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Author | : John Joseph O'Neill (Ph. D. in physics) |
Publisher | : |
Total Pages | : 143 |
Release | : 1996 |
Genre | : Mesons |
ISBN | : |
Download Observation of Exclusive B Meson Decays to Final States Containing a Charmed Baryon Book in PDF, ePub and Kindle
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Release | : 1988 |
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Download Observation of charmless B meson decays Book in PDF, ePub and Kindle
Author | : Heather S. Krieg |
Publisher | : |
Total Pages | : 158 |
Release | : 1999 |
Genre | : B mesons |
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Download Two-body B Meson Decays Book in PDF, ePub and Kindle
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Total Pages | : 24 |
Release | : 2012 |
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Download Observation and Study of the Baryonic B-meson Decays B to D(*) P Pbar?? Book in PDF, ePub and Kindle
We present results for B-meson decay modes involving a charm meson, protons, and pions using 455 x 106 B{bar B} pairs recorded by the BABAR detector at the SLAC PEP-II asymmetric-energy ee− collider. The branching fractions are measured for the following ten decays: {bar B}° → D°p{bar p}, {bar B}° → D*°p{bar p}, {bar B}° → D+p{bar p}?−, {bar B}° → D*+p{bar p}?−, B− → D°p{bar p}?−, B− → D*°pp?−, {bar B}° → D°p{bar p}?−?+, {bar B}° → D*°p{bar p}?−?+, B− → D+p{bar p}?−?−, and B− → D*+p{bar p}?−?−. The four B− and the two five-body B° modes are observed for the first time. The four-body modes are enhanced compared to the three- and the five-body modes. In the three-body modes, the M(p{bar p}) and M(D{sup (*)0}p) invariant mass distributions show enhancements near threshold values. In the four-body mode {bar B}° → D+p{bar p}?−, the M(p?−) distribution shows a narrow structure of unknown origin near 1.5GeV/c2. The distributions for the five-body modes, in contrast to the others, are similar to the expectations from uniform phase-space predictions.
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Total Pages | : 5 |
Release | : 2004 |
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Download Observation of B° Meson Decay To?1(1260)?− Book in PDF, ePub and Kindle
The authors present a preliminary measurement of the branching fraction of the B meson decay B° -->?1(1260) -->?+?+?−. The data were recorded with the BABAR detector at the SLAC B factory PEP-II and correspond to 124 x 106 B{bar B} pairs produced in e+e− annihilation through the?(4S) resonance. They find the branching fraction B(B° -->?1+(1260)?−) = (42.6 ± 4.2 ± 4.1) x 10−6. The fitted values of the?1(1260) parameters are m{sub {alpha}1} = 1.19 ± 0.02 GeV/c2 and?{sub {alpha}1} = 312 ± 55 MeV/c2.
Author | : |
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Total Pages | : 8 |
Release | : 2009 |
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Download Observation of B Meson Decays to OmegaK* and Improved Measurements for Omegarho and Omegaf0 Book in PDF, ePub and Kindle
We present measurements of B meson decays to the final states [omega]K*, [omega][rho], and [omega]f0, where K* indicates a spin 0, 1, or 2 strange meson. The data sample corresponds to 465 x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II ee− collider at SLAC. B meson decays involving vector-scalar, vector-vector, and vector-tensor final states are analyzed; the latter two shed new light on the polarization of these final states. We measure the branching fractions for nine of these decays; five are observed for the first time. For most decays we also measure the charge asymmetry and, where relevant, the longitudinal polarization f{sub L}.
Author | : ARGUS Collaboration |
Publisher | : |
Total Pages | : 8 |
Release | : 1989 |
Genre | : |
ISBN | : |
Download Observation of Semileptonic Charmless B Meson Decays Book in PDF, ePub and Kindle
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Total Pages | : |
Release | : 2004 |
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Download Observation of B[sup 0] Meson Decay to [alpha][sub 1][sup +](1260) [pi][sup -]. Book in PDF, ePub and Kindle
The authors present a preliminary measurement of the branching fraction of the B meson decay B[sup 0] --> [alpha][sup 1][sup +](1260) --> [pi][sup +][pi][sup +][pi][sup -]. The data were recorded with the BABAR detector at the SLAC B factory PEP-II and correspond to 124 x 10[sup 6] B[bar B] pairs produced in e[sup +]e[sup -] annihilation through the [Upsilon](4S) resonance. They find the branching fraction B(B[sup 0] --> [alpha][sub 1][sup +](1260)[pi][sup -]) = (42.6 [+-] 4.2 [+-] 4.1) x 10[sup -6]. The fitted values of the [alpha][sub 1](1260) parameters are m[sub [alpha][sub 1]] = 1.19 [+-] 0.02 GeV/c[sup 2] and [Gamma][sub [alpha][sub 1]] = 312 [+-] 55 MeV/c[sup 2].
Author | : Deutsches Elektronen-Synchrotron Hamburg |
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Total Pages | : |
Release | : 1987 |
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Download Observation of inclusive Duction in B meson decay Book in PDF, ePub and Kindle
Author | : |
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Total Pages | : 6 |
Release | : 2013 |
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Download Observation And Study of B Meson Decays with Lambda(C) Baryons with the BaBar Detector Book in PDF, ePub and Kindle