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Measurement Of Time Dependent Cp Asymmetry In B0 Ccbar K0 Decays
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Book Synopsis Measurement of Time-Dependent CP Asymmetry in B0-]ccbar K(*)0 Decays by :
Download or read book Measurement of Time-Dependent CP Asymmetry in B0-]ccbar K(*)0 Decays written by and published by . This book was released on 2009 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present updated measurements of time-dependent Cp asymmetries in fully reconstructed neutral B decays containing a charmonium meson. The measurements reported here use a data sample of (465 ± 5) x 106 [Upsilon](4S) 2!B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric energy ee− storage rings operating at the SLAC National Accelerator Laboratory. The time-dependent CP asymmetry parameters measured from J/[psi] K{sub S}°, J/[psi]K{sub L}°, [psi](2S)K{sub S}°, [eta]{sub c}K{sub S}°, [chi]{sub c1}K{sub S}° and J/[psi] K*(892)° decays are: C{sub f} = 0.024 ± 0.020(stat) ± 0.016(syst) and -[eta]{sub f}S{sub f} = 0.687 ± 0.028(stat) ± 0.012(syst).
Book Synopsis Improved Measurement of CP Asymmetries in B0 to (ccbar)K0(*) Decays by :
Download or read book Improved Measurement of CP Asymmetries in B0 to (ccbar)K0(*) Decays written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results on time-dependent CP asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 227 x 106 [Upsilon](4S) → B{bar B} decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The amplitude of the CP asymmetry, sin2[beta] in the Standard Model, is derived from decay-time distributions from events in which one neutral B meson is fully reconstructed in a final state containing a charmonium meson and the other B meson is determined to be either a B° or {bar B}° from its decay products. We measure sin2[beta] = 0.722 ± 0.040(stat) ± 0.023(syst) in agreement with the Standard Model expectation.
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 Time-dependent CP Asymmetries in B^0 --] K^0_s K^0_s K^0_s Decays by : B. Aubert
Download or read book Measurement of Time-dependent CP Asymmetries in B^0 --] K^0_s K^0_s K^0_s Decays written by B. Aubert and published by . This book was released on 2006 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present an updated measurement of the time-dependent CP-violating asymmetry in B{sup 0} {yields} K{sub S}{sup 0}K{sub S}{sup 0}K{sub S}{sup 0} decays based on 347 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. The authors obtain the CP asymmetries S{sub f} = -0.66 {+-} 0.26 {+-} 0.08 and C{sub f} = -0.14 {+-} 0.22 {+-} 0.05, where the first uncertainties are statistical and the second systematic.
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 Measurements of Time-dependent CP Asymmetries in B0 --] D(*)+D(*)- Decays by :
Download or read book Measurements of Time-dependent CP Asymmetries in B0 --] D(*)+D(*)- Decays written by and published by . This book was released on 2009 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present new measurements of time-dependent CP asymmetries for B° --> D{sup (*)+}d{sup (*)-} decays using (467 ± 5) x 106 B{bar B} pairs collected with the BABAR detector located at the PEP-II B Factory at the Stanford Linear Accelerator Center. We determine the CP-odd fraction of the B° --> D*D*− decays to be R(up tack) = 0.158 ± 0.028 ± 0.006 and find CP asymmetry parameters for the CP-even component of the decay S+ = -0.76 ± 0.16 ± 0.04 and C+ = 0.00 ± 0.12 ± 0.02. We measure S = -0.63±0.36±0.05 and C = -0.07±0.23±0.03 for B° --> DD−, S = -0.62±0.21±0.03 and C = 0.08 ± 0.17 ± 0.04 for B° --> D*+D−, and S = -0.73 ± 0.23 ± 0.05 and C = 0.00 ± 0.17 ± 0.03 for B° --> D+D*−. For the B° --> D*{sup ±}D{sup {-+}} decays, we also determine the CP-violating asymmetry A = 0.008 ± 0.048 {+-} 0.013. In each case, the first uncertainty is statistical and the second is systematic. The measured values for the asymmetries are all consistent with the Standard Model.
Book Synopsis Update of Time-Dependent CP Asymmetry Measurements in B to C-cbar-s Decays by :
Download or read book Update of Time-Dependent CP Asymmetry Measurements in B to C-cbar-s Decays written by and published by . This book was released on 2008 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present updated measurements of time-dependent CP asymmetries in fully reconstructed neutral B decays containing a charmonium meson. The measurements reported here use a data sample of (465 ± 5) x 106 [Upsilon](4S) → B{bar B} decays collected with the BABAR detector at the PEP-II B factory. The time-dependent CP asymmetry parameters measured from J/[psi]K{sub S}°, J/[psi]K{sub L}°, [psi](2S)K{sub S}°, [chi]{sub c1}K{sub S}°, [eta]{sub c}K{sub S}°, and J/[psi]K*° decays are: (1) C{sub f} = 0.026 ± 0.020(stat) ± 0.016(syst); and (2) S{sub f} = 0.691 ± 0.029(stat) ± 0.014(syst).
Book Synopsis Study of Time-dependent CP Asymmetries with Partial Reconstruction of B-]D*pi by :
Download or read book Study of Time-dependent CP Asymmetries with Partial Reconstruction of B-]D*pi written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a preliminary measurement of the time-dependent CP asymmetries in decays of neutral B mesons to the final states D*[sup[-+]][pi][sup[+-]], using approximately 82 million B[bar B] events collected by the BABAR experiment at the PEP-II storage ring. Events containing these decays are selected with a partial reconstruction technique, in which only the high momentum[pi][sup[+-]] and the low momentum pion from the D*[sup[-+]] decay are reconstructed. The flavor of the other B meson in the event is tagged using the information from kaon and lepton candidates. They measure the time-dependent CP asymmetry[Alpha]= -0.063[+-] 0.024 (stat.)[+-] 0.017 (syst.). They interpret these results in terms of the angles of the unitarity triangle to set a bound onsin(2[beta]+[gamma]).
Book Synopsis Measurement of Time-Dependent CP Asymmetry in B0 --] KS Pi0 Gamma Decays by :
Download or read book Measurement of Time-Dependent CP Asymmetry in B0 --] KS Pi0 Gamma Decays written by and published by . This book was released on 2008 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Measurement of Time-Dependent CP Asymmetries in B0 to D(*)D Decays by :
Download or read book Measurement of Time-Dependent CP Asymmetries in B0 to D(*)D Decays written by and published by . This book was released on 2005 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a first measurement of CP asymmetries in neutral B decays to DD−, and updated CP asymmetry measurements in decays to D*D− and D*−D+. They use fully-reconstructed decays collected in a data sample of (232 ± 3) x 106 [Upsilon](4S) 2!B{bar B} events in the BABAR detector at the PEp-II asymmetric-energy B Factory at SLAC. they determine the time-dependent asymmetry parameters to be S{sub D*+D−} = -0.54 ± 0.35 ± 0.07, C{sub D*+D−} = 0.09 ± 0.25 ± 0.06, S{sub D*−D{sup +}} = -0.29 ± 0.33 ± 0.07, C{sub D*−D{sup +}} = 0.17 ± 0.24 ± 0.04, S{sub D{sup +}D{sup -}} = -0.29 ± 0.63 ± 0.06, and C{sub D{sup +}D{sup -}} = 0.11 ± 0.35 ± 0.06, where in each case the first error is statistical and the second error is systematic.
Book Synopsis Cérémonie du centenaire de la naissance de Jean Charcot, à la Sorbonne, le ..., 25 mai 1925. (Discours de M. Charles Lallemand). by :
Download or read book Cérémonie du centenaire de la naissance de Jean Charcot, à la Sorbonne, le ..., 25 mai 1925. (Discours de M. Charles Lallemand). written by and published by . This book was released on 1925 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Time-Dependent CP Asymmetry in B° 2!D*{sup {+-}[pi]{sup -+}} Decays and Constraints on by :
Download or read book Measurement of Time-Dependent CP Asymmetry in B° 2!D*{sup {+-}[pi]{sup -+}} Decays and Constraints on written by and published by . This book was released on 2003 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a preliminary measurement of time-dependent CP-violating asymmetries in fully reconstructed B° → D*{sup {+-}[pi]{sup -+}} decays in a data sample of approximately 88 million [Upsilon](4S) → B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We interpret the results in terms of the angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle, and set the bound
Book Synopsis Measurement of Time-dependent CP-Violating Asymmetries in B0 -] K+K-K0L Decays by : J. C. Chen
Download or read book Measurement of Time-dependent CP-Violating Asymmetries in B0 -] K+K-K0L Decays written by J. C. Chen and published by . This book was released on 2005 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present preliminary measurements of the Cp asymmetry parameters and CP content in B{sup 0} {yields} K{sup +}K{sup -}K{sub L}{sup 0} decays, with B{sup 0} {yields} {phi}K{sub L}{sup 0} events excluded. In a sample of 227 M B{bar B} pairs collected by the BABAR detector at the PEP-II B Factory at SLAC, they find the CP parameters to be S = 0.07 {+-} 0.28(stat){sub -0.12}{sup +0.11}(syst); C = 0.54 {+-} 0.22(stat){sub -0.09}{sup +0.08}(syst) where the first error is statistical and the second is systematic. Estimating the fraction of CP-odd final states from angular moments analysis in the K{sup +}K{sup -}K{sub S}{sup 0} CP-conjugate final state, f{sub odd}(K{sup +}K{sup -}K{sub L}{sup 0}) = 0.92 {+-} 0.07(stat) {+-} 0.06(syst), they determine sin2{beta}{sub eff} = 0.09 {+-} 0.33(stat){sub -0.14}{sup +0.13}(syst) {+-} 0.10(syst CP-cont) where the last error is due to uncertainty on the CP content.
Book Synopsis Bericht zum Referendum gegen den Beschluss des Weiteren Bürgerrates vom 30. Mai 1972 betr. Ermächtigung der Christoph Merian Stiftung zu Landverkäufen im Banne Muttenz by :
Download or read book Bericht zum Referendum gegen den Beschluss des Weiteren Bürgerrates vom 30. Mai 1972 betr. Ermächtigung der Christoph Merian Stiftung zu Landverkäufen im Banne Muttenz written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Time-dependent CP Asymmetry InB to D(*)_CP H0 Decays by :
Download or read book Measurement of the Time-dependent CP Asymmetry InB to D(*)_CP H0 Decays written by and published by . This book was released on 2007 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report a measurement of the time-dependent CP-asymmetry parameters S and C in color-suppressed B° 2!D{sup (*)0}h° decays, where h° is a [pi]°, [eta], or [omega] meson, and the D° decays to one of the CP eigenstates KK−, K{sub S}°[pi]°, or K{sub S}°[omega]. The data sample consists of 383 x 106 [Upsilon](4S) 2!B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B-factory at SLAC. The results are S = -0.56 ± 0.23 ± 0.05 and C = -0.23 ± 0.16 ± 0.04, where the first error is statistical and the second is systematic.
Book Synopsis Amplitude Analysis and Measurement of the Time-dependent CP Asymmetry of B0 to KsKsKs Decays by :
Download or read book Amplitude Analysis and Measurement of the Time-dependent CP Asymmetry of B0 to KsKsKs Decays written by and published by . This book was released on 2012 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the first results on the Dalitz-plot structure and improved measurements of the time-dependent CP-violation parameters of the process B° → K{sub S}°K{sub S}°K{sub S}° obtained using 468 x 106 B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. The Dalitz-plot structure is probed by a time-integrated amplitude analysis that does not distinguish between B° and {bar B}° decays. We measure the total inclusive branching fraction?(B° → K{sub S}°K{sub S}°K{sub S}°) = (6.19 ± 0.48 ± 0.15 ± 0.12) x 10−6, where the first uncertainty is statistical, the second is systematic, and the third represents the Dalitz-plot signal model dependence. We also observe evidence for the intermediate resonant states f0(980), f0(1710), and f2(2010). Their respective product branching fractions are measured to be (2.70{sub -1.19}{sup +1.25} ± 0.36 ± 1.17) x 10−6, (0.50{sub -0.24}{sup +0.46} ± 0.04 ± 0.10) x 10−6, and (0.54{sub -0.20}{sup +0.21} ± 0.03 ± 0.52) x 10−6. Additionally, we determine the mixing-induced CP-violation parameters to be S = -0.94{sub -0.21}{sup +0.24} ± 0.06 and C = -0.17 ± 0.18 ± 0.04, where the first uncertainty is statistical and the second is systematic. These values are in agreement with the standard model expectation.
Book Synopsis Measurement of Time-Dependent CP-Violating Asymmetries in B^0 Meson Decays to Eta' K^0_L. by : J. C. Chen
Download or read book Measurement of Time-Dependent CP-Violating Asymmetries in B^0 Meson Decays to Eta' K^0_L. written by J. C. Chen and published by . This book was released on 2005 with total page 15 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{sup 0} meson decays to {eta}'K{sub L}{sup 0}. The data were recorded with the BABAR detector at PEP-II and correspond to 232 x 10{sup 6} B{bar B} pairs produced in e{sup +}e{sup -} annihilation through the {Upsilon}(4S) resonance. By fitting the time-dependent CP asymmetry of the reconstructed B{sup 0} {yields} {eta}'K{sub L}{sup 0} events, they find S = 0.60 {+-} 0.31 {+-} 0.04 and C = 0.10 {+-} 0.21 {+-} 0.03, where the first error quoted is statistical and the second is systematic. They also perform a combined fit using both {eta}'K{sub S}{sup 0} and {eta}'K{sub L}{sup 0} data, and find S = 0.36 {+-} 0.13 {+-} 0.03 and C = -0.16 {+-} 0.09 {+-} 0.02.
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