Measurement Of The B To Rho Pi0 Branching Fraction And Direct Cp Asymmetry

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Measurement Of The B To Rho Pi0 Branching Fraction And Direct Cp Asymmetry
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Author :
language : en
Publisher:
Release Date : 2007
Measurement Of The B To Rho Pi0 Branching Fraction And Direct Cp Asymmetry written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
The authors present improved measurements of the branching fraction and CP asymmetry for the process B{sup ±} → [rho]{sup ±}[pi]°. The data sample corresponding to 211 fb−1 comprises 232 million [Upsilon](4S) → B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The yield and CP asymmetry are measured using an extended maximum likelihood fitting method. The branching fraction and Cp asymmetry are found to be [Beta](B{sup ±} → [rho]{sup ±}[pi]°) = [10.2 {+-} 1.4(stat) {+-} 0.9(syst)] x 10−6 and [Alpha]{sub CP}(B{sup {+-}} → [rho]{sup {+-}}[pi]°) = -0.01 {+-} 0.13(stat) {+-} 0.02(syst).
Measurement Of The B Rho Pi0 Branching Fraction And Direct Cp Asymmetry
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Author : J. C. Chen
language : en
Publisher:
Release Date : 2005
Measurement Of The B Rho Pi0 Branching Fraction And Direct Cp Asymmetry written by J. C. Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
An improved measurement of the process B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0} is presented. The data sample of 211 fb{sup -1} comprises 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The yield and CP asymmetry are calculated using an extended maximum likelihood fitting method. The branching fraction and asymmetry are found to be {Beta}(B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0}) = [10.0 {+-} 1.4 (Stat.) {+-} 0.9 (Syst.)] x 10{sup -6} and {Alpha}{sub CP}(B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0}) = -0.01 {+-} 0.13 (Stat.) {+-} 0.02 (Syst.), superseding previous measurements. The statistical significance of the signal is calculated to be 8.7{sigma}.
From Quarks To Black Holes Progress In Understanding The Logic Of Nature Proceedings Of The International School Of Subnuclear Physics
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Author : Antonino Zichichi
language : en
Publisher: World Scientific
Release Date : 2005-06-16
From Quarks To Black Holes Progress In Understanding The Logic Of Nature Proceedings Of The International School Of Subnuclear Physics written by Antonino Zichichi and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-06-16 with Science categories.
This volume is a unique report on the frontiers of subnuclear physics presented by global specialists in a clear and rigorous style.The question of Lattice QCD is presented by R D Kenway, and that of Quark-Gluon Plasma Physics by F Karsch. Quantum Field theory is discussed by R G Dijkgraff, and the status of Local Supersymmetry by M J Duff. Detailed analysis of Supersymmetry in Nuclei is made by F Iachello, and that of Inflation, Dark Matter and Dark Energy by E W Kolb. Compactified dimensions are outlined by I Antoniadis, Horizons in the quantization of the gravitational force by Nobel Laureate G 't Hooft, as also are Neutrino Oscillations by G Fogli and Fundamental Constants by H Fritzsch. The experimental data from BNL and Babar are presented by T W Ludlum and M A Giorgi, those from Fermilab and Hera by Parke and G Wolf. The status at CERN is given by L Maiani for the LHC and by W-D Schlatter for the non-LHC experiments. Highlights from Gran Sasso are presented by A Bettini. This volume also contains reports by a selected group of “new talents” on various topics in the field of subnuclear physics.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
Issues In General Physics Research 2011 Edition
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Author :
language : en
Publisher: ScholarlyEditions
Release Date : 2012-01-09
Issues In General Physics Research 2011 Edition written by and has been published by ScholarlyEditions this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-09 with Science categories.
Issues in General Physics Research / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about General Physics Research. The editors have built Issues in General Physics Research: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about General Physics Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in General Physics Research: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Government Reports Announcements Index
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Author :
language : en
Publisher:
Release Date : 1992
Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Science categories.
Government Reports Annual Index
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Author :
language : en
Publisher:
Release Date : 1992
Government Reports Annual Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Government reports announcements & index categories.
High Energy Physics Index
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Author :
language : en
Publisher:
Release Date : 1988
High Energy Physics Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Particles (Nuclear physics) categories.
Measurements Of Branching Fractions And Direct Cp Asymmetries In Pi Pi0 K Pi0 And K0 Pi0 B Decays
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Author :
language : en
Publisher:
Release Date : 2003
Measurements Of Branching Fractions And Direct Cp Asymmetries In Pi Pi0 K Pi0 And K0 Pi0 B Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
The authors present preliminary results of the analyses of B[sup+][yields] h[sup+][pi][sup 0] (with H[sup+]=[pi][sup+], K[sup+]) and B[sup 0][yields] K[sup 0][pi][sup 0] decays from a sample of approximately 88 million b[bar B] pairs collected by the BaBar detector at the PEP-II asymmetric-energy B Factory at SLAC. They measure the[pi][sup+][pi][sup 0] branching fraction and they obtain[Beta](B[sup+][yields][pi][sup+][pi][sup 0])= (5.5[sub -0.9][sup+1.0][+-] 0.6) x 10[sup -6] with a significance of 7.7[sigma] including systematic uncertainties. The measure the K[sup+][pi][sup 0] and K[sup 0][pi][sup 0] branching fractions to be[Beta](B[sup+][yields] K[sup+][pi][sup 0])= (12.8[sub -1.1][sup+1.2][+-] 1.0) x 10[sup -6] and[Beta](B[sup 0][yields] K[sup 0][pi][sup 0])= (10.4[+-] 1.5[+-] 0.8) x 10[sup -6]. At the same time, the direct CP-violating asymmetries are investigated and they find[Alpha][sub[pi][sup+][pi][sup 0]]= -0.03[sub -0.17][sup+0.18][+-] 0.02, [Alpha][sub K[sup+][pi][sup 0]]= -0.09[+-] 0.09[+-] 0.01and[Alpha][sub K[sup 0][pi][sup 0]]= 0.03[+-] 0.36[+-] 0.09, where the errors are statistical and systematic, respectively.
Measurement Of The Cp Asymmetry And Branchingfraction Of B 0 To Rho 0 K 0
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Author :
language : en
Publisher:
Release Date : 2006
Measurement Of The Cp Asymmetry And Branchingfraction Of B 0 To Rho 0 K 0 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
The authors present a measurement of the branching fraction and time-dependent CP asymmetry of B° → [rho]°K°. The results are obtained from a data sample of 227 x 106 [Upsilon](4S) → B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a time-dependent maximum likelihood fit yielding 111 ± 19 signal events they find [Beta](B° → [rho]°K°) = (4.9 ± 0.8 ± 0.9) x 10−6, where the first error is statistical and the second systematic. They report the measurement of the CP parameters S{sub {rho}°K{sub S}°} = 0.20 ± 0.52 ± 0.24 and C{sub {rho}°K{sub S}°} = 0.64 ± 0.41 ± 0.20.
The Measurement Of Cp Asymmetries And Branching Fractions In Neutral B Meson Decays To Charged Rhos And Pions Kaons With The Babar Detector
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Author : Ran Liu
language : en
Publisher:
Release Date : 2004
The Measurement Of Cp Asymmetries And Branching Fractions In Neutral B Meson Decays To Charged Rhos And Pions Kaons With The Babar Detector written by Ran Liu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.