Measurement of the Exclusive Branching Fractions and Asymmetries of B-> Pi K at BaBar PDF Download
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Author: Marie-Louise Aspinwall
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Languages : en
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Author: Marie-Louise Aspinwall
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Languages : en
Pages :
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![A Measurement of the Branching Fractions and CP Asymmetries of the Decays B± 2!K*±[pi]0 and B± 2![rho]±[pi]0 at BaBar PDF](https://books.google.com/books/content/images/frontcover/xbktnQAACAAJ?fife=w80-h100)
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Languages : en
Pages : 179
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Measurements of the branching fractions (average over charge-conjugate decays), B, and CP violating asymmetries, ACP, of the decays B± → K*±[pi]0 and B± → [rho]±[pi]0 are presented.
![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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Languages : en
Pages : 294
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Author: Nicole Isabelle Chevalier
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Languages : en
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![A Measurement of the Exclusive Branching Fraction for B->[pi] K at Babar PDF](https://books.google.com/books/content/images/frontcover/W7nNjgEACAAJ?fife=w80-h100)
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Languages : en
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![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)
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Languages : en
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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: B. Aubert
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Languages : en
Pages : 24
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The authors present preliminary measurements of the Cp asymmetries and branching fractions for B {yields} {pi}{pi} and B {yields} K{pi} decays. A total of 347 million B{bar B} events collected by the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} collider at SLAC are used for these results.
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Languages : en
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Based on a sample of 227 million B{bar B} pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the branching fraction?(B° →?°?°) = (1.17 ± 0.32 ± 0.10) x 10−6, and the asymmetry C{sub?°?°} = -0.12 ± 0.56 ± 0.06. The B° →?°?° signal has a significance of 5.0?. We also measure?(B →?+?°) = (5.8 ± 0.6 ± 0.4) x 10−6,?(B+ → K+?°) = (12.0 ± 0.7 ± 0.6) x 10−6, and the charge asymmetries?{sub?+{pi}°} = -0.01 ± 0.10 ± 0.02 and?{sub K{sup +}{pi}°} = 0.06 ± 0.06 ± 0.01. Using isospin relations we find an upper bound on the angle difference.
![Measurement of the Branching Fractions and CP Asymmetries of B[sup -] --] D[sup 0][sub (CP)]K[sup -] Decays with the BABAR Detector PDF](https://books.google.com/books/content/images/frontcover/myUIkAEACAAJ?fife=w80-h100)
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Languages : en
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The authors have reconstructed B[sup -] --> D[sup 0]K[sup -] decays with D[sup 0] mesons decaying to non-CP (K[sup -][pi][sup +]), CD-even (K[sup -]K[sup +], [pi][sup -][pi][sup +]) and CP-odd (K[sup 0][sub s][pi][sup 0]) eigenstates. They have measured the CP asymmetries A[sub CP[sup +]] = 0.40 [+-] 0.15(stat) [+-] 0.08(syst), A[sup CP[sup -]] = 0.21 [+-] 0.17(stat) [+-] 0.07(syst), and the double ratio of branching fractions R[sub +] = 0.87 [+-] 0.14(stat) [+-] 0.06(syst), R[sub -] = 0.80 [+-] 0.14(stat) [+-] 0.08(syst). These results improve the previous existing measurements from BABAR. All results presented in this document are preliminary.
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Languages : en
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