Measurement Of Branching Fractions And Cp Violating Asymmetries In B Rho H PDF Download
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Total Pages | : 7 |
Release | : 2003 |
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Download Measurement of Branching Fractions and CP-Violating Asymmetries in B -] Rho+/-h-/ Book in PDF, ePub and Kindle
We present measurements of branching fractions and CP-violating asymmetries in B° 2![rho]{sup ±}[pi]{sup {-+}} and B° 2![rho]−K decays. The results are obtained from a data sample of 88.9 x 106 [Upsilon](4S) 2!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 we measure the charge-averaged branching fractions [Beta](B° 2![rho]{sup ±}[pi]{sup {-+}}) = (22.6 ± 1.8 (stat) ± 2.2 (syst)) x 10−6 and [Beta](B° 2![rho]−K) = (7.3{sub -1.2}{sup +1.3} ± 1.3) x 10−6; and the CP-violating charge asymmetries A{sub CP}{sup {rho}[pi]} = -0.18 ± 0.08 ± 0.03 and A{sub CP}{sup {rho}K} = 0.28 ± 0.17 ± 0.08; the direct CP violation parameter C{sub {rho}[pi]} = 0.36 ± 0.18 ± 0.04 and the mixing-induced CP violation parameter S{sub {rho}[pi]} = 0.19 ± 0.24 ± 0.03; and the dilution parameters [Delta]C{sub {rho}[pi]} = 0.28{sub -0.19}{sup +0.18} ± 0.04 and [Delta]S{sub {rho}[pi]} = 0.15 {+-} 0.25 {+-} 0.03.
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Total Pages | : 179 |
Release | : 2005 |
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Download A Measurement of the Branching Fractions and CP Asymmetries of the Decays B± 2!K*±[pi]0 and B± 2![rho]±[pi]0 at BaBar Book in PDF, ePub and Kindle
Measurements of the branching fractions (average over charge-conjugate decays), B, and CP violating asymmetries, ACP, of the decays B± → K*±[pi]0 and B± → [rho]±[pi]0 are presented.
Author | : Jinwei Wu |
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Total Pages | : 208 |
Release | : 2005 |
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Download Study of Branching Fractions and CP-violating Asymmetries in B Meson Decays to Rho and Pion Final States with the BABAR Detector Book in PDF, ePub and Kindle
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Total Pages | : 5 |
Release | : 2004 |
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Download Measurements of the Branching Fraction and CP-Violating Asymmetries of B°--] K°s[pi]° Decays Book in PDF, ePub and Kindle
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Total Pages | : 975 |
Release | : 1966 |
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Download Кинословарь в 2 томач Book in PDF, ePub and Kindle
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Total Pages | : 8 |
Release | : 2011 |
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Download Measurements of Branching Fractions, Polarizations, and Direct CP-violation Asymmetries in B -] Rho0 K* and B -] F0(980) K* Decays Book in PDF, ePub and Kindle
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.
Author | : B. Aubert |
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Total Pages | : 7 |
Release | : 2006 |
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Download Measurements of CP-Violating Asymmetries and BranchingFractions in B Decays to OmegaK and OmegaPi Book in PDF, ePub and Kindle
We present measurements of CP-violating asymmetries and branching fractions for the decays B{sup +} {yields} {omega}{pi}{sup +}, B{sup +} {yields} {omega}K{sup +}, and B{sup 0} {yields} {omega}K{sup 0}. The data sample corresponds to 232 million B{bar B} pairs produced by e{sup +}e{sup -} annihilation at the {Upsilon}(4S) resonance. For the decay B{sup 0} {yields} {omega}K{sub s}{sup 0}, we measure the time-dependent CP-violation parameters S = 0.51{sub -0.39}{sup +0.35} {+-} 0.02, and C = -0.55{sub -0.26}{sup +0.28} {+-} 0.03. We also measure the branching fractions, in units of 10{sup -6}, {Beta}(B{sup +} {yields} {omega}{pi}{sup +}) = 6.1 {+-} 0.7 {+-} 0.4, {Beta}(B{sup +} {yields} {omega}K{sup +}) = 6.1 {+-} 0.6 {+-} 0.4, and {Beta}(B{sup 0} {yields} {omega}K{sup 0}) = 6.2 {+-} 1.0 {+-} 0.4, and charge asymmetries {Alpha}{sub ch}(B{sup +} {yields} {omega}{pi}{sup +}) = -0.01 {+-} 0.10 {+-} 0.01 and {Alpha}{sub ch}(B{sup +} {yields} {omega}K{sup +}) = 0.05 {+-} 0.09 {+-} 0.01.
Author | : Nicole Isabelle Chevalier |
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Release | : 2002 |
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Download Measurement of the Branching Fractions and CP Violating Asymmetries of Charmless Hadronic B Decays -> K*pi at BaBar Book in PDF, ePub and Kindle
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Total Pages | : 27 |
Release | : 2008 |
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Download 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 Book in PDF, ePub and Kindle
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.
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Total Pages | : 294 |
Release | : 2002 |
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Download Measurement of the Branching Fractions and CP Violating Asymmetries of Charmless Hadronic B Decays B [to] K*[pi] at BaBar Book in PDF, ePub and Kindle