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Measuring The Cp Violating Phase Angle By An Amplitude Analysis Of The Decays B K Pi Pi Pi D K
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Book Synopsis Measuring the CP Violating Phase Angle Γ by an Amplitude Analysis of the Decays B[+-] → (K[-+] Pi[+-] Pi- Pi+) D K[+-] by : Callum Lister
Download or read book Measuring the CP Violating Phase Angle Γ by an Amplitude Analysis of the Decays B[+-] → (K[-+] Pi[+-] Pi- Pi+) D K[+-] written by Callum Lister and published by . This book was released on 2010 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Amplitude Analysis of B0 to K ̂pi-̂pi0̂ and Evidence of Direct CP Violation in B to K*̂ Pi Decays by :
Download or read book Amplitude Analysis of B0 to K ̂pi-̂pi0̂ and Evidence of Direct CP Violation in B to K*̂ Pi Decays written by and published by . This book was released on 2011 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: We analyze the decay B° → K+ ?− ?° with a sample of 454 million B{bar B} events collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, and extract the complex amplitudes of seven interfering resonances over the Dalitz plot. These results are combined with amplitudes measured in B° → K°{sub s}?+?− decays to construct isospin amplitudes from B° → K{sup *}? and B° → ?K decays. We measure the phase of the isospin amplitude ?{sub 3/2}, useful in constraining the CKM unitarity triangle angle ? and evaluate a CP rate asymmetry sum rule sensitive to the presence of new physics operators. We measure direct CP violation in B° → K{sup *+}?− decays at the level of 3 ? when measurements from both B° → K+?−?° and B° → K°{sub s}?+?− decays are combined.
Book Synopsis Polarization and CP Violation Measurements by : Michael Prim
Download or read book Polarization and CP Violation Measurements written by Michael Prim and published by Springer Science & Business Media. This book was released on 2014-03-28 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the thorough analysis of the rare B meson decay into φ K* on data taken by the Belle Collaboration at the B-meson-factory KEKB over 10 years. This reaction is very interesting, because it in principle allows the observation of CP-violation effects. In the Standard Model however, no CP violation in this reaction is expected. An observation of CP asymmetries thus immediately implies new physics. This thesis presents an amplitude analysis of this decay and the search for CP violation in detail and discusses methods to solve related problems: The quantification of multivariate dependence and the improvement of numeric evaluation speed of normalization integrals in amplitude analysis. In addition it provides an overview of the theory, experimental setup, (blind) statistical data analysis and estimation of systematic uncertainties.
Book Synopsis CP Violation in {B_s}^0 -> J/psi.phi Decays by : Sabato Leo
Download or read book CP Violation in {B_s}^0 -> J/psi.phi Decays written by Sabato Leo and published by Springer. This book was released on 2014-07-24 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis reports on the final measurement of the flavor-mixing phase in decays of strange-bottom mesons (B_s) into J/psi and phi mesons performed in high-energy proton-antiproton collisions recorded by the Collider Experiment at Fermilab. Interference occurs between direct decays and decays following virtual particle-antiparticle transitions (B_s-antiB_s). The phase difference between transition amplitudes (“mixing phase”) is observable and extremely sensitive to contributions from non-standard-model particles or interactions that may be very hard to detect otherwise – a fact that makes the precise measurement of the B_s mixing phase one of the most important goals of particle physics. The results presented include a precise determination of the mixing phase and a suite of other important supplementary results. All measurements are among the most precise available from a single experiment and provide significantly improved constraints on the phenomenology of new particles and interactions.
Book Synopsis A Measurement of the Phase of the CP Violating Amplitude for K20 --> [pi] [pi]− by : David Birnbaum
Download or read book A Measurement of the Phase of the CP Violating Amplitude for K20 --> [pi] [pi]− written by David Birnbaum and published by . This book was released on 1967 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of CP Violation and Neutral Kaon Charge Radius Using K(L) --] Pi+pi-e+e- Decays by : Alexander Golossanov
Download or read book Measurements of CP Violation and Neutral Kaon Charge Radius Using K(L) --] Pi+pi-e+e- Decays written by Alexander Golossanov and published by . This book was released on 2005 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: CP violation and K{sup 0} charge radius were measured using K{sub L} {yields} {pi}{sup +}{pi}{sup -}e{sup +}e{sup -} decays. Specifically, a unique CP-violating decay-plane asymmetry was measured along with the parameters of individual contributions to the decay invariant amplitude: (1) CP-conserving magnetic dipole direct emission form factor, (2) CP-conserving K{sup 0} charge radius transition amplitude and (3) an upper limit for the CP-violating electric dipole direct emission amplitude. The measurements were obtained from the data sample accumulated by KTeV experiment at Fermilab. KTeV had two major goals: the measurement of direct CP violation parameter Re({var_epsilon}{prime}/{var_epsilon}) and the study of rare kaon decays. The state of the art detector was constructed, commissioned, operated and maintained by an international collaboration of scientists from fourteen institutions. The K{sub L} {yields} {pi}{sup +}{pi}{sup -} e{sup +}e{sup -} data was accumulated over the 1997 and 1999 running periods. During that time hundreds of billions K{sub L} decays took place in the KTeV fiducial decay region.
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 Search for CP Violation Through an Amplitude Analysis of D°→K+K−[pi]+[pi]− Decays at LHCb by : Maxime Schubiger
Download or read book Search for CP Violation Through an Amplitude Analysis of D°→K+K−[pi]+[pi]− Decays at LHCb written by Maxime Schubiger and published by . This book was released on 2018 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mots-clés de l'auteur: particle physics ; LHCb ; amplitude analysis ; CP violation ; charm decays ; magnetic field.
Book Synopsis Amplitude Analysis of the Decay B0-]K+pi-pi0 by :
Download or read book Amplitude Analysis of the Decay B0-]K+pi-pi0 written by and published by . This book was released on 2008 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report an updated amplitude analysis of the charmless hadronic decays of neutral B mesons to K?−?°. With a sample of 454 million?(4S) → B{bar B} decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes for B° and B° decays and determine the corresponding CP-averaged fit fractions and charge asymmetries.
Book Synopsis Measurement of CP-Violating Asymmetries in B0 to (rho Pi)0 Using a Time-Dependent Dalitz Plot Analysis by :
Download or read book Measurement of CP-Violating Asymmetries in B0 to (rho Pi)0 Using a Time-Dependent Dalitz Plot Analysis 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 the preliminary measurement of CP-violating asymmetries in B° → (??)° →??−?° decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 213 million?(4S) → B{bar B} decays, collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. This analysis extends the narrow-rho quasi-two-body approximation used in the previous analysis, by taking into account the interference between the rho resonances of the three charges. We measure 16 coefficients of the bilinear form factor terms occurring in the time-dependent decay rate of the B° meson with the use of a maximum-likelihood fit. We derive the physically relevant quantities from these coefficients. We measure the direct CP-violation parameters A{sub??} = -0.088 ± 0.049 ± 0.013 and C = 0.34 ± 0.11 ± 0.05, where the first errors are statistical and the second systematic. For the mixing-induced CP-violation parameter we find S = -0.10 ± 0.14 ± 0.04, and for the dilution and strong phase shift parameters respectively, we obtain?C = 0.15 ± 0.11 ± 0.03 and?S = 0.22 ± 0.15 ± 0.03. For the angle alpha of the Unitarity Triangle we measure (113−1--{sup +27} ± 6){sup o}, while only a weak constraint is achieved at the significance level of more than two standard deviations. Finally, for the relative strong phase?{sub ±} between the B° →?−?+ and B° → {rho}+?− transitions we find ( -67−31{sup +28} {+-} 7) deg, with a similarly weak constraint at two standard deviations and beyond.
Book Synopsis A Strong Phase Difference Binned Analysis to Improve the Sensitivity in Determining the CP Violating Weak Phase in the B+- -> (K+Π-Π+Π-)DK+- Decay by : Christopher Rastall
Download or read book A Strong Phase Difference Binned Analysis to Improve the Sensitivity in Determining the CP Violating Weak Phase in the B+- -> (K+Π-Π+Π-)DK+- Decay written by Christopher Rastall and published by . This book was released on 2011 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis Evidence for Direct CP Violation in the Measurement of the Cabibbo-Kobayashi-Maskawa Angle Gamma with B-+ to D(*) K(*)-+ Decays by :
Download or read book Evidence for Direct CP Violation in the Measurement of the Cabibbo-Kobayashi-Maskawa Angle Gamma with B-+ to D(*) K(*)-+ Decays written by and published by . This book was released on 2011 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report the measurement of the Cabibbo-Kobayashi-Maskawa CP-violating angle? through a Dalitz plot analysis of neutral D meson decays to K{sub S}°??− and K{sub S}° K+K− produced in the processes B{sup {-+}} → DK{sup {-+}}, B{sup {-+}} → D* K{sup {-+}} with D* → D?°, D?, and B{sup {-+}} → DK*{sup {-+}} with K*{sup {-+}} → K{sub S}°?{sup {-+}}, using 468 million B{bar B} pairs collected by the BABAR detector at the PEP-II asymmetric-energy e+e− collider at SLAC. We measure? = (68 ± 14 ± 4 ± 3){sup o} (modulo 180{sup o}), where the first error is statistical, the second is the experimental systematic uncertainty and the third reflects the uncertainty in the description of the neutral D decay amplitudes. This result is inconsistent with? = 0 (no direct CP violation) with a significance of 3.5 standard deviations.
Book Synopsis Measurement of CP Violation Parameters with a Dalitz Plot Analysis of B+- to D(pi+pi-pi0)K+- by :
Download or read book Measurement of CP Violation Parameters with a Dalitz Plot Analysis of B+- to D(pi+pi-pi0)K+- 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 report the results of a CP violation analysis of the decay B{sup {+-}} → D{sub??−?°}K{sup {+-}}, where D{sub?+?−?°} indicates a neutral D meson detected in the final state?+?−?°, excluding K{sub S}°?°. The analysis makes use of 324 million e+e− → B{bar B} events recorded by the BABAR experiment at the PEP-II e+e− storage ring. By analyzing the?+?−?° Dalitz plot distribution and the B{sup {+-}} → D{sub?+?−?°} K{sup {+-}} branching fraction and decay rate asymmetry, we calculate parameters related to the phase? of the CKM unitarity triangle. We also measure the magnitudes and phases of the components of the D° → {pi}+{pi}−{pi}° decay amplitude.
Book Synopsis Observation of CP Violation in B± → DK± Decays by : Paolo Gandini
Download or read book Observation of CP Violation in B± → DK± Decays written by Paolo Gandini and published by Springer. This book was released on 2016-08-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: CP violation is a well-established phenomenon in particle physics, but until 2001 it was only observed in kaons. In the last decade, several matter-antimatter asymmetries have been observed in neutral B mesons in line with the expectations of the Standard Model of the weak interaction. Direct CP violation is also expected in the decay rates of charged B+ mesons versus that of B- mesons, though the greatest effects are present in a decay that occurs just twice in 10 million decays. Such rarity requires huge samples to study and this is exactly what the LHC, and its dedicated B-physics experiment LHCb provide. This thesis presents an analysis of the first two years of LHCb data. The author describes the first observation of the rare decay, B- → DK-, D → π-K+ and the first observation of direct CP violation in this B decay. The work constitutes essential information on the experiment’s measurement of a fundamental parameter of the theory and stands as a benchmark against which subsequent analyses of this type will be compared.
Book Synopsis Measurement of CP-Violating Asymmetries in B0 to (rho Pi)0 Using a Time-Dependent Dalitz Plot Analysis by : B. Aubert
Download or read book Measurement of CP-Violating Asymmetries in B0 to (rho Pi)0 Using a Time-Dependent Dalitz Plot Analysis written by B. Aubert and published by . This book was released on 2006 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report a measurement of CP-violating asymmetries in B{sup 0} {yields} ({rho}{pi}){sup 0} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup 0} decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 347 million {Upsilon}(4S) {yields} B{bar B} decays, collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure 26 coefficients of the bilinear form factor terms occurring in the time-dependent decay rate of the B{sup 0} meson and derive the physically relevant quantities from these coefficients. In particular we find a three standard deviation evidence of direct CP-violation in the B{sup 0} {yields} {rho}{sup {+-}}{pi}{sup {-+}} decays, with systematic uncertainties included. We also achieve a constraint of the angle {alpha} of the Unitarity Triangle. All results presented are preliminary.
Book Synopsis Measurements of Direct CP Violation and Constraint on the CKM Triangle in B-]K*pi Decays by : Andrew Phillips Wagner
Download or read book Measurements of Direct CP Violation and Constraint on the CKM Triangle in B-]K*pi Decays written by Andrew Phillips Wagner and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We constrain the apex of the Cabibbo-Kobayashi-Maskawa unitarity triangle with measurements of B-> K*pi amplitudes from analyses of B0-> K+pi-pi0 and B0-> K_Spi+pi- decays. This constraint is consistent with the world average. The B0-> K+pi-pi0 decay mode is reconstructed from a sample of 454 million B0B0bar events collected by the BABAR detector at SLAC. We measure direct CP violation in B0-> K*+pi- decays at the level of 3 sigma when measurements from both B0-> K+pi-pi0 and B0-> K_Spi+pi- decays are combined.
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