Studies of τ−→ηK−ντ and τ−→ηπ−ντ at BABAR and a search for a second-class current
We report on analyses of tau lepton decays τ−→ηK−ντ and τ−→ηπ−ντ, with η→π+π−π0, using 470 fb−1 of data from the BABAR experiment at PEP-II, collected at center-of-mass energies at and near the Υ(4S) resonance. We measure the branching fraction for the τ−→ηK−ντ decay mode, B(τ−→ηK−ντ)=(1.42±0.11(sta...
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| Hauptverfasser: | , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2 February 2011
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2011, Jahrgang: 83, Heft: 3, Pages: 1-10 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.83.032002 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.83.032002 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.83.032002 
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| Verfasserangaben: | BABAR Collaboration* |
MARC
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| 500 | |a Im Titel ist im Ausdruck "ντ" (nu tau) das τ (tau) tiefgestellt | ||
| 500 | |a Gesehen am 06.10.2022 | ||
| 520 | |a We report on analyses of tau lepton decays τ−→ηK−ντ and τ−→ηπ−ντ, with η→π+π−π0, using 470 fb−1 of data from the BABAR experiment at PEP-II, collected at center-of-mass energies at and near the Υ(4S) resonance. We measure the branching fraction for the τ−→ηK−ντ decay mode, B(τ−→ηK−ντ)=(1.42±0.11(stat)±0.07(syst))×10−4, and report a 95% confidence level upper limit for the second-class current process τ−→ηπ−ντ, B(τ−→ηπ−ντ)<9.9×10−5. | ||
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