Measurements of CP-Violating Asymmetries and BranchingFractions in B Decays to OmegaK and OmegaPi
Title | Measurements of CP-Violating Asymmetries and BranchingFractions in B Decays to OmegaK and OmegaPi PDF eBook |
Author | B. Aubert |
Publisher | |
Pages | 7 |
Release | 2006 |
Genre | |
ISBN |
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.
Measurements of CP-violating Asymmetries and Branching Fractions in the Decays of B Mesons to Charged Pions and Kaons at the Babar Detector
Title | Measurements of CP-violating Asymmetries and Branching Fractions in the Decays of B Mesons to Charged Pions and Kaons at the Babar Detector PDF eBook |
Author | Morris Nicholas Danielson |
Publisher | |
Pages | 286 |
Release | 2005 |
Genre | |
ISBN |
MEASUREMENTS OF BRANCHING FRACTIONS AND CP VIOLATING ASYMMETRIES IN B0 ---] PI+ PI-, K+ PI-, K+ K- DECAYS.
Title | MEASUREMENTS OF BRANCHING FRACTIONS AND CP VIOLATING ASYMMETRIES IN B0 ---] PI+ PI-, K+ PI-, K+ K- DECAYS. PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 2003 |
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We present measurements of branching fractions and CP-violating asymmetries for neutral B meson decays to two-body final states of charged pions and kaons. The results are obtained from a data sample of about 88 million[Upsilon](4S)[yields] B[bar B] decays collected between 1999 and 2002 with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a time-independent fit we measure the charge-averaged branching fractions[Beta](B[sup 0][yields][pi][sup+][pi][sup -])= (4.7[+-] 0.6[+-] 0.2) x 10[sup -6] and[Beta](B[sup 0][yields] K[sup+][pi][sup -])= (17.9[+-] 0.9[+-] 0.7) x 10[sup -6], where the first uncertainty is statistical and the second is systematic; the 90% confidence level upper limit[Beta](B[sup 0][yields] K[sup+]K[sup -])
Legge sul diritto di bollo, 13 novembre 1899
Title | Legge sul diritto di bollo, 13 novembre 1899 PDF eBook |
Author | |
Publisher | |
Pages | 16 |
Release | 1900 |
Genre | |
ISBN |
Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B to Eta' K Decays
Title | Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B to Eta' K Decays PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 2005 |
Genre | |
ISBN |
Branching Fraction and P-violation Charge Asymmetry Measurements for B-meson Decays to Eta K+-, Eta Pi+-, Eta'K, Eta' Pi+-, Omega K, and Omega Pi+-
Title | Branching Fraction and P-violation Charge Asymmetry Measurements for B-meson Decays to Eta K+-, Eta Pi+-, Eta'K, Eta' Pi+-, Omega K, and Omega Pi+- PDF eBook |
Author | |
Publisher | |
Pages | 8 |
Release | 2007 |
Genre | |
ISBN |
Time-Dependent CP Violation Measurements
Title | Time-Dependent CP Violation Measurements PDF eBook |
Author | Markus Röhrken |
Publisher | Springer Science & Business Media |
Pages | 205 |
Release | 2013-10-17 |
Genre | Science |
ISBN | 3319007262 |
This thesis describes a high-quality, high-precision method for the data analysis of an interesting elementary particle reaction. The data was collected at the Japanese B-meson factory KEKB with the Belle detector, one of the most successful large-scale experiments worldwide. CP violation is a subtle quantum effect that makes the world look different when simultaneously left and right and matter and antimatter are exchanged. This being a prerequisite for our own world to have developed from the big bang, there are only a few experimental indications of such effects, and their detection requires very intricate techniques. The discovery of CP violation in B meson decays garnered Kobayashi and Maskawa, who had predicted these findings as early as 1973, the 2008 Nobel prize in physics. This thesis describes in great detail what are by far the best measurements of branching ratios and CP violation parameters in two special reactions with two charm mesons in the final state. It presents an in-depth but accessible overview of the theory, phenomenology, experimental setup, data collection, Monte Carlo simulations, (blind) statistical data analysis, and systematic uncertainty studies.