. The angle [alpha] will ultimatly be limited by penguin pollution. The measurement of [gamma] is reaching the 13{sup o} precision.
Download or read book Measurement of the CKM Angles Gamma And 2 Beta Gamma at B Factories written by Jean-Pierre Lees and published by . This book was released on 2006 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: On behalf of the BABAR and Belle collaborations, the authors report on the measurement of the angle {gamma} and of the sum of angles 2{beta} + {gamma} of the Unitarity Triangle.
Download or read book Measurements of the CKM Angle Beta written by Rainer Bartoldus and published by . This book was released on 2005 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this article I report on new and updated measurements of the CP-violating parameter {beta}({phi}{sub 1}), which is related to the phase of the Cabibbo-Kobayashi-Maskawa (CKM) quark-mixing matrix of the electroweak interaction. Over the past few years, {beta} has become the most precisely known parameter of the CKM unitarity triangle that governs the B system. The results presented here were produced by the two B Factories, BABAR and Belle, based on their most recent datasets of over 600 million B{bar B} events combined. The new world average for sin2{beta}, measured in the theoretically and experimentally cleanest charmonium modes, such as B{sup 0} {yields} J/{Psi}K{sub S}{sup 0}, is sin 2{beta} = 0.685 {+-} 0.032. In addition to these tree-level dominated decays, independent measurements of sin2{beta} are obtained from gluonic b {yields} s penguin decays, including B{sup 0} {yields} {phi}K{sub S}{sup 0}, B{sup 0} {yields} {eta}'K{sub S}{sup 0} and others. There are hints, albeit somewhat weaker than earlier this year, that these measurements tend to come out low compared to the charmonium average, giving rise to the tantalizing possibility that New Physics amplitudes could be contributing to the corresponding loop diagrams. Clearly, more data from both experiments are needed to elucidate these intriguing differences.
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 CKM UT Angles written by and published by . This book was released on 2011 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: We review the experimental status of the angles of the Unitarity Triangle of the CKM matrix, as measured by the BABAR and Belle experiments. The B Factories have demonstrated since the beginning of this decade that CP violation in the B meson system is consistent with the Standard Model (SM) description in terms of the complex phase in the three-by-three Cabibbo-Kobayashi-Maskawa (CKM) matrix. With one single phase, the SM predicts clear patterns for quark mixing and CP violations, to be satisfied by all processes.
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 CKM Parameters and Rare B Decays written by and published by . This book was released on 2005 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the angles and sides of the unitarity triangle and of the rates of rare B meson decays are crucial for the precise determination of Standard Model parameters and are sensitive to the presence of new physics particles in the loop diagrams. In this paper the recent measurements performed in this area by BABAR and Belle will be presented. The direct measurement of the angle [alpha] is for the first time as precise as the indirect determination. The precision of the.
Download or read book High Energy Physics written by and published by World Scientific. This book was released on 1981 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Towards New Milestones in Our Quest to Go Beyond the Standard Model written by Antonino Zichichi and published by World Scientific. This book was released on 2007 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a collection of lectures given by distinguished physicists from around the world, covering the most recent advances in theoretical physics and the latest results from current experimental facilities.Following one of the principal aims of the School ? to encourage and promote young physicists to achieve recognition at an international level ? the students who distinguished themselves for the excellence of their research were given the opportunity to publish their presentations in this volume.
Download or read book Fundamental Interactions written by A. Astbury and published by World Scientific. This book was released on 2006 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains pedagogical lectures on theoretical and experimental particle physics, cosmology and atomic trap physics. It also includes additional contributions that provide up-to-date information on new experimental results from accelerators, underground laboratories, and nuclear astrophysics. This combination of pedagogical talks and topical short talks provides comprehensive information to researchers in the fields of particle physics, cosmology and atomic trap physics. Readership: Graduate students, researchers and academics in high energy physics, particle physics and astrophysics.
Download or read book Intersections of Particle and Nuclear Physics written by Tony M. Liss and published by American Institute of Physics. This book was released on 2006-12-13 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a conference that explores areas of common interest between nuclear physicists, high energy (particle) physicists, and astrophysicists. These areas range from studies of the strong interactions that bind the nuclei together, to physics of the very early Universe. They include such topics as the detailed behavior of neutrinos and searches for "new physics", that is phenomena that cannot be accounted for by our current theories.
Download or read book CP Violation From Quarks to Leptons written by M. Giorgi and published by IOS Press. This book was released on 2006-07-25 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: For a long time after the discovery in 1964, by Christenson, Cronin, Fitch and Turlay, that the long-lived neutral kaon decays both into three and into two pions, which has since been taken as proof of CP violation, successive new and more precise experiments confirmed the original evidence and provided results compatible with a phenomenological description confining the CP violation to the mixing between neutral kaons and antikaons. However the Standard Model, with three generations of quarks, linking as it does CP violation to the presence of a single non trivial phase in the Cabibbo-Kobayashi-Maskawa quark mixing matrix, implies that if CP violation exists at all, then it is a general property of weak interactions, appearing in transitions were amplitudes involving all three quark families interfere with each other, producing effects with a magnitude related to that of the CKM coefficients. This fact has stimulated an impressive amount of theoretical work leading in many cases to precise predictions. This publication reviews the field, from both the theoretical and experimental point of view, while planning for the forthcoming experimentation at LHC and considering possible new facilities for kaon, B meson and neutrino physics. Abstracted in Inspec
Download or read book Fundamental Interactions Proceedings Of The Seventeenth Lake Louise Winter Institute written by Alan Astbury and published by World Scientific. This book was released on 2003-02-21 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lake Louise Winter Institute is held annually to explore recent trends in high energy physics in an informal setting. Pedagogical and review lectures are presented by invited experts. A topical workshop is held in conjunction with the Institute, with presentations by participants.
