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Cp Violating Partial Rate Asymmetries In The Decays B C 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 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 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 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 B^0 Toa_1^+(1260) \pi^- Decays by :
Download or read book Measurements of CP-Violating Asymmetries in B^0 Toa_1^+(1260) \pi^- 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 present measurements of CP-violating asymmetries in the decay 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 CP-violating asymmetry [Alpha]{sub CP}{sup a{sub 1}[pi]} = -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 parameters [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 determine 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 Sowjetische Wissenschaftler zu Fragen der Kunstentwicklung und Kunstwissenschaft by :
Download or read book Sowjetische Wissenschaftler zu Fragen der Kunstentwicklung und Kunstwissenschaft written by and published by . This book was released on 1974 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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