Hadronic B Decays To Open Charm At The Babar Experiment
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: 2002 |
ISBN-10 |
: OCLC:68483125 |
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Rating |
: 4/5 (25 Downloads) |
Synopsis Hadronic B Decays to Open Charm at the BaBar Experiment by :
Using about 23M B[bar B] events collected in 1999-2000 with the BABAR detector, they report on the decays B[yields] D(*)[bar D](*)K and B[sup 0][yields] D*[sup+]D*[sup -]. The branching fractions of the low background decay modes B[sup 0][yields] D*[sup -] D(*)[sup 0]K[sup+] are determined to be[Beta](B[sup 0][yields] D*[sup -] D[sup 0]K[sup+])= (2.8[+-] 0.7[+-] 0.5) x 10[sup -3] and[Beta](B[sup 0][yields] D*[sup -]D*[sup 0]K[sup+])= (6.8[+-] 1.7[+-] 1.7) x 10[sup -3], where the first error quoted is statistical and the second systematic. Observation of a significant number of candidates in the color-suppressed decay mode B[sup+][yields] D*[sup+]D*[sup -] K[sup+] is reported with a branching fraction[Beta](B[sup+][yields] D*[sup+]D*[sup -] K[sup+])= (3.4[+-] 1.6[+-] 0.9) x 10[sup -3]. Decays of the type B[yields] D(*)[bar D](*) can be used to provide a measurement of the parameter sin2[beta] of the Unitarity Triangle. For this decay mode they measure a branching fraction of[Beta](B[sup 0][yields] D*[sup+]D*[sup -])= (8.0[+-] 1.6[+-] 1.2) x 10[sup -4].
Author |
: |
Publisher |
: World Scientific |
Total Pages |
: 81 |
Release |
: 1981 |
ISBN-10 |
: 9789814476515 |
ISBN-13 |
: 981447651X |
Rating |
: 4/5 (15 Downloads) |
Synopsis High Energy Physics by :
Author |
: S. Bentvelsen |
Publisher |
: Elsevier |
Total Pages |
: 1004 |
Release |
: 2012-12-02 |
ISBN-10 |
: 9780444599162 |
ISBN-13 |
: 0444599169 |
Rating |
: 4/5 (62 Downloads) |
Synopsis Proceedings of the 31st International Conference on High Energy Physics ICHEP 2002 by : S. Bentvelsen
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.
Author |
: S. Ricciardi |
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: |
Total Pages |
: 4 |
Release |
: 2005 |
ISBN-10 |
: OCLC:316308700 |
ISBN-13 |
: |
Rating |
: 4/5 (00 Downloads) |
Synopsis B Decays to Open And Hidden Charm at BaBar by : S. Ricciardi
A wealth of new measurements of hadronic B decays to open charm and charmonium have been performed on the data sample collected by the BaBar experiment at the PEP-II e{sup +}e{sup -} B-factory. We report the first measurement of the rates for inclusive charm production separately for charged and neutral B mesons. Combining measurements of the decay rate of B{sup 0} {yields} D*{sub s}{sup +}D*{sup -} obtained with a partial reconstruction technique and the complete reconstruction of B{sup 0} {yields} D*{sub s}{sup +}D*{sup -} with D{sub s}{sup +} {yields} {phi}{pi}{sup +}, we obtain the most precise measurement of {Beta}(D{sub s}{sup +} {yields} {phi}{pi}{sup +}). We present an update of the measurements of the branching fractions of exclusive B decays to J/{psi}, {psi}(2S), {chi}{sub c1}, {chi}{sub c2} and a kaon or a K*. In addition, we show preliminary results on exclusive decay rates to final states with baryons, or newly-discovered particles, such as D*{sub sJ}(2317), D{sub sJ}(2460){sup +}, and the X(3872).
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: |
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: |
Total Pages |
: 474 |
Release |
: 2003 |
ISBN-10 |
: UCSD:31822032002107 |
ISBN-13 |
: |
Rating |
: 4/5 (07 Downloads) |
Synopsis Nuclear Physics by :
Author |
: Hesheng Chen |
Publisher |
: World Scientific |
Total Pages |
: 1424 |
Release |
: 2005-05-03 |
ISBN-10 |
: 9789814481274 |
ISBN-13 |
: 9814481270 |
Rating |
: 4/5 (74 Downloads) |
Synopsis High Energy Physics by : Hesheng Chen
The 32nd International Conference on High Energy Physics belongs to the Rochester Conference Series, and is the most important international conference in 2004 on high energy physics. The proceedings provide a comprehensive review on the recent developments in experimental and theoretical particle physics. The latest results on Top, Higgs search, CP violation, neutrino mixing, pentaquarks, heavy quark mesons and baryons, search for new particles and new phenomena, String theory, Extra dimension, Black hole and Lattice calculation are discussed extensively. The topics covered include not only those of main interest to the high energy physics community, but also recent research and future plans. Contents: Neutrino Masses and MixingsQuark Matter and Heavy Ion CollisionsParticle Astrophysics and CosmologyElectroweak PhysicsQCD Hard InteractionsQCD Soft InteractionsComputational Quantum Field TheoryCP Violation, Rare Kaon Decay and CKMR&D for Future Accelerator and DetectorHadron Spectroscopy and ExoticsHeavy Quark Mesons and BaryonsBeyond the Standard ModelString Theory Readership: Experimental and theoretical physicists and graduate students in the fields of particle physics, nuclear physics, astrophysics and cosmology.Keywords:High Energy Physics;Particle Physics;Electroweak;QCD;Heavy Quark;Neutrino;Particle Astrophysics;Hadron Spectroscopy;CP Violation;Quark Matter;Future Accelerator
Author |
: Paul G Langacker |
Publisher |
: World Scientific |
Total Pages |
: 1032 |
Release |
: 1995-02-23 |
ISBN-10 |
: 9789814602815 |
ISBN-13 |
: 9814602817 |
Rating |
: 4/5 (15 Downloads) |
Synopsis Precision Tests Of The Standard Electroweak Model by : Paul G Langacker
High precision measurements of weak neutral current and charged current processes and of the properties of the Z and W bosons have established the standard electroweak model as correct down to a distance scale of 10-16 cm, and are a sensitive probe of possible underlying physics. In this book, all aspects of the program are considered in detail, including the structure of the standard model, radiative corrections, high precision experiments, and their implications. The major classes of experiments are surveyed, covering the experiments themselves, the data analysis, results, and prospects.This volume is a detailed reference for theoretical and experimental researchers, as well as an introductory text for advanced students.
Author |
: Hamish Gordon |
Publisher |
: Springer |
Total Pages |
: 167 |
Release |
: 2014-06-07 |
ISBN-10 |
: 9783319070674 |
ISBN-13 |
: 3319070673 |
Rating |
: 4/5 (74 Downloads) |
Synopsis Searches for CP Violation in Charmed Meson Decays by : Hamish Gordon
Our current understanding of the fundamental building blocks of the Universe, summarised by the Standard Model of particle physics, is incomplete. For example, it fails to explain why we do not see equal, or almost equal, numbers of particles and their antiparticle partners. To explain this asymmetry requires, among other effects, a mechanism known as charge-parity (CP) violation that causes differences between the rates at which particles and antiparticles decay. CP violation is seen in systems containing bottom and strange quarks, but not in those with up, charm or top quarks. This thesis describes searches for particle-antiparticle asymmetries in the decay rates of charmed mesons. No evidence of CP violation is found. With current sensitivities, an asymmetry large enough to observe probably could not be explained by the Standard Model. Instead an explanation could come from new physics, for example contributions from supersymmetric or other undiscovered heavy particles. In the thesis, the development of new techniques to search for these asymmetries is described. They are applied to data from the LHCb experiment at CERN to make precise measurements of asymmetries in the D^+->K^-K^+pi^+ decay channel. This is the most promising charged D decay for CP violation searches.
Author |
: Chong-sa Lim |
Publisher |
: World Scientific |
Total Pages |
: 1550 |
Release |
: 2001-04-30 |
ISBN-10 |
: 9789813201170 |
ISBN-13 |
: 9813201177 |
Rating |
: 4/5 (70 Downloads) |
Synopsis High Energy Physics: Ichep 2000 - Proceedings Of The 30th International Conference (In 2 Volumes) by : Chong-sa Lim
This book presents topics of major interest to the high energy physics community, as well as recent research results.
Author |
: Alexander I Studenikin |
Publisher |
: World Scientific |
Total Pages |
: 439 |
Release |
: 2005-04-12 |
ISBN-10 |
: 9789814480949 |
ISBN-13 |
: 9814480940 |
Rating |
: 4/5 (49 Downloads) |
Synopsis Particle Physics In Laboratory, Space And Universe - Proceedings Of The Eleventh Lomonosov Conference On Elementary Particle Physics by : Alexander I Studenikin
This volume brings together the latest developments within a wide spectrum of topics in particle physics. Covering both theoretical and experimental aspects, areas such as neutrino and astroparticle physics, tests of the Standard Model and beyond, heavy quark physics, non-perturbative QCD, quantum gravity effects and cosmology, physics at the future accelerators, etc. are discussed.