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Author: W. D. Hulsbergen Publisher: ISBN: Category : Languages : en Pages : 4
Book Description
We present preliminary measurements of branching fractions and direct CP violating asymmetries in charmless two-body B decays, obtained with the BABAR detector using a sample of 227M {Upsilon}(4S) {yields} B{bar B} decays. We report the first observation of B{sup 0} {yields} K{sup 0}{bar K}{sup 0} and the first observation of direct CP violation in B{sup 0} {yields} K{sup +}{pi}{sup -} decays.
Author: W. D. Hulsbergen Publisher: ISBN: Category : Languages : en Pages : 4
Book Description
We present preliminary measurements of branching fractions and direct CP violating asymmetries in charmless two-body B decays, obtained with the BABAR detector using a sample of 227M {Upsilon}(4S) {yields} B{bar B} decays. We report the first observation of B{sup 0} {yields} K{sup 0}{bar K}{sup 0} and the first observation of direct CP violation in B{sup 0} {yields} K{sup +}{pi}{sup -} decays.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors present measurements of branching fractions and CP-violating asymmetries in decays of B mesons to two-body final states containing a K[sup 0]. The results are based on a data sample of approximately 88 million [Upsilon](4S) [yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors present preliminary measurements of the branching fraction and the CP-violating charge asymmetry in the B[sup +] --> K[sup 0][pi][sup +] decay, and a preliminary measurement of the branching fraction of the B[sup 0] --> K[sup 0][bar K][sup 0] decay. No evidence of direct CP violation in the B[sup +] --> K[sup 0][pi][sup +] mode is observed. The B[sup 0] --> K[sup 0][bar K][sup 0] measurement constitutes the first observation of this decay channel: the probability of obtaining the result assuming the null-signal hypothesis is 3.4 x 10[sup -6]. The authors have also searched for the B[sup +] --> [bar K][sup 0]K[sup +] decay and set an upper limit on its branching fraction at 2.35 x 10[sup -6] at the 90% C.L. The branching-fraction measurements reported here are consistent with previous measurements of the same quantities, but are extracted from a data sample larger by a factor of 2.6.
Author: Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
The authors present preliminary measurements of the branching fraction and the CP-violating charge asymmetry in the B --> K°?+ decay, and a preliminary measurement of the branching fraction of the B° --> K°{bar K}° decay. No evidence of direct CP violation in the B+ --> K°?+ mode is observed. The B° --> K°{bar K}° measurement constitutes the first observation of this decay channel: the probability of obtaining the result assuming the null-signal hypothesis is 3.4 x 10−6. The authors have also searched for the B+ --> {bar K}°K+ decay and set an upper limit on its branching fraction at 2.35 x 10−6 at the 90% C.L. The branching-fraction measurements reported here are consistent with previous measurements of the same quantities, but are extracted from a data sample larger by a factor of 2.6.
Author: T Ohshima Publisher: World Scientific ISBN: 9814490776 Category : Science Languages : en Pages : 392
Book Description
This book offers the first strong evidence of the existence of CP violation in neutral B decays extracted from sophisticated B factories in the US and Japan. It also holds out the expectation of rare B decays and D, K physics in the near future. In addition, new physics beyond the Standard Model is described. Both experimental and theoretical points of view are given.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors present measurements of the branching fraction and CP-violating asymmetries for neutral B decays to D*[sup[+-]] D[sup[-+]]. The measurement uses a data sample for approximately 88 million[Upsilon](4S)[yields] B[bar B] decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. They measure the branching fraction to be (8.8[+-] 1.0[+-] 1.3) x 10[sup -4] and the time-integrated CP-violating asymmetry between the rates to D*[sup -] D[sup+] and D*[sup+] D[sup -] to be[Alpha]= -0.03[+-] 0.11[+-] 0.05. They also measure the time-dependent CP-violating asymmetry parameters to be S[sub -+]= -0.24[+-] 0.69[+-] 0.12, C[sub -+]= -0.22[+-] 0.37[+-] 0.10 for B[yields] D*[sup -] D[sup+] and S[sub+-]= -0.82[+-] 0.75[+-] 0.14, C[sub+-]= -0.47[+-] 0.40[+-] 0.12 for B[yields] D*[sup+] D[sup -]. In each case the first error is statistical and the second error is systematic.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
We present measurements of branching fractions and CP-violating asymmetries for neutral B meson decays to two-body final states of charged pions and kaons. The results are obtained from a data sample of about 88 million[Upsilon](4S)[yields] B[bar B] decays collected between 1999 and 2002 with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a time-independent fit we measure the charge-averaged branching fractions[Beta](B[sup 0][yields][pi][sup+][pi][sup -])= (4.7[+-] 0.6[+-] 0.2) x 10[sup -6] and[Beta](B[sup 0][yields] K[sup+][pi][sup -])= (17.9[+-] 0.9[+-] 0.7) x 10[sup -6], where the first uncertainty is statistical and the second is systematic; the 90% confidence level upper limit[Beta](B[sup 0][yields] K[sup+]K[sup -])
Author: W. D. Hulsbergen
Author: W. D. Hulsbergen![Measurements of Branching Fractions and CP-Violating Asymmetries in B Meson Decays to Charmless Two-Body States Containing a K[sup 0]. PDF](https://books.google.com/books/content/images/frontcover/JWnCjwEACAAJ?fife=w80-h100)
Author: ![Measurements of Branching Fractions and CP-Violating Asymmetries in B-Meson Decays to the Charmless Two-Body States K[sup 0]pi+, K-bar[sup 0]K[sup +], and K[sup 0]K-bar[sup 0]. PDF](https://books.google.com/books/content/images/frontcover/t_n-jwEACAAJ?fife=w80-h100)
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Author: Jinwei Wu
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Author: T Ohshima![Measurement of the Branching Fraction and CP-violating Asymmetries in Neutral B Decays to D*[sup[+-]D[sup[-+]. PDF](https://books.google.com/books/content/images/frontcover/6CzADAEACAAJ?fife=w80-h100)
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Author: Marcella Bona![MEASUREMENTS OF BRANCHING FRACTIONS AND CP VIOLATING ASYMMETRIES IN B0 ---] PI+ PI-, K+ PI-, K+ K- DECAYS. PDF](https://books.google.com/books/content/images/frontcover/LWLLjwEACAAJ?fife=w80-h100)
Author: ![Measurement of the Branching Fractions and CP Violating Asymmetries of Charmless Hadronic B Decays B [to] K*[pi] at BaBar PDF](https://books.google.com/books/content/images/frontcover/h72OjwEACAAJ?fife=w80-h100)
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