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ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (16 download)
Download or read book Search for CP Violation Using T-odd Correlations in D0 \to K+ K-pi+ Pi- Decays at BaBar written by and published by . This book was released on 2013 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (16 download)
Download or read book Search for CP Violation Using $T$-odd Correlations in $D0̂ \to K+̂ K-̂ \pi+̂ \pi-̂$ Decays written by and published by . This book was released on 2011 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We search for CP violation in a sample of 4.7 x 104 Cabibbo suppressed D° → KK−?+?− decays. We use 470 fb−1 of data recorded by the BABAR detector at the PEP-II asymmetric-energy e+e− storage rings running at center-of-mass energies near 10.6 GeV. CP violation is searched for in the difference between the T-odd asymmetries, obtained using triple product correlations, measured for D° and {bar D}° decays. The measured CP violation parameter is A{sub T} = (1.0 ± 5.1{sub stat} ± 4.4{sub syst}) x 10−3.
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ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (16 download)
Download or read book Search for CP Violation Using T-odd Correlations in D+ to K+K0spi+pi- and DS+ to K+K0spi+pi- Decays written by and published by . This book was released on 2011 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: We search for CP violation in a sample of 20,000 Cabibbo-suppressed decays, D+ → K+K{sub S}°?+?−, and 30,000 Cabibbo-favored decays, D{sub s}+ → K+K{sub S}°?+?−. We use 520 fb−1 of data recorded by the BABAR detector at the PEP-II asymmetric-energy e+e− collider operating at center of mass energies near 10.6 GeV. We search for CP violation in the difference between the T-odd asymmetries obtained using triple product correlations of the D+ (D{sub s}+) and D− (D{sub s}−) decays, respectively. The T violation parameter values obtained are ?{sub T} (D+) = (-12.0 ± 10.0{sub stat} ± 4.6{sub syst}) x 10−3 and ?{sub T}(D{sub s}+) = (-13.6 ± 7.7{sub stat} ± 3.4{sub syst}) x 10−3, which are consistent with the Standard Model expectations.
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ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (16 download)
Download or read book Search for CP Violation in the Decays D0 to K- K+and D0 to Pi- Pi written by and published by . This book was released on 2007 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We measure CP-violating asymmetries of neutral charmed mesons in the modes D° → K−K and D° →?−?+ with the highest precision to date by using D° → K−?+ decays to correct detector asymmetries. An analysis of 385.8 fb−1 of data collected with the BaBar detector yields values of a{sup KK}{sub CP} = (0.00 ± 0.34 (stat.) ± 0.13 (syst.))% and a{sup?{pi}}{sub CP} = ( -0.24 ± 0.52 (stat.) ± 0.22 (syst.))%, which agree with Standard Model predictions.
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ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (925 download)
Download or read book Searches for New Physics in CP Violation from BaBar written by and published by . This book was released on 2015 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of recent searches for new physics in CP violation in charm decays from the BABAR experiment are presented. These results include a measurement of D0 - anti D0 mixing and searches for CP violation in two-body D0 decays, a search for CP violation in the charm decays D" 2!KS0K " and D s" 2!KS0K", KS0[pi]", and a search for direct CP violation in the singly-Cabibbo suppressed D" 2!K+K-[pi]"decays. These studies are based on the fi nal dataset collected by BABAR at the PEP-II B factory at SLAC in the period 1999-2008. No evidence of CP violation is found in these charm decays. The measured mixing parameter yCP = [0.72 " 0.18(stat) " 0.12(syst)]% excludes the no-mixing null hypothesis with a signifi cance of 3.3[sigma].
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ISBN 13 :
Total Pages : 195 pages
Book Rating : 4.:/5 (953 download)
Download or read book Measurement of Mixing and CP Violation in the Two-Body D0 Decays to KK, Pipi and Kpi with the BaBar Experiment written by and published by . This book was released on 2012 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis we present the measurement of D0 - $\bar{D}$0 mixing parameter yCP using the full BABAR data sample. We also searched for CP violation in the D0 → K+K-, [pi]+[pi]- channels, finding the parameter [Delta]Y compatible with zero. In Chapter 1, we briefly review the SM and introduce the theoretical framework of neutral meson mixing and CP violation. The BABAR detector and the performance of each sub-detector are described in Chapter 2. In Chapter 3, we present an overview of the analysis including a brief description of the previous similar BABAR analyses and the expected improvements in the present analysis. The candidate reconstruction and selection are described in Chapter 4, together with the optimization of the signal region. The signal and background event classes are described in Chapter 5, where we also provide the probability density functions used to extract the mixing and CP violating parameter. In Chapter 6 we describe the various crosschecks performed to validate the analysis and the evaluation of the systematic error. Finally in Chapter 7 we present the final results and their interpretation.
Download or read book Deutsche Grundkarte written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 752 pages
Book Rating : 4.3/5 (91 download)
Download or read book Physics, Uspekhi written by and published by . This book was released on 2001 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Troels C. Petersen
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ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (491 download)
Download or read book Search for CP Violation in B0 to D(*)±K0 Π± Decays written by Troels C. Petersen and published by . This book was released on 2004 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following the idea of considering three-body decays with final state B to DKpi in the pursuit of the notoriously elusive unitary angle gamma, the initial steps towards its measurement are presented. Using a sample of approximately 88 million BBbar pairs collected with the BaBar detector at the PEP-II collider, a measurement of the branching fractions BO to D+- KO pi-+ and BO to D*+- KO pi-+ are presented for the entire Dalitz region: Br(BO to D+- KO pi-+) = (4.97 +- 0.69 +- 0.55) x 10^(-4) Br(BO to D*+- KO pi-+) = (3.00 +- 0.66 +- 0.29) x 10^(-4). In both decay modes the dominant resonance is the K*+-(892) between the neutral kaon and the charged pion. Measuring the branching fractions of the corresponding resonant two-body decays yields: Br(BO to D+- K*-+) = (4.78 +- 0.58 +- 0.53) x 10^(-4) Br(BO to D*+- K*-+) = (3.22 +- 0.59 +- 0.29) x 10^(-4). Performing a time-dependent CP asymmetries fit of the resonant decay mode BO to D+- K*-+ yields: C = 0.93 +- 0.18 +- 0.03 ABS[lambda] = 0.19 +- 0.25 +- 0.04 S = 0.18 +- 0.28 +- 0.02 Delta S = 0.08 +- 0.28 +- 0.02. As the amplitude ratio ABS[lambda] is consistant with zero, no interference sensitive to gamma can be established at this point.
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ISBN 13 :
Total Pages : 125 pages
Book Rating : 4.:/5 (957 download)
Download or read book Search for CP Violation in Singly Cabibbo Suppressed Four-body D Decays written by and published by . This book was released on 2011 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: We search for CP violation in a sample of 4.7 x 104 singly Cabibbo suppressed D0 2!K+ K- [pi]+[pi]- decays and 1.8(2.6) x 104 D(s)+ 2!KS0 K+ [pi]+ [pi]- decays. CP violation is searched for in the difference between the T-odd asymmetries, obtained using triple product correlations, measured for D and D decays. The measured CP violation parameters are AT(D0) = (1.0 ± 5.1(stat) ± 4.4(syst)) x 10-3, AT(D+) = ( -11.96 ± 10.04(stat) ± 4.81(syst)) x 10-3 and AT(Ds+) = ( -13.57 ± 7.67(stat) ± 4.82(syst)) x 10-3. This search for CP violation showed that the T-odd correlations are a powerful tool to measure the CP violating observable AT. The relative simplicity of an analysis based on T-odd correlations and the high quality results that can be obtained, allow to consider this tool as fundamental to search for CP violation in four-body decays. Even if the CP violation has not been found, excluding any New Physics effect to the sensitivity of about 0.5%, it is still worth to search for CP violation in D decays. The high statistics that can be obtained at the LHC or by the proposed high luminosity B-factories, make this topic to be considered in high consideration by experiments such as LHCb, SuperB or SuperBelle. The results outlined in this thesis strongly suggest to include a similar analysis into the Physics program of these experiments.
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ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (873 download)
Download or read book Search for CP Violation in the Decay D+/- to Ks Pi+/- written by and published by . This book was released on 2011 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on a search for CP violation in the decay D{sup ±} 2!K{sub S}°[pi]{sup ±} using a data set corresponding to an integrated luminosity of 469 fb−1 collected with the BABAR detector at the PEP-II asymmetric energy ee− storage rings. The CP-violating decay rate asymmetry A{sub CP} is determined to be ( -0.44 ± 0.13(stat) {+-} 0.10(syst))%, consistent with zero at 2.7 [sigma] and with the standard model prediction of ( -0.332 {+-} 0.006)%. This is currently the most precise measurement of this parameter.
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ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (16 download)
Download or read book Search for CP Violation in the Decay Tau- \to Pi- K0̂_S (] written by and published by . This book was released on 2012 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report a search for CP violation in the decay?− →?−K{sub S}°({>=} 0?°)?{sub?} using a dataset of 437 million {tau} lepton pairs, corresponding to an integrated luminosity of 476 fb−1, collected with the BABAR detector at the PEP-II asymmetric energy ee− storage rings. The CP-violating decay-rate asymmetry is determined to be ( -0.45 ± 0.24 ± 0.11)%, approximately three standard deviations from the Standard Model prediction of (0.33 ± 0.01)%.
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Author : Giulia Casarosa
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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (955 download)
Download or read book Measurement of Mixing and CP Violation in the Two-body D0 Decays to K+ K-, [pi]+ [pi]- and K± [pi]Ŧ with the BABAR Experiment written by Giulia Casarosa and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (723 download)
Download or read book Gautschlieder written by and published by . This book was released on 1922 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download A Search for Direct CP Violation in K[+-]-->[pi+-][pi+-][pi+-] Decays PDF Online Free](https://books.google.com/books/content/images/frontcover/iahNAQAAMAAJ?fife=w200-h370)
Author : Woon-Seng Choong
Publisher :
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.:/5 (34 download)
Download or read book A Search for Direct CP Violation in K[+-]-->[pi+-][pi+-][pi+-] Decays written by Woon-Seng Choong and published by . This book was released on 2000 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CP Violation Studies in B0 to D(*)+- Pi-+ in BABAR and Belle written by and published by . This book was released on 2005 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 B° mesons to the final states D{sup (*)}[pi] using data collected by the BABAR experiment at the PEP-II storage rings. B mesons decaying to D[pi] are fully reconstructed, while events containing B → D*[pi] are selected using a full or a partial reconstruction technique. These results can be interpreted in terms of a constraint on the angles of the unitarity triangle to set a lower bound on
Author : Cecilia Jarlskog
Publisher : World Scientific
ISBN 13 : 9814632457
Total Pages : 733 pages
Book Rating : 4.8/5 (146 download)
Download or read book Cp Violation written by Cecilia Jarlskog and published by World Scientific. This book was released on 1989-01-01 with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents:CP Phenomenology:Introduction to CP Violation (C Jarlskog)CP-Violation in the K0-K0-System (K Kleinknecht)The Quark Mixing Matrix, Charm Decays and B Decays (S Stone)The Question of CP Noninvariance — As Seen through the Eyes of Neutral Beauty (I I Bigi et al.)In Search of CP Noninvariance in Heavy Quark Systems (L-L Chau)CP Violation at High Energy e+e- Colliders (J Bernabéu & M B Gavela)CP Violation in the Standard Model with Four Families (A Datta & E A Paschos)CP Effects When Neutrinos are their Own Antiparticles (B Kayser)On Spontaneous CP Violation Triggered by Scalar Bosons (I I Bigi & A I Sanda)CP Violation and Left-Right Symmetry (R N Mohapatra)CP Violation and Supersymmetry (R N Mohapatra)Electric Dipole Moments (S M Barr & W H Marciano)Special Topics: The Strong CP Problem (R D Peccei)CP Violation and Cosmology (P Langacker)Nonleptonic Interactions:The 1/N Approach to Nonleptonic Weak Interactions (A J Buras)Chiral Perturbation Theory Approach to Weak Amplitudes (E de Rafael)What We Learnt from Weak Decays of Heavy Quarks (B Stech)Weak Hamiltonian on the Lattice (G Martinelli) Readership: High energy physicists. Keywords:CP Violation;Quark Mixing Matrix;Charm Decays;B Decays;Nonleptic Interactions;Heavy QuarksReview: “Similar material is most often available in journals, but the book accomplishes a valuable service in drawing it together … the one that will probably have the greatest utility and longest lifespan is the survey of B meson physics by I Bigi, V Khoze, N Uraltsev and A Sanda … Bigi et al. here provide the most thorough and readable account of the issues that I know of. I have seen no review comparable to the excellent summary of electric dipole moments by S Barr and W Marciano … the volume offers a generally readable entry into this field for a reader who has a basic background in particle physics.” John F Donoghue Science “… this book performs a very useful service for anyone active or interested in CP violation, both as a source of primary information and as a work of reference.” K J Peach J Phys. G: Nucl. Part. Phys.
