Measurement of Time-Dependent CP-Violating Asymmetries in B0 -]K*0 Gamma (K*0-]K0[sub S] Pi0) Decays

Measurement of Time-Dependent CP-Violating Asymmetries in B0 -]K*0 Gamma (K*0-]K0[sub S] Pi0) Decays
Title Measurement of Time-Dependent CP-Violating Asymmetries in B0 -]K*0 Gamma (K*0-]K0[sub S] Pi0) Decays PDF eBook
Author
Publisher
Pages
Release 2004
Genre
ISBN

Download Measurement of Time-Dependent CP-Violating Asymmetries in B0 -]K*0 Gamma (K*0-]K0[sub S] Pi0) Decays Book in PDF, Epub and Kindle

We present a measurement of the time-dependent CP-violating asymmetries in B[sup 0] [yields] K*[sup 0][gamma](K*[sup 0] [yields] K[sub S][sup 0][pi][sup 0]) decays based on 124 million [Upsilon](4S) [yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center. In a sample containing 105 [+-] 14 signal decays, we measure S[sub K*[sub [gamma]]] = 0.25 [+-] 0.63 [+-] 0.14 and C[sub K*[sub [gamma]]] = -0.57 [+-] 0.32 [+-] 0.09, where the first error is statistical and the second systematic.

A Study of Time-dependent CP-violating Asymmetries in B0-]J/psiK0S and B0-]psi(2S)K0S Decays

A Study of Time-dependent CP-violating Asymmetries in B0-]J/psiK0S and B0-]psi(2S)K0S Decays
Title A Study of Time-dependent CP-violating Asymmetries in B0-]J/psiK0S and B0-]psi(2S)K0S Decays PDF eBook
Author
Publisher
Pages 5
Release 2000
Genre
ISBN

Download A Study of Time-dependent CP-violating Asymmetries in B0-]J/psiK0S and B0-]psi(2S)K0S Decays Book in PDF, Epub and Kindle

We present a preliminary measurement of time-dependent CP-violating asymmetries in B° → J/[psi] K{sub S}° and B° → [psi](2S)K{sub S}° decays recorded by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The data sample consists of 9.0 fb−1 collected at the [Upsilon](4S) resonance and 0.8 fb−1 off-resonance. One of the neutral B mesons, produced in pairs at the [Upsilon](4S), is fully reconstructed. The flavor of the other neutral B meson is tagged at the time of its decay, mainly with the charge of identified leptons and kaons. A neural network tagging algorithm is used to recover events without a clear lepton or kaon tag. The time difference between the decays is determined by measuring the distance between the decay vertices. Wrong-tag probabilities and the time resolution function are measured with samples of fully-reconstructed semileptonic and hadronic neutral B final states. The value of the asymmetry amplitude, sin2[beta], is determined from a maximum likelihood fit to the time distribution of 120 tagged B° → J/[psi] K{sub S}° and B° → [psi](2S) K{sub S}° candidates to be sin2[beta] = 0.12 ± 0.37(stat) ± 0.09(syst) (preliminary).

Measurement of the Time-Dependent CP-Violating Asymmetry in $B^0 \to K^{0}_s\pi^0\gamma$ Decays

Measurement of the Time-Dependent CP-Violating Asymmetry in $B^0 \to K^{0}_s\pi^0\gamma$ Decays
Title Measurement of the Time-Dependent CP-Violating Asymmetry in $B^0 \to K^{0}_s\pi^0\gamma$ Decays PDF eBook
Author
Publisher
Pages 8
Release 2005
Genre
ISBN

Download Measurement of the Time-Dependent CP-Violating Asymmetry in $B^0 \to K^{0}_s\pi^0\gamma$ Decays Book in PDF, Epub and Kindle

We present a measurement of the time-dependent CP-violating asymmetry in B° 2!K*°[gamma] decays with K*° 2!K{sub S}°[pi]° based on 232 million [Upsilon](4S) 2!B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy ee− collider at SLAC. In a sample containing 157 ± 16 signal decays, we measure S{sub K*°[gamma]} = -0.21 ± 0.40 ± 0.05 and C{sub K*°[gamma]} = -0.40 ± 0.23 ± 0.03, where the first error is statistical and the second systematic. We also explore B° 2!K{sub S}°[pi]°[gamma] decays with 1.1

Measurements of CP-violating Asymmetries in B0 -] Ks Pi0 Decays

Measurements of CP-violating Asymmetries in B0 -] Ks Pi0 Decays
Title Measurements of CP-violating Asymmetries in B0 -] Ks Pi0 Decays PDF eBook
Author
Publisher
Pages
Release 2004
Genre
ISBN

Download Measurements of CP-violating Asymmetries in B0 -] Ks Pi0 Decays Book in PDF, Epub and Kindle

We present a measurement of the time-dependent CP-violating (CPV) asymmetries in B[sup 0] [yields] K[sub s][sup 0][pi][sup 0] decays based on 124 million [Upsilon](4S) [yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. In a sample containing 122 [+-] 16 signal decays, we obtain the magnitude of the direct CPV asymmetry C[sub K[sub S][sup 0][pi][sup 0]] = 0.40 [sub -0.28][sup +0.27] [+-] 0.09 and the magnitude of the CPV asymmetry in the interference between mixing and decay S[sub K[sub S][sup 0][pi][sup 0]] = 0.48 [sub -0.47][sup +0.38] [+-] 0.06 where the first error is statistical and the second systematic.

Search for Physics Beyond the Standard Model Using Measurements of CP Violating Asymmetries in Rare B Decays

Search for Physics Beyond the Standard Model Using Measurements of CP Violating Asymmetries in Rare B Decays
Title Search for Physics Beyond the Standard Model Using Measurements of CP Violating Asymmetries in Rare B Decays PDF eBook
Author Dmytro Kovalskyi
Publisher
Pages 152
Release 2005
Genre
ISBN

Download Search for Physics Beyond the Standard Model Using Measurements of CP Violating Asymmetries in Rare B Decays Book in PDF, Epub and Kindle

This dissertation presents measurements of time-dependent CP violating asymmetries in the decays B{sup 0} {yields} K{sub s}{sup 0}{pi}{sup 0} and B{sup 0} {yields} K{sub s}{sup 0}{pi}{sup 0}{gamma} based on RUN 1-4 data collected with the BABAR detector at the {Upsilon}(4S) resonance operating at the PEP-II asymmetric e{sup +}e{sup -} collider at SLAC. It was found that the CP violating asymmetry parameters are S{sub K{sub s}{pi}{sup 0}} = 0.35{sub -0.33}{sup +0.30}(stat) {+-} 0.04(syst), C{sub K{sub g}{pi}{sup 0}} = 0.06 {+-} 0.18(stat) {+-} 0.03(syst), S{sub K{sub s}{pi}{sup 0}{gamma}} = 0.9 {+-} 1.0(stat) {+-} 0.2(syst) and C{sub K{sub s}{pi}{sup 0}{gamma}} = -1.0 {+-} 0.5(stat) {+-} 0.2(syst), where B{sup 0} {yields} K{sup +0}{gamma} decays correspond to the K{sub s}{pi}{sup 0} invariant mass interval of [0.8,1.0] GeV and B{sup 0} {yields} K{sub s}{sup 0}{pi}{sup 0}{gamma} of [1.1,1.8] GeV. All results are consistent with the Standard Model predictions.

Measurement of Time-Dependent CP Asymmetry in B0 --] KS Pi0 Gamma Decays

Measurement of Time-Dependent CP Asymmetry in B0 --] KS Pi0 Gamma Decays
Title Measurement of Time-Dependent CP Asymmetry in B0 --] KS Pi0 Gamma Decays PDF eBook
Author
Publisher
Pages 7
Release 2008
Genre
ISBN

Download Measurement of Time-Dependent CP Asymmetry in B0 --] KS Pi0 Gamma Decays Book in PDF, Epub and Kindle

The authors measure the time-dependent CP asymmetry in B° 2!K{sub S}°[pi]°[gamma] decays for two regions of K{sub S}°-[pi]° invariant mass, m(K{sub S}°[pi]°), using the final BABAR data set of 467 x 106 B{bar B} pairs collected at the PEP-II ee− collider at SLAC. They find 339 ± 24 B° 2!K*°[gamma] candidates and measure S{sub K*[gamma]} = -0.03 ± 0.29 ± 0.03 and C{sub K*[gamma]} = -0.14 ± 0.16 ± 0.03. In the range 1.1

Bürgerturnverein Basel

Bürgerturnverein Basel
Title Bürgerturnverein Basel PDF eBook
Author
Publisher
Pages
Release 1894
Genre
ISBN

Download Bürgerturnverein Basel Book in PDF, Epub and Kindle