A Measurement of the Branching Fractions and CP Asymmetries for the Decays B±{u2192}p±???????? and B±{u2192}K*???????? with the Babar Detector PDF Download
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Author: James Robert Gaillard
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Languages : en
Pages : 0
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Author: James Robert Gaillard
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: James Robert Gaillard
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Languages : en
Pages : 356
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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*±?0 and B± → ?±?0 are presented.
![Measurement of the Branching Fractions and CP Asymmetries of B− --] D°{sub (CP)}K− Decays with the BABAR Detector PDF](https://books.google.com/books/content/images/frontcover/KtXfwQEACAAJ?fife=w80-h100)
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Languages : en
Pages : 5
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The authors have reconstructed B− --> D°K− decays with D° mesons decaying to non-CP (K−?), CD-even (K−K+,?−?+) and CP-odd (K°{sub s}?°) 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+ = 0.87 ± 0.14(stat) ± 0.06(syst), R− = 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.
![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.
![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)
Author:
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ISBN:
Category :
Languages : en
Pages : 179
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Book Description
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.
![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 -])
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![Measurement of the Branching Fractions and CP-asymmetry of B- -]D0(cp)K- Decays with the BaBar Detector PDF](https://books.google.com/books/content/images/frontcover/KBTvjwEACAAJ?fife=w80-h100)
Author: B. Aubert
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Languages : en
Pages : 7
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The authors present a study of B{sup -} {yields} D{sub CP}{sup 0} K{sup -} decays, where D{sub CP}{sup 0} is reconstructed in CP-event channels, based on a sample of 88.8 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II e{sup +}e{sup -} storage ring. They measure the ratio of Cabibbo-suppressed to Cabibbo-favored branching fractions {Beta}(B{sup -} {yields} D{sub CP}{sup 0} K{sup -})/{Beta}(B{sup -} {yields} D{sub CP}{sup 0}{pi}{sup -}) = (8.8 {+-} 1.6(stat) {+-} 0.5(syst)) x 10{sup -2} and the CP asymmetry A{sub CP} = 0.07 {+-} 0.17(stat) {+-} 0.06(syst). The authors also measure {Beta}(B{sup -} {yields} D{sup 0}K{sup -})/{Beta}(B{sup -} {yields} D{sup 0}{pi}{sup -}) = (8.31 {+-} 0.35(stat) {+-} 0.20(syst)) x 10{sup -2} using a sample of 61.0 million B{bar B} pairs.
