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Time Dependent Cp Violation Measurements
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Book Synopsis Time-Dependent CP Violation Measurements by : Markus Röhrken
Download or read book Time-Dependent CP Violation Measurements written by Markus Röhrken and published by Springer Science & Business Media. This book was released on 2013-10-17 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Time-Dependent Cp Violation Measurements by : Markus Rohrken
Download or read book Time-Dependent Cp Violation Measurements written by Markus Rohrken and published by . This book was released on 2013-10-31 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of CP Content and Time-Dependent CP Violation in B0 --] D*+D*- Decays by :
Download or read book Measurement of CP Content and Time-Dependent CP Violation in B0 --] D*+D*- Decays written by and published by . This book was released on 2009 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of time dependent CP violation in B^0 -> D^+D^- decays by : Saša Fratina
Download or read book Measurement of time dependent CP violation in B^0 -> D^+D^- decays written by Saša Fratina and published by . This book was released on 2007 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Time-dependent CP Violation in B0 2![eta]'K0 Decays by :
Download or read book Measurement of Time-dependent CP Violation in B0 2![eta]'K0 Decays written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the time-dependent CP violation parameters in B0 2![eta]'K0 decays. The measurement is based on the full data sample containing 772×106 BB-bar pairs collected at the [Upsilon](4S) resonance using the Belle detector at the KEKB asymmetric-energy e+e- collider. The measured values of the mixing-induced and direct CP violation parameters are: sin 2[phi]1eff = +0.68 " 0.07 " 0.03, A[eta]'K0 = +0.03 " 0.05 " 0.04, where the first uncertainty is statistical and the second is systematic. The values obtained are the most accurate to date. Furthermore, these results are consistent with our previous measurements and with the world-average value of sin 2[phi]1 measured in B0 2!J/[psi]K0 decays.
Book Synopsis Time-Dependent CP Violation Measurements in Neutral B Meson to Double-Charm Decays at the Japanese Belle Experiment by : Markus Röhrken
Download or read book Time-Dependent CP Violation Measurements in Neutral B Meson to Double-Charm Decays at the Japanese Belle Experiment written by Markus Röhrken and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of Time-Dependent CP Violation in Radiative B Decays at BaBar by :
Download or read book Measurements of Time-Dependent CP Violation in Radiative B Decays at BaBar written by and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present measurements of the CP-violation parameters S and C for the radiative decays B° →?°K{sub S}°? and B° →?K{sub S}°?; for B →?K? they also measure the branching fractions and for B →?K+? the time-integrated charge asymmetry A{sub ch}. The data, collected with the BABAR detector at the SLAC National Accelerator Laboratory, represent 467 x 106 B{bar B} pairs produced in e+e− annihilation at the PEP-II collider. In this summary they present an updated measurement of the time-dependent CP asymmetry in B° →?°K{sub S}°? decay mode and the first measurement of the time-dependent CP asymmetry in B° →?K{sub S}°? decay mode. Hadronic corrections in B° →?°K{sub S}°? decay mode might permit S to be as large as ± 0.1. Such corrections and NP effects could depend on m(?°K{sub S}°), so they split the data into two parts: the K*(892) region with 0.8
Book Synopsis Measurement of Time-dependent CP Violation Asymmetries in B0-phi Ks0 Decay by : Aleksey Chuvikov
Download or read book Measurement of Time-dependent CP Violation Asymmetries in B0-phi Ks0 Decay written by Aleksey Chuvikov and published by . This book was released on 2006 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the CP-odd Fraction and Time-dependent CP Violation in the Decay B0 -> D*+D*- at Belle by : Kim Vervink
Download or read book Measurement of the CP-odd Fraction and Time-dependent CP Violation in the Decay B0 -> D*+D*- at Belle written by Kim Vervink and published by . This book was released on 2008 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of CP Violation in B0 to ?K0, and of Branching Fraction and CP Violation in B0 {u2192} F0(980) K$0\atop{S}$. by :
Download or read book Measurement of CP Violation in B0 to ?K0, and of Branching Fraction and CP Violation in B0 {u2192} F0(980) K$0\atop{S}$. written by and published by . This book was released on 2006 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors measure the time-dependent CP asymmetry parameters in B0 → K+K-K0 based on a data sample of approximately 277 million B-meson pairs recorded at the Y(4S) resonance with the BABAR detector at the PEP-II B-meson Factory at SLAC. They reconstruct two-body B0 decays to ?(1020)K$0top{S}$ and ?(1020)K$0top{L}$. Using a time-dependent maximum-likelihood fit, they measure sin2?eff(?K0) = 0.48 ± 0.28 ± 0.10, and C(?K0) = 0.16 ± 0.25 ± 0.09, where the first error is statistical, and the second is systematic. They also present measurements of the CP-violating asymmetries in the decay B0 → f0(→ ?+?-)K$0top{S}$. The results are obtained from a data sample of 209 x 106 Y(4S) → B$ar{B}$ decays, also collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a time-dependent maximum-likelihood fit they measure the mixing-induced CP violation parameter S(f0(980)K$0top{S}$) = - sin 2?efff0(980)K$0top{S}$ = -0.95$+0.32top{-0.23}$ ± 0.10 and the direct CP violation parameter C(f0(980)K$0top{S}$) = - 0.24 ± 0.31 ± 0.15, where the first errors are statistical and the second systematic. Finally, they present a measurement of the branching fraction of the decay B0 → f0(→ ?+?-)K$0top{S}$. From a time-dependent maximum likelihood fit to a data sample of 123 x 106 Y(4S) → B$ar{B}$ decays they find 93.6 ± 13.6 ± 6.4 signal events corresponding to a branching fraction of ?(B0 → f0(980)(→ ?+?-)K0) = (6.0 ± 0.9 ± 0.6 ± 1.2) x 10-6, where the first error is statistical, the second systematic, and the third due to model uncertainties.
Download or read book Bürgerturnverein Basel written by and published by . This book was released on 1894 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Time-dependent CP Violation in B [to] [eta]' K [sub] S [sup] 0 Decays by : Luka Šantelj
Download or read book Measurement of Time-dependent CP Violation in B [to] [eta]' K [sub] S [sup] 0 Decays written by Luka Šantelj and published by . This book was released on 2013 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Time-Dependent CP-Violating Asymmetries in B° Meson Decays to Eta' K° by :
Download or read book Measurement of Time-Dependent CP-Violating Asymmetries in B° Meson Decays to Eta' K° written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a preliminary measurement of CP-violating parameters S and C from fits of the time-dependence of B° meson decays to [eta]'K°. The data were recorded with the BABAR detector at PEP-II and correspond to 227 x 106 B{bar B} pairs produced in ee− annihilation through the [Upsilon](4S) resonance. From a maximum likelihood fit they measure the CP-violation parameters S = 0.27 ± 0.14 (stat.) ± 0.03 (syst.) and C = -0.21 ± 0.10 (stat.) ± 0.03 (syst.).
Book Synopsis CP Violation by : Società italiana di fisica
Download or read book CP Violation written by Società italiana di fisica and published by IOS Press. This book was released on 2006 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dealing with the CP violation, from quarks to leptons, this publication reviews the field, from both the theoretical and experimental point of view, while planning for the experimentation at LHC and considering possible facilities for kaon, B meson and neutrino physics.
Book Synopsis A Study of Factorization and a Measurement of CP Violation by : Bryan Dahmes
Download or read book A Study of Factorization and a Measurement of CP Violation written by Bryan Dahmes and published by . This book was released on 2006 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Furthermore, we present the results on the time-dependent CP asymmetry in neutral B meson decays to the CP eigenstate J/psiKL. The measurements use a data sample of about 88 million Upsilon(4S) & rarr; BB & d1; decays collected between 1999 and 2002 with the BABAR detector. We study events in which one neutral B meson is fully reconstructed in the J/psiKL final state and the other B meson is determined to be either a B0 or a B & d1;0 from its decay products. The amplitude of the CP asymmetry, which in the Standard Model is proportional to sin 2beta, is derived from the decay-time distributions in such events. We measure sin 2beta = 0.723 +/- 0.158(stat.)+/-0.086(syst.), which is consistent with Standard Model expectations.
Book Synopsis Measurement of Time Dependent CP Asymmetry Parameters in B0 Meson Decays to OmegaKs, EtaprimeKz, and Pi0Ks by :
Download or read book Measurement of Time Dependent CP Asymmetry Parameters in B0 Meson Decays to OmegaKs, EtaprimeKz, and Pi0Ks written by and published by . This book was released on 2008 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of CP Violation Parameters in B Quark Decays to Charm Anticharm Down Quarks, Exclusive Decays at the BABAR Experiment by :
Download or read book Measurement of CP Violation Parameters in B Quark Decays to Charm Anticharm Down Quarks, Exclusive Decays at the BABAR Experiment 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 BABAR experiment at SLAC provides an opportunity for measurement of CP violation in B decays. A measurement of time-dependent CP violating asymmetries using exclusive B meson decays where the b quark decays to c{bar c}d (including B° 2!D*D*− and B° 2!D*{sup ±}D{sup {-+}} decays) is presented here. This is the first measurement of CP violation in a mode sensitive to the Unitarity Triangle parameter sin2[beta] outside of decays containing charmonium. It provides a comparison to measurements of sin2[beta] using b 2!c{bar c}s, and permits an observation into potential new physics sources of CP violation, such as supersymmetry, via differences between these measurements and those of B° 2!J/[psi] K{sub S}° as statistics of reconstructed neutral B decays to D{sup (*)+} D{sup (*)-} increase. The measured value of the time-dependent CP violating asymmetries are: S = 0.38 ± 0.88(stat) ± 0.12(syst) and C = -0.30 ± 0.50(stat) ± 0.13(syst) for B° 2!D*− D; S = -0.43 ± 1.41(stat) ± 0.23(syst) and C = 0.53 ± 0.74(stat) ± 0.15(syst) for B° 2!D*+ D−; and S = -0.05 ± 0.45(stat) ± 0.05(syst) and C = 0.12 ± 0.30(stat) {+-} 0.05(syst) for B° 2!D*− D+; where S corresponds to CP violation in the interference of mixing and decay and C corresponds to CP violation in decay.
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