Measurement of Branching Fractions and Charge Asymmetries in B Decays to an Eta Meson and a K* Meson PDF Download
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Languages : en
Pages : 7
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The authors present measurements of branching fractions and charge asymmetries for the decays B 2![eta]K*, where K8 indicates a spin 0, 1, or 2 K [pi] system. The data sample corresponds to 344 x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric-energy ee− collider at SLAC. They measure the branching fractions (in units of 10−6): [Beta](B° 2![eta]K*°(892)) = 16.5 ± 1.1 ± 0.8, [Beta](B 2![eta]K*+(892)) = 18.9 ± 1.8 ± 1.3, [Beta](B° 2*0°) = 11.0 ± 1.6 ± 1.5, [Beta](B+ 20*+) = 18.2 ± 2.6 ± 2.6, [Beta](B° 2![eta]K*2°(1430)) = 9.6 ± 1.8 ± 1.1, and [Beta](B+ 2![eta]K*2+(1430)) = 9.1 ± 2.7 ± 1.4. They also determine the charge asymmetries for all decay modes.
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Languages : en
Pages : 7
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Book Description
The authors present measurements of branching fractions and charge asymmetries for the decays B 2![eta]K*, where K8 indicates a spin 0, 1, or 2 K [pi] system. The data sample corresponds to 344 x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric-energy ee− collider at SLAC. They measure the branching fractions (in units of 10−6): [Beta](B° 2![eta]K*°(892)) = 16.5 ± 1.1 ± 0.8, [Beta](B 2![eta]K*+(892)) = 18.9 ± 1.8 ± 1.3, [Beta](B° 2*0°) = 11.0 ± 1.6 ± 1.5, [Beta](B+ 20*+) = 18.2 ± 2.6 ± 2.6, [Beta](B° 2![eta]K*2°(1430)) = 9.6 ± 1.8 ± 1.1, and [Beta](B+ 2![eta]K*2+(1430)) = 9.1 ± 2.7 ± 1.4. They also determine the charge asymmetries for all decay modes.
![Measurement of Branching Fractions and Charge Asymmetries in B Meson Decays To[eta][prime]K*, [eta][prime][rho], And[eta][pi]. PDF](https://books.google.com/books/content/images/frontcover/zK4LkAEACAAJ?fife=w80-h100)
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Languages : en
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The authors present preliminary measurements of branching fractions and charge asymmetries for the B meson decays B[yields][eta][prime] K*, B[yields][eta][prime][rho], and B[sup+][yields][eta][prime][pi][sup+]. The data were recorded with the BABAR detector at PEP-II and correspond to 89 x 10[sup 6] B[bar B] pairs produced in e[sup+]e[sup -] annihilation through the[Upsilon](4S) resonance. They find the branching fractions[Beta](B[sup 0][yields][eta]K*[sup 0])= (19.0[sub -2.1][sup+2.2][+-] 1.3) x 10[sup -6], [Beta](B[sup+][yields][eta]K*[sup+])= (25.7[sub -3.6][sup+3.8][+-] 1.8) x 10[sup -6] with 90% confidence, and[Beta](B[sup+][yields][eta][prime][pi][sup+])= (2.8[sub -1.0][sup+1.3][+-] 0.3) x 10[sup -6] (
![Measurement of Branching Fractions and Charge Asymmetries in B Meson Decays to [eta]'K*, [eta]'[rho], and [eta][pi]. PDF](https://books.google.com/books/content/images/frontcover/-8RhnQAACAAJ?fife=w80-h100)
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Languages : en
Pages : 22
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The authors present preliminary measurements of branching fractions and charge asymmetries for the B meson decays B 2![eta]' K*, B 2![eta]'[rho], and B 2![eta]'[pi]. The data were recorded with the BABAR detector at PEP-II and correspond to 89 x 106 B{bar B} pairs produced in e+e− annihilation through the [Upsilon](4S) resonance. They find the branching fractions [Beta](B° 2![eta]K*°) = (19.0{sub -2.1}{sup +2.2} ± 1.3) x 10−6, [Beta](B+ 2![eta]K*+) = (25.7{sub -3.6}{sup +3.8} ± 1.8) x 10−6 with 90% confidence, and [Beta](B+ 2![eta]'[pi]+) = (2.8{sub -1.0}{sup +1.3} ± 0.3) x 10−6 (
Author: Hulya Atmacan
Publisher:
ISBN: 9781124263076
Category : B mesons
Languages : en
Pages : 195
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We present measurements of the decays B[superscript +] [arrow right] [straight phi][straight phi] K [superscript +] and B[superscript o] [arrow right] [straight phi][straight phi] K [superscript o] using about 464 million BB[superscript -] pairs collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We report the branching fractions of the decays B [superscript +] [arrow right] [straight phi][straight phi] K[superscript +] and B[superscript o] [arrow right] [straight phi][straight phi] K[superscript o], and CP asymmetry in the charged B mode for [straight phi][straight phi] invariant mass below 2.85 GeV/ c 2 : [Special characters omitted.] Additionally, we measure the direct CP asymmetry in B[superscript +] [arrow right] [straight phi][straight phi] K [superscript +] for [straight phi][straight phi] invariant mass within the [eta][subcript c] resonance region ([2.94-3.02] GeV/ c 2): [Special characters omitted.] No direct CP asymmetry is observed both below the [eta][subcript c] and within the [eta][subcript c] resonance, as expected within the Standard Model. In each case the uncertainties are statistical and systematic, respectively.
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Languages : en
Pages : 8
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Languages : en
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Languages : en
Pages : 16
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![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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Languages : en
Pages :
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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.
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Languages : en
Pages : 7
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The authors present measurements of branching fractions and CP-violating asymmetries in decays of B mesons to two-body final states containing a K°. The results are based on a data sample of approximately 88 million [Upsilon](4S) → B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC.
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Category :
Languages : en
Pages : 22
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The authors present preliminary measurements of branching fractions and charge asymmetries for the B meson decays B →???????? K*, B →?????????, and B →?????????+. The data were recorded with the BABAR detector at PEP-II and correspond to 89 x 106 B{bar B} pairs produced in e+e− annihilation through the?(4S) resonance. They find the branching fractions?(B° →?K*°) = (19.0{sub -2.1}{sup +2.2} ± 1.3) x 10−6,?(B+ →?K*+) = (25.7{sub -3.6}{sup +3.8} ± 1.8) x 10−6 with 90% confidence, and?(B+ →?????????+) = (2.8{sub -1.0}{sup +1.3} ± 0.3) x 10−6 (
