Measurements of charged current lepton universality and |Vus| using tau lepton decays to e−ν[bar]eντ, μ−ν[bar]μντ, π−ντ, and K−ντ
Using 467 fb−1 of e+e− annihilation data collected with the BABAR detector, we measure B(τ−→μ−¯νμντ)B(τ−→e−¯νeντ)=(0.9796±0.0016±0.0036), B(τ−→π−ντ)B(τ−→e−¯νeντ)=(0.5945±0.0014±0.0061), and B(τ−→K−ντ)B(τ−→e−¯νeντ)=(0.03882±0.00032±0.00057), where the uncertainties are statistical and systematic, res...
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| Main Authors: | , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
28 July 2010
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| In: |
Physical review letters
Year: 2010, Volume: 105, Issue: 5, Pages: 1-8 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.105.051602 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.105.051602 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.105.051602 
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| Author Notes: | BABAR Collaboration* |
MARC
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| 245 | 1 | 0 | |a Measurements of charged current lepton universality and |Vus| using tau lepton decays to e−ν[bar]eντ, μ−ν[bar]μντ, π−ντ, and K−ντ |c BABAR Collaboration* |
| 246 | 3 | 3 | |a Measurements of charged current lepton universality and |Vus| using tau lepton decays to e − ν [bar] e ν tau, mu − ν [bar] mu ν tau, phi − ν tau, and K − ν tau |
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| 500 | |a Im Titel steht der erste und der dritte Buchstabe v mit einem Oberstrich | ||
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| 500 | |a Gesehen am 28.11.2022 | ||
| 520 | |a Using 467 fb−1 of e+e− annihilation data collected with the BABAR detector, we measure B(τ−→μ−¯νμντ)B(τ−→e−¯νeντ)=(0.9796±0.0016±0.0036), B(τ−→π−ντ)B(τ−→e−¯νeντ)=(0.5945±0.0014±0.0061), and B(τ−→K−ντ)B(τ−→e−¯νeντ)=(0.03882±0.00032±0.00057), where the uncertainties are statistical and systematic, respectively. From these precision τ measurements, we test the standard model assumption of μ−e and τ−μ charge current lepton universality and provide determinations of |Vus| experimentally independent of the decay of a kaon. | ||
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