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Cp Violating Partial Rate Asymmetries In The Decays B Jp Jp Jcp B Etapi Etapi Etacpi
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Book Synopsis CP violating partial rate asymmetries in the decays B± -> jp±, j'p±, jcp± [B->etapi, etapi, etacpi] by : Saul Barshay
Download or read book CP violating partial rate asymmetries in the decays B± -> jp±, j'p±, jcp± [B->etapi, etapi, etacpi] written by Saul Barshay and published by . This book was released on 1990 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CP violating partial rate asymmetries in the decays B± → ηπ±, η'π±, ηcπ± [B→etapi, etapi, etacpi] by : Saul Barshay
Download or read book CP violating partial rate asymmetries in the decays B± → ηπ±, η'π±, ηcπ± [B→etapi, etapi, etacpi] written by Saul Barshay and published by . This book was released on 1990 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CP violating partial rate asymmetries in the decays B +- Eta Pi +-, Eta ' Pi +-, Eta c Pi +- by : Saul Barshay
Download or read book CP violating partial rate asymmetries in the decays B +- Eta Pi +-, Eta ' Pi +-, Eta c Pi +- written by Saul Barshay and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of CP Asymmetries for the Decays B^+/- --] D^0_CP K*^+/- by : J. C. Chen
Download or read book Measurement of CP Asymmetries for the Decays B^+/- --] D^0_CP K*^+/- written by J. C. Chen and published by . This book was released on 2005 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a sample of 232 million {Upsilon}(4S) {yields} B{bar B} events collected with the BABAR detector at the PEP-II B Factory in 1999-2004, they study B{sup -} {yields} K{sup 0}K*(892){sup -} decays where K*{sup -} {yields} K{sub S}{sup 0} {pi}{sup -} and D{sup 0} {yields} K{sup -}{pi}{sup +}, K{sup -}{pi}{sup +}{pi}{sup 0}, K{sup -}{pi}{sup +}{pi}{sup +}{pi}{sup -} (non-CP final states); K{sup +}K{sup -}, {pi}{sup +}{pi}{sup -} (CP+ eigenstates); K{sub S}{sup 0}{pi}{sup 0}, K{sub S}{sup 0}{phi} and K{sub S}{sup 0}{omega} (CP- eigenstates). They measure four observables that are sensitive to the angle {gamma} of the CKM unitarity triangle; the partial-rate charge asymmetries A{sub CP{+-}} and the ratios of the B-decay branching fraction in CP{+-} and non-CP decays R{sub CP{+-}}: A{sub CP+} = -0.08 {+-} 0.19 (stat.) {+-} 0.08 (syst.); A{sub CP-} = -0.26 {+-} 0.40 (stat.) {+-} 0.12 (syst.); R{sub CP+} = 1.96 {+-} 0.40 (stat.) {+-} 0.11 (syst.); R{sub CP-} = 0.65 {+-} 0.26 (stat.) {+-} 0.08 (syst.).
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 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 Measurement of CP Violation Observables and Parameters for the Decays $B{̂\pm}\to DK{̂*\pm}$ by :
Download or read book Measurement of CP Violation Observables and Parameters for the Decays $B{̂\pm}\to DK{̂*\pm}$ written by and published by . This book was released on 2010 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the decay B− → DK*− using a sample of 379 x 106?(4S) → B{bar B} events collected with the BABAR detector at the PEP-II B-factory. We perform a 'GLW' analysis where the D meson decays into either a CP-even (CP+) eigenstate (KK−,?+?−), CP-odd (CP- ) eigenstate (K{sub S}°?°, K{sub S}°?, K{sub S}°?) or a non-CP state (K−?+). We also analyze D meson decays into K+?− from a Cabibbo-favored {bar D}° decay or doubly suppressed D° decay ('ADS' analysis). We measure observables that are sensitive to the CKM angle?: the partial-rate charge asymmetries A{sub CP±}, the ratios R{sub CP±} of the B-decay branching fractions in CP± and non-CP decay, the ratio R{sub ADS} of the charge-averaged branching fractions, and the charge asymmetry A{sub ADS} of the ADS decays: A{sub CP+} = 0.09 ± 0.13 ± 0.06, A{sub CP-} = -0.23 ± 0.21 ± 0.07, R{sub CP+} = 2.17 ± 0.35 ± 0.09, R{sub CP-} = 1.03 ± 0.27 ± 0.13, R{sub ADS} = 0.066 ± 0.031 ± 0.010, and A{sub ADS} = -0.34 {+-} 0.43 {+-} 0.16, where the first uncertainty is statistical and the second is systematic. Combining all the measurements and using a frequentist approach yields the magnitude of the ratio between the Cabibbo-suppressed and favored amplitudes, r{sub B} = 0.31 with a one (two) sigma confidence level interval of [0.24, 0.38] ([0.17, 0.43]). The value r{sub B} = 0 is excluded at the 3.3 sigma level. A similar analysis excludes values of? in the intervals [0, 7]{sup o}, [55, 111]{sup o}, and [175, 180]{sup o} ([85, 99]{sup o}) at the one (two) sigma confidence level.
Book Synopsis Measurement of Time-dependent CP-Violating Asymmetries in B0 --] KsKsKs Decays by : J. C. Chen
Download or read book Measurement of Time-dependent CP-Violating Asymmetries in B0 --] KsKsKs Decays 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 preliminary measurements of the CP asymmetry parameters in B{sup 0} {yields} K{sub S}{sup 0}K{sub S}{sup 0}K{sub S}{sup 0} decays, reconstructing two of the K{sub S}{sup 0} into {pi}{sup +}{pi}{sup -} and one into {pi}{sup 0}{pi}{sup 0}. 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 = -0.25{sub -0.61}{sup +0.68}(stat) {+-} 0.05(syst) and C = 0.56{sub -0.43}{sup +0.34}(stat) {+-} 004(syst). Combining this result with the previous BABAR measurement, obtained from events with three K{sub S}{sup 0} decaying into {pi}{sup +}{pi}{sup -}, they get S = -0.63{sub -0.28}{sup +0.32}(stat) {+-} 0.04(syst); C = -0.10 {+-} 0.25(stat) {+-} 0.05, (syst).
Book Synopsis B Physics And Cp Violation: Proceedings Of The 2nd International Conference by : Thomas E Browder
Download or read book B Physics And Cp Violation: Proceedings Of The 2nd International Conference written by Thomas E Browder and published by World Scientific. This book was released on 1998-04-04 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: CP violation is one of the most subtle effects in the Standard Model of particle physics and may be the first clue to the physics that lies beyond. Charge conjugation, C, and parity, P, are symmetries of particle interactions. C corresponds to the operation of replacing a particle by its antiparticle, while P is the operation of mirror reflection. Before 1956, it was believed that these were also symmetries of the interactions of elementary particles. In 1956, C S Wu found evidence for P violation in the weak interaction. Theorists proposed that the combination of CP would be a symmetry of the weak interaction. In 1964, Christenson, Cronin, Fitch and Turlay found the first evidence for the violation of CP symmetry in the decays of kaons.Although Kobayashi and Maskawa then showed how the Standard Model can accommodate the observed CP violation, Wolfenstein pointed out that it is also possible that there is a new interaction in addition to the usual four, called the superweak interaction, which is responsible for the asymmetry. To test this idea, the observation of a different type of asymmetry, called direct CP violation, is required; in the kaon sector, very precise measurements of the ratio of kaon decay rates are necessary. In B decay modes where a second order weak process whimisically named “penguin” interferes with another suppressed, first order “tree” amplitude, it may also be possible to observe these direct CP-violating effects.B physics and CP violation is now one of the major growth areas in high energy physics. Nearly every major high energy physics laboratory now has a project underway to observe the large CP asymmetries expected in the B sector and to test the consistency of the Standard Model. The unitarity of the Kobayashi-Maskawa mixing matrix in the Standard Model implies the existence of three phases, called alpha, beta and gamma, which can be determined by the measurements of CP asymmetries in B decays. About 200 participants gathered in Hawaii in March 1997 to discuss the progress in the field, and this important book constitutes the proceedings of that conference.
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 CP-Violating Asymmetries and BranchingFractions in B Decays to OmegaK and OmegaPi by : B. Aubert
Download or read book Measurements of CP-Violating Asymmetries and BranchingFractions in B Decays to OmegaK and OmegaPi written by B. Aubert and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Measurement of CP Asymmetries in B0-]Ks Pi0 Pi0 Decays by : J. C. Chen
Download or read book Measurement of CP Asymmetries in B0-]Ks Pi0 Pi0 Decays written by J. C. Chen and published by . This book was released on 2005 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a preliminary measurement of the time-dependent CP asymmetry for the neutral B-meson decay into the CP = +1 final state K{sub S}{sup 0}{pi}{sup 0}{pi}{sup 0}, with K{sub S}{sup 0} {yields} {pi}{sup +}{pi}{sup -} and {pi}{sup 0} {yields} {gamma}{gamma}. They use a sample of approximately 227 million B-meson pairs recorded at the {Upsilon}(4S) resonance by the BABAR detector at the PEP-II B-Factory at SLAC. From a maximum likelihood fit they extract the mixing-induced CP-violation parameter S{sub K{sub S}{sup 0}{pi}{sup 0}{pi}{sup 0}} = 0.84 {+-} 0.71(stat) {+-} 0.08(syst) and the direct CP-violation parameter C{sub K{sub S}{sup 0}}{pi}{sup 0}{pi}{sup 0} = 0.27 {+-} 0.52(stat) {+-} 0.13(syst), where the first uncertainty is statistical and the second systematic.
Book Synopsis Measurements of CP-Violating Asymmetries in B0 to A1+-(1260) Pi-+ Decays by :
Download or read book Measurements of CP-Violating Asymmetries in B0 to A1+-(1260) Pi-+ Decays written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present measurements of CP-violating asymmetries in the decays B° → a1{sup ±}(1260)[pi]{sup {-+}} with a1{sup ±}(1260) → [pi]{sup {-+}}[pi]{sup ±}[pi]{sup ±}. The data sample corresponds to 384 x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric B-factory at SLAC. They measure the time- and flavor-integrated charge asymmetry A{sub CP}{sup 1{sub 1}±} = -0.07 ± 0.07 ± 0.02, the mixing-induced CP violation parameter S{sub a{sub 1}[pi]} = 0.37 ± 0.21 ± 0.07, the direct CP violation parameter C{sub a{sub 1}[pi]} = -0.10 ± 0.15 ± 0.09, and the parameter [Delta]C{sub a{sub 1}[pi]} = 0.26 ± 0.15 {+-} 0.07 and [Delta]S{sub a{sub 1}[pi]} = -0.14 {+-} 0.21 {+-} 0.06. From these measured quantities they extract the angle [alpha]{sub eff} = 78.6{sup o} {+-} 7.3{sup o}.
Book Synopsis Measurements of CP-violating Asymmetries in B0 -] Ks Pi0 Decays by :
Download or read book Measurements of CP-violating Asymmetries in B0 -] Ks Pi0 Decays written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the time-dependent CP-violating (CPV) asymmetries in B[sup 0] [yields] K[sub s][sup 0][pi][sup 0] decays based on 124 million [Upsilon](4S) [yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. In a sample containing 122 [+-] 16 signal decays, we obtain the magnitude of the direct CPV asymmetry C[sub K[sub S][sup 0][pi][sup 0]] = 0.40 [sub -0.28][sup +0.27] [+-] 0.09 and the magnitude of the CPV asymmetry in the interference between mixing and decay S[sub K[sub S][sup 0][pi][sup 0]] = 0.48 [sub -0.47][sup +0.38] [+-] 0.06 where the first error is statistical and the second systematic.
Book Synopsis Measurement of CP-Violating Asymmetries in B0 Decays to CP Eigenstates by :
Download or read book Measurement of CP-Violating Asymmetries in B0 Decays to CP Eigenstates written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurement uses a data sample of 23 million[Upsilon](4S)[yields] B[bar B] decays collected by the BABAR detector at the PEP-II asymmetric B Factory at SLAC. In this sample, we find events where one neutral B meson is fully reconstructed in a CP eigenstate containing charmonium and the flavor of the other neutral B meson is determined from its decay products. The amplitude of the CP-violating asymmetry, which in the Standard Model is proportional to sin2[beta], is derived from the decay time distributions in such events. The result is sin2[beta]= 0.34[+-] 0.20 (stat)[+-] 0.05 (syst).
Book Synopsis Measurement of CP-Violating Parameters in Fully Reconstructed B to D(*)+-pi-+ and B to D+-rho-+ Decays by : J. C. Chen
Download or read book Measurement of CP-Violating Parameters in Fully Reconstructed B to D(*)+-pi-+ and B to D+-rho-+ Decays written by J. C. Chen and published by . This book was released on 2005 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a preliminary measurement of the CP-violating parameters in fully reconstructed B{sup 0} {yields} D{sup (*){+-}}{pi}{sup {-+}} and B{sup 0} {yields} D{sup {+-}}{rho}{sup {-+}} decays in approximately 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC.
Book Synopsis A Measurement of CP Violating Asymmetries in B[sup 0] --] F[sup 0](980)Ks Decays by :
Download or read book A Measurement of CP Violating Asymmetries in B[sup 0] --] F[sup 0](980)Ks Decays written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have presented an updated preliminary measurement of the CP-violating asymmetries in B[sup 0] --> f[sub 0](980)( --> [pi][sup +][pi][sup -])K[sub s][sup 0] decays. Their results for S and C are consistent with the Standard Model. The hypothesis of no mixing-induced CP violation is excluded at the 2.3[sigma] level.
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