Measurement Of The Branching Fraction And The Cp Violating Asymmetry For The Decay B0 To K0s Pi0

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Measurement Of The Branching Fraction And The Cp Violating Asymmetry For The Decay B0 To K0s Pi0

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Author :
language : en
Publisher:
Release Date : 2005

Measurement Of The Branching Fraction And The Cp Violating Asymmetry For The Decay B0 To K0s Pi0 written by 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.

The authors measure the branching fraction and the CP-violating asymmetry of B° 2!K{sub S}°[pi]° decays with 227 million [Upsilon](4S) 2!B{bar B} events collected with the BABAR detector at the PEP-II asymmetric-energy ee− collider at SLAC. They obtain a branching fraction [Beta](B° 2!K°[pi]°) = (11.4 ± 0.9 ± 0.6) x 10−6 and CP-violating asymmetry parameters C{sub K{sub S}°[pi]°} = 0.06 ± 0.18 ± 0.03 and S{sub K{sub S}°[pi]°} = 0.35{sub -0.33}{sup +0.30} ± 0.04, where the first error is statistical and the second systematic.

Measurement Of Cp Asymmetries And Branching Fractions In B0 Pi Pi B0 K Pi B0 Pi0 Pi0 B0 K0 Pi0 And Isospin Analysis Of B Pi Pi Decays

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Author :
language : en
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Release Date : 2008

Measurement Of Cp Asymmetries And Branching Fractions In B0 Pi Pi B0 K Pi B0 Pi0 Pi0 B0 K0 Pi0 And Isospin Analysis Of B Pi Pi 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 2008 with categories.

The authors present preliminary results of improved measurements of the CP-violating asymmetries and branching fractions in the decays B° →??−, B° → K+?−, B° →?°?°, and B° → K°?°. This update includes all data taken at the?(4S) resonance by the BABAR experiment at the asymmetric PEP-II B-meson factory at SLAC, corresponding to 467 ± 5 million B{bar B} pairs. They find S{sub??} = -0.68 ± 0.10 ± 0.03, C{sub??} = -0.25 ± 0.08 ± 0.02,?{sub K{sub?}} = -0.107 ± 0.016{sub -0.004}, {sup +0.006}, C{sub?°?°} = -0.43 ± 0.26 ± 0.05,?(B° →?°?°) = (1.83 ± 0.21 ± 0.13) x 10−6,?(B° → K°?°) = (10.1 ± 0.6 ± 0.4) x 10−6, where the first error is statistical and the second is systematic. They observe CP violation with a significance of 6.7? in B° → {pi}− and 6.1? in B° → K+{pi}−. Constraints on the Unitarity Triangle angle? are determined from the isospin relation between all B → {pi}{pi} rates and asymmetries.

Measurements Of Branching Fraction Polarization And Direct Cp Violating Asymmetry In B Sup K Sup 0 Rho Sup Decays

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Author :
language : en
Publisher:
Release Date : 2004

Measurements Of Branching Fraction Polarization And Direct Cp Violating Asymmetry In B Sup K Sup 0 Rho Sup 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 2004 with categories.

The purpose of this analysis is the simultaneous measurement of the branching fraction, the longitudinal-polarization component, and the direct-CP-violating charge asymmetry for the B --> vector-vector decay mode B[sup +] --> K*[sup 0][rho][sup +], which has previously not been seen experimentally. The measurement of the polarization of the penguin decay is of special interest. There is no tree contribution to the decay amplitude and only a very small annihilation process. The polarization of the B[sup +] --> K*[sup 0][rho][sup +] decay mode can be compared to that already measured for the similar penguin decay B --> K*[phi].

Measurement Of The Branching Fraction And Cp Violating Asymmetries In Neutral B Decays To D Sup D Sup

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Author :
language : en
Publisher:
Release Date : 2003

Measurement Of The Branching Fraction And Cp Violating Asymmetries In Neutral B Decays To D Sup D Sup 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 measurements of the branching fraction and CP-violating asymmetries for neutral B decays to D*{sup ±} D{sup {-+}}. The measurement uses a data sample for approximately 88 million [Upsilon](4S) 2!B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. They measure the branching fraction to be (8.8 ± 1.0 ± 1.3) x 10−4 and the time-integrated CP-violating asymmetry between the rates to D*− D and D* D− to be [Alpha] = -0.03 ± 0.11 ± 0.05. They also measure the time-dependent CP-violating asymmetry parameters to be S{sub -+} = -0.24 ± 0.69 ± 0.12, C{sub -+} = -0.22 ± 0.37 ± 0.10 for B 2!D*− D+ and S{sub +-} = -0.82 ± 0.75 ± 0.14, C{sub +-} = -0.47 ± 0.40 {+-} 0.12 for B 2!D*+ D−. In each case the first error is statistical and the second error is systematic.

Measurement Of The Branching Fraction And Time Dependent Cp Asymmetry In B0 D D K0s Decays At The Belle Experiment

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Author : Martin Ritter
language : en
Publisher:
Release Date : 2013

Measurement Of The Branching Fraction And Time Dependent Cp Asymmetry In B0 D D K0s Decays At The Belle Experiment written by Martin Ritter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.

Measurement Of The Branching Fraction And Time Dependent Cp Asymmetry In B0 D D K0s Decays At The Belle Experiment

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Author : Martin Ritter
language : en
Publisher:
Release Date : 2014

Measurement Of The Branching Fraction And Time Dependent Cp Asymmetry In B0 D D K0s Decays At The Belle Experiment written by Martin Ritter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.

Dedham Library Scrapbook 1972 1980

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Author :
language : en
Publisher:
Release Date : 1972

Dedham Library Scrapbook 1972 1980 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Libraries categories.

Measurements Of Branching Fractions And Cp Violating Asymmetries In B Meson Decays To The Charmless Two Body States K Sup 0 Pi K Bar Sup 0 K Sup And K Sup 0 K Bar Sup 0

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Author :
language : en
Publisher:
Release Date : 2004

Measurements Of Branching Fractions And Cp Violating Asymmetries In B Meson Decays To The Charmless Two Body States K Sup 0 Pi K Bar Sup 0 K Sup And K Sup 0 K Bar Sup 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 2004 with categories.

The authors present preliminary measurements of the branching fraction and the CP-violating charge asymmetry in the B[sup +] --> K[sup 0][pi][sup +] decay, and a preliminary measurement of the branching fraction of the B[sup 0] --> K[sup 0][bar K][sup 0] decay. No evidence of direct CP violation in the B[sup +] --> K[sup 0][pi][sup +] mode is observed. The B[sup 0] --> K[sup 0][bar K][sup 0] measurement constitutes the first observation of this decay channel: the probability of obtaining the result assuming the null-signal hypothesis is 3.4 x 10[sup -6]. The authors have also searched for the B[sup +] --> [bar K][sup 0]K[sup +] decay and set an upper limit on its branching fraction at 2.35 x 10[sup -6] at the 90% C.L. The branching-fraction measurements reported here are consistent with previous measurements of the same quantities, but are extracted from a data sample larger by a factor of 2.6.

Radiative B Meson Decay As A Probe Of Physics Beyond The Standard Model

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Author :
language : en
Publisher:
Release Date : 2009

Radiative B Meson Decay As A Probe Of Physics Beyond The Standard Model written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.

The author presents measurements of radiative B meson decays to the final states Ks0[pi]0[gamma] and K[Phi][gamma] based on data collected at the [Upsilon](4S) resonance with the BABAR detector at the PEP-II e+e- collider at SLAC. In a data sample of 467 million B$\bar{B}$ pairs, the time-dependent CP asymmetry in B0 2!Ks0[pi]0[gamma] decays is measured in two regions of Ks0-[pi]0 invariant mass. In the K* region, 0.8

Measurements Of Branching Fractions Polarizations And Direct Cp Violation Asymmetries In B Rho0 K And B F0 980 K Decays

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Author :
language : en
Publisher:
Release Date : 2011

Measurements Of Branching Fractions Polarizations And Direct Cp Violation Asymmetries In B Rho0 K And B F0 980 K 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 2011 with categories.

We present measurements of the branching fractions, longitudinal polarization, and direct CP-violation asymmetries for the decays B →?°K*+ and B+ f0(980)K*+ with a sample of (467 ± 5) x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e− collider at the SLAC National Accelerator Laboratory. We observe B+ →?°K*+ with a significance of 5.3? and measure the branching fraction?(B+ →?°K*+) = (4.6 ± 1.0 ± 0.4) x 10−6, the longitudinal polarization f{sub L} = 0.78 ± 0.12 ± 0.03, and the CP-violation asymmetry A{sub CP} = 0.31 ± 0.13 ± 0.03. We observe B+ → f0(980)K*+ and measure the branching fraction?(B+ → f0(980)K*+) x?(f0(980) →?+?−) = (4.2 ± 0.6 ± 0.3) x 10−6 and the CP-violation asymmetry A{sub CP} = -0.15 ± 0.12 ± 0.03. The first uncertainty quoted is statistical and the second is systematic.