Studies of Hadronic T Decays Using BABAR Detector
Title | Studies of Hadronic T Decays Using BABAR Detector PDF eBook |
Author | Timothy West |
Publisher | |
Pages | 182 |
Release | 2008 |
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Hadronic B Decays with BABAR.
Title | Hadronic B Decays with BABAR. PDF eBook |
Author | |
Publisher | |
Pages | 9 |
Release | 2003 |
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The authors report about the studies of the decay channels B− → D°K−, B° → D*− a1 and B° → D{sub s}{sup (*)-}?+ with a sample of 62 x 106?(4S) decays into B meson pairs collected with the BABAR detector at the PEP II asymmetric e+e− collider.
Studies of the Strange Hadronic [tau] Decay [formula] Using the BaBar Detector
Title | Studies of the Strange Hadronic [tau] Decay [formula] Using the BaBar Detector PDF eBook |
Author | Andrew J. Lyon |
Publisher | |
Pages | 194 |
Release | 2004 |
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ISBN |
Recent Results in Charmless Hadronic B Decays from BABAR.
Title | Recent Results in Charmless Hadronic B Decays from BABAR. PDF eBook |
Author | |
Publisher | |
Pages | 7 |
Release | 2004 |
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ISBN |
Studies of the Strange Hadronic Tau Decay Tau- to K0(S) Pi- Nu-Tau Using the BaBar Detector
Title | Studies of the Strange Hadronic Tau Decay Tau- to K0(S) Pi- Nu-Tau Using the BaBar Detector PDF eBook |
Author | |
Publisher | |
Pages | 194 |
Release | 2006 |
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ISBN |
A study of the decay?− → K{sub S}°?−?{sub?} (K{sub S}° →??−) using the BABAR detector is presented. Using 124.4 fb−1 of data we measure?(?− → {bar K}°?−?{sub {tau}}) = (0.830 ± 0.005(stat) ± 0.042(syst))%, which is the world's most precise measurement to date of this branching ratio, and is consistent with the current world average. This preliminary result, unlike most of the?({tau}− → {bar K}°?−?{sub {tau}}) measurements already published, is systematics dominated and so the biggest future improvement to this number should come from reducing the systematic uncertainties in the analysis. A study of the K? mass spectrum, from which the strange (K?) spectral function can be measured, reveals excess contributions above the K*(892) tail at higher K? mass. While in the past this has been thought to be due to K*(892) - K*(1410) interference, we find that the K*(1410), whose branching ratio to K? is approximately 7%, seems insufficient to explain the excess mass observed in the data. Instead, we perform a fit using a K*(892) - K*(1680) interference model and find better agreement. The discrepancy that remains could be due to an s-wave contribution to the interference that is not parameterized in the model used, and/or detector smearing that is not accounted for in our fit. We also attempt to find an s-wave contribution to the K? mass spectrum by searching for an sp-interference effect. While we find a hint that such an effect exists, we have neither the confidence in the statistics nor systematics in the higher K? mass region to announce an observation. We conclude that it would be a worthwhile study to pursue.
Hadronic B Decays at BaBar
Title | Hadronic B Decays at BaBar PDF eBook |
Author | |
Publisher | |
Pages | 5 |
Release | 2002 |
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We present preliminary results on hadronic decays of B mesons, based on data recorded at the?(4S) resonance with the BABAR detector at the PEP-II B-factory at SLAC. We measure branching fractions of many B decay modes, including decays to J/??K, J/???− and?{sub c}K final states. We report the observation of the decay B → D{sub s}+?− and the first measurement of the flavor-tagged D meson production in B° decays. Since their preliminary nature, the results presented in this paper are based on different data samples.
Studies of Rare Hadronic B Decays with BaBar
Title | Studies of Rare Hadronic B Decays with BaBar PDF eBook |
Author | |
Publisher | |
Pages | 4 |
Release | 2007 |
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We present a selection of recent results from studies of rare hadronic B decays based on a sample of 232 million B{bar B} pairs, corresponding to an integrated luminosity of 211 fb−1, which were recorded with the BABAR detector at the PEP-II asymmetric-energy ee− storage ring.