Charmless Hadronic B Decays at Belle and BaBar
Charmless Hadronic B Decays at Belle and BaBar

Author:

Publisher:

Published: 2011

Total Pages: 4

ISBN-13:

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I report on recent measurements from the Belle and BABAR collaborations on the decay of the B meson to hadronic final states without a charm quark. The study of the branching fractions and angular distributions of B meson decays to hadronic final states without a charm quark probes the dynamics of both the weak and strong interactions, and plays an important role in understanding CP Violation (CPV) in the quark sector. CP Violation at the B factories is described graphically by a triangle with sides formed from the CKM matrix elements V{sub qd}V*{sub qb} (q = u, c, t) and internal angles [alpha], [beta] [gamma] (or [phi]2, [phi]1, [phi]3). Discrepancies in the measured values of the sides and angles could be an indication of New Physics beyond the Standard Model (SM) due to enhanced branching fractions or modified CP asymmetries. The experimental measurements of branching fractions, CP asymmetries, polarization and phases (both weak and strong) can be compared to theoretical models based on, for example, QCD factorization, SU(3) symmetry and Lattice QCD.

Studies of CP-Violation in Charmless Three-Body b-Hadron Decays
Studies of CP-Violation in Charmless Three-Body b-Hadron Decays

Author: Daniel O'Hanlon

Publisher: Springer

Published: 2018-11-02

Total Pages: 225

ISBN-13: 3030022064

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This book highlights two essential analyses of data collected during the LHCb experiment, based on the Large Hadron Collider at CERN. The first comprises the first observation and studies of matter-antimatter asymmetries in two three-body b-baryon decays, paving the way for more precise measurements of the relatively unknown decay properties of b-baryon decays. The second is an analysis of a charged B meson decay to three charged pions, where previously large matter-antimatter asymmetries were observed in a model-independent analysis. Here a model of the decay amplitude is constructed using the unitarity-conserving ‘K-matrix’ model for the scalar contributions, so as to gain an understanding of how the previously observed matter-antimatter asymmetries arise; further, the model’s construction yields the most precise and comprehensive study of this decay mode to date.

Deep Inelastic Scattering
Deep Inelastic Scattering

Author: Masahiro Kuze

Publisher: World Scientific

Published: 2007

Total Pages: 996

ISBN-13: 9812706704

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These proceedings present the most up-to-date status of deep inelastic scattering (DIS) physics. Topics such as structure function measurements and phenomenology, quantum chromodynamics (QCD) studies in DIS and photoproduction, spin physics and diffractive interactions are reviewed in detail, with emphasis on those studies that push the test of QCD and the Standard Model to the limits of their present range of validity, towards both the very high and the very low four-momentum transfers in leptonproton scattering.

Proceedings of the 31st International Conference on High Energy Physics ICHEP 2002
Proceedings of the 31st International Conference on High Energy Physics ICHEP 2002

Author: S. Bentvelsen

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 1004

ISBN-13: 0444599169

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The first precision measurements on CP violation in the B system are reported. Both the BELLE and the BABAR collaboration presented, among others, results for sin 2ß with much improved accuracy. Results from the Sudbury Neutrino Observatory, SNO, also deserve to be mentioned. The convincing evidence of solar neutrino oscillations had been presented by SNO prior to the conference; a full presentation was given at the conference. An incredibly precise measurement of the anomalous magnetic moment of the muon is reported, a fresh result from the Brookhaven National Laboratory. Apart from these distinct physics highlights, there are also the first results from the new Tevatron run and from the relativistic heavy ion collider RHIC. Theorists write of our ever better understanding of the Standard Model and of what might lie beyond. Risky as it is to highlight only a couple of exciting subjects, it is merely meantto whet the appetite for further reading.

16th Conference on Flavor Physics and CP Violation
16th Conference on Flavor Physics and CP Violation

Author: Anjan Giri

Publisher: Springer Nature

Published: 2019-11-13

Total Pages: 493

ISBN-13: 3030296229

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Presenting the proceedings of FPCP 2018, this book reviews the status quo of flavor physics and discusses the latest findings in this exciting area. Flavor physics has been instrumental in the formulation and understanding of the standard model, and it is possible that the direction of new physics will be significantly influenced by flavor sector, also known as the intensity frontier, making it possible to indirectly test the existence of new physics up to a very high scale, beyond that of the energy frontier scale accessible at the LHC. The book is intended for academics around the globe involved in particle physics research, professionals associated with the related technologies and those who are interested in learning about the future of physics and its prospects and directions.

Charmless B Decays
Charmless B Decays

Author:

Publisher:

Published: 2007

Total Pages: 11

ISBN-13:

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Rare charmless hadronic B decays are a good testing ground for the standard model. The dominant amplitudes contributing to this class of B decays are CKM suppressed tree diagrams and b 2!s or b 2!d loop diagrams (''penguins''). These decays can be used to study interfering standard model (SM) amplitudes and CP violation. They are sensitive to the presence of new particles in the loops, and they provide valuable information to constrain theoretical models of B decays. The B factories BABAR at SLAC and Belle at KEK produce B mesons in the reaction ee− 2![Upsilon](4S) 2!B{bar B}. So far they have collected integrated luminosities of about 406 fb−1 and 600 fb−1, respectively. The results presented here are based on subsets of about 200-500 fb−1 and are preliminary unless a journal reference is given.

Fundamental Interactions
Fundamental Interactions

Author: Alan Astbury

Publisher: World Scientific

Published: 2008

Total Pages: 487

ISBN-13: 9812776095

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This proceedings volume contains the latest results from the field of particle physics. The contributions cover the current status of all the Large Hadron Collider (LHC) experiments, the implications of the LHC for cosmology, and the search for dark matter and nuclear astrophysics. It also includes work on the current status of the future International Linear Collider (ILC).