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Measurement Of The B To Rho Pi0 Branching Fraction And Direct Cp Asymmetry
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Book Synopsis Measurement of the B+- to Rho Pi0 Branching Fraction and Direct CP Asymmetry by :
Download or read book Measurement of the B+- to Rho Pi0 Branching Fraction and Direct CP Asymmetry written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).
Book Synopsis Measurement of the B+- --] Rho+- Pi0 Branching Fraction and Direct CP Asymmetry by : J. C. Chen
Download or read book Measurement of the B+- --] Rho+- Pi0 Branching Fraction and Direct CP Asymmetry written by J. C. Chen and published by . This book was released on 2005 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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}.
Book Synopsis MEASUREMENTS OF BRANCHING FRACTIONS AND DIRECT CP ASYMMETRIES IN PI+ PI0, K+ PI0 AND K0 PI0 B DECAYS. by :
Download or read book MEASUREMENTS OF BRANCHING FRACTIONS AND DIRECT CP ASYMMETRIES IN PI+ PI0, K+ PI0 AND K0 PI0 B DECAYS. written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Measurement of the CP Asymmetry and BranchingFraction of B^0 to \rho^{0}K^0 by :
Download or read book Measurement of the CP Asymmetry and BranchingFraction of B^0 to \rho^{0}K^0 written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Measurement of Branching Fraction and Direct CP Asymmetry in B0 K0 Π0 Decay at Belle Ii and First Study of Two-particle Correlations at Belle by : 陳昱蓁
Download or read book Measurement of Branching Fraction and Direct CP Asymmetry in B0 K0 Π0 Decay at Belle Ii and First Study of Two-particle Correlations at Belle written by 陳昱蓁 and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Measurement of CP Asymmetries and Branching Fractions in Neutral B Meson Decays to Charged Rhos and Pions (kaons) with the BABAR Detector by : Ran Liu
Download or read book 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 published by . This book was released on 2004 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of the Branching Fraction, CP Asymmetry and Isospin Asymmetry of the Radiative Penguin Deca [neutral B Meson Decays to Neutral Kaon(0) Resonance] and a Search for the Decays [B Meson Decays to Rho Photon] and [neutral B Meson Decays to Omega Photon] at BABAR by : Patrick Michael Spradlin
Download or read book Measurements of the Branching Fraction, CP Asymmetry and Isospin Asymmetry of the Radiative Penguin Deca [neutral B Meson Decays to Neutral Kaon(0) Resonance] and a Search for the Decays [B Meson Decays to Rho Photon] and [neutral B Meson Decays to Omega Photon] at BABAR written by Patrick Michael Spradlin and published by . This book was released on 2005 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of the Branching Fraction and Time-Dependent CP Asymmetries of B0 to J/Psi Pi0 Decays by : B. Aubert
Download or read book Measurements of the Branching Fraction and Time-Dependent CP Asymmetries of B0 to J/Psi Pi0 Decays written by B. Aubert and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present measurements of the branching fraction and time-dependent CP asymmetries in B{sup 0} {yields} J/{psi} {pi}{sup 0} decays based on (231.8 {+-} 2.6) x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC during the years 1999-2004. We obtain a branching fraction {Beta}(B{sup 0} {yields} J/{psi}{pi}{sup 0}) = (1.94 {+-} 0.22 (stat) {+-} 0.17 (syst)) x 10{sup -5}. They also measure the CP asymmetry parameters C = -0.21 {+-} 0.26 (stat) {+-} 0.09 (syst) and S = -0.68 {+-} 0.30 (stat) {+-} 0.04 (syst). All results presented in this paper are preliminary.
Book Synopsis Measurements of the Branching Fraction and Time-Dependent CP Asymmetries of B0 to J/Psi Pi0 Decays by : K. George
Download or read book Measurements of the Branching Fraction and Time-Dependent CP Asymmetries of B0 to J/Psi Pi0 Decays written by K. George and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of the branching fraction and time-dependent CP asymmetries in B{sup 0} {yields} J/{psi}{pi}{sup 0} decays based on (231.8 {+-} 2.6) x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We obtain a branching fraction {Beta}(B{sup 0} {yields} J/{psi}{pi}{sup 0}) = (1.94 {+-} 0.22 (stat) {+-} 0.17 (syst)) x 10{sup -5}. We also measure the CP asymmetry parameters C = -0.21 {+-} 0.26 (stat) {+-} 0.06 (syst) and S = -0.68 {+-} 0.30 (stat) {+-} 0.04 (syst).
Book Synopsis Branching Fractions and CP Asymmetries in B ---] H+ Hh'- by : Giovanni Punzi
Download or read book Branching Fractions and CP Asymmetries in B ---] H+ Hh'- written by Giovanni Punzi and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relative branching fractions of B{sub d, s} {yields} h{sup +}h'{sup -} decays (where h, h' = K or {pi}) and direct CP asymmetry in B{sub d} {yields} K{sup +}{pi}{sup -} have been measured with 180 pb{sup -1} of data collected by the CDFII detector at the Tevatron collider. This includes the first BR measurement of a charmless B{sub s} {yields} PP decay (B{sub s} {yields} K{sup +}K{sup -}).
Book Synopsis Study of Branching Fractions and CP-violating Asymmetries in B Meson Decays to Rho and Pion Final States with the BABAR Detector by : Jinwei Wu
Download or read book Study of Branching Fractions and CP-violating Asymmetries in B Meson Decays to Rho and Pion Final States with the BABAR Detector written by Jinwei Wu and published by . This book was released on 2005 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dedham Library Scrapbook, 1972-1980 by :
Download or read book Dedham Library Scrapbook, 1972-1980 written by and published by . This book was released on 1972 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Branching Fraction and Search for Direct CP-violation in the Β± -> J/ψπ± Decay Mode at BABAR by : Francesco Fabozzi (fisico)
Download or read book Measurement of the Branching Fraction and Search for Direct CP-violation in the Β± -> J/ψπ± Decay Mode at BABAR written by Francesco Fabozzi (fisico) and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Branching Fraction and Time-Dependent CP Asymmetry in Neutral B Decays to Psi and a Neutral Pion by :
Download or read book Branching Fraction and Time-Dependent CP Asymmetry in Neutral B Decays to Psi and a Neutral Pion 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 invariance of physical laws under the combination of exchange of particles with antiparticles (charge conjugation, C) and reversal of coordinates (parity, P) is called CP symmetry. The violation of CP symmetry was first discovered in 1964 in the neutral kaon system, and is in general one of the great puzzles of particle physics. The recent observation of CP violation in the B meson system has been a simultaneous success for model predictions and experiment. The opportunity now exists to probe details of the underlying mechanisms. This thesis presents measurements of the branching fraction and time-dependent CP-violating asymmetry in neutral B decays to J/[psi][pi]°. The decay amplitude for this channel features both tree and penguin diagram contributions, the interference of which can yield a result for the asymmetry differing from that found in the ''golden mode'' B° 2!J/[psi] K{sub s}°. Using the measured branching fraction and CP asymmetry, constraints are placed on the ratio of penguin to tree amplitudes in B° 2!J/[psi][pi]°. In addition, the impact on the CP asymmetry measurement in B° 2!J/[psi] K{sub s}° is discussed. The results are presented for ee− annihilation data collected with the BABAR detector on the [Upsilon](4S) resonance at the PEP-II asymmetric-energy B Factory at SLAC. The measurement of the branching fraction, based on about 23 million B{bar B} pairs collected between October 1999 and October 2000, yields BF(B° 2!J/[psi][pi]°) = (2.0 ± 0.6 (stat) ± 0.2(syst)) x 10−5. With about 88 million B{bar B} pairs collected during the years 1999-2002, our results for the coefficients of the cosine and sine terms of the CP asymmetry are C{sub J/{psi}[pi]°} = 0.38 ± 0.41 (stat) ± 0.09 (syst) and S{sub J/{psi}[pi]°} = 0.05 ± 0.49 (stat) ± 0.16 (syst).
Book Synopsis Branching Fractions and CP Asymmetries in B0 to Pi0pi0, B+ to Pi+pi0 and B+ to K+pi0 Decays and Isospin Analysis of the B to Pi Pi System by :
Download or read book Branching Fractions and CP Asymmetries in B0 to Pi0pi0, B+ to Pi+pi0 and B+ to K+pi0 Decays and Isospin Analysis of the B to Pi Pi System written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a sample of 227 million B{bar B} pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the branching fraction?(B° →?°?°) = (1.17 ± 0.32 ± 0.10) x 10−6, and the asymmetry C{sub?°?°} = -0.12 ± 0.56 ± 0.06. The B° →?°?° signal has a significance of 5.0?. We also measure?(B →?+?°) = (5.8 ± 0.6 ± 0.4) x 10−6,?(B+ → K+?°) = (12.0 ± 0.7 ± 0.6) x 10−6, and the charge asymmetries?{sub?+{pi}°} = -0.01 ± 0.10 ± 0.02 and?{sub K{sup +}{pi}°} = 0.06 ± 0.06 ± 0.01. Using isospin relations we find an upper bound on the angle difference.
Book Synopsis Measurement of the Branching Fraction and Search for Direct CP Violation in the Radiative Decay B-]K*c [B K Gamma] with the BABAR Detector by : Tilmann Colberg
Download or read book Measurement of the Branching Fraction and Search for Direct CP Violation in the Radiative Decay B-]K*c [B K Gamma] with the BABAR Detector written by Tilmann Colberg and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis From Quarks To Black Holes: Progress In Understanding The Logic Of Nature - Proceedings Of The International School Of Subnuclear Physics by : Antonino Zichichi
Download or read book 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 published by World Scientific. This book was released on 2005-06-16 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
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