@Article{BABARCollaborationAubert_etal2010, author="BABAR Collaboration (Aubert, B. et al and Azzolini, V. and Lopez-March, N. and Martinez-Vidal, F. and Milanes, D. A. and Oyanguren, A.", title="Measurements of Charged Current Lepton Universality and vertical bar V-us vertical bar Using Tau Lepton Decays to e(-)(nu)over-bar(e)nu(tau), mu(-)(nu)over-bar(mu)nu(tau), pi(-)nu(tau), and K-nu(tau)", journal="Physical Review Letters", year="2010", publisher="Amer Physical Soc", volume="105", number="5", pages="051602--8pp", abstract="Using 467 fb(-1) of e(+)e(-) annihilation data collected with the BABAR detector, we measure B(tau(-)->mu(-)(nu) over bar (mu)nu(tau))/B(tau(-)-> e(-)(nu) over bar (e)nu(tau)) = (0.9796 +/- 0.0016 +/- 0.0036), B(tau(-)->pi(-)nu(tau))/B(tau(-)-> e(-)nu(e)nu(tau)) = (0.5945 +/- 0.0014 +/- 0.0061), and B(tau(-)-> K-nu(tau))/B(tau(-)-> e(-)nu(e)nu(tau)) = (0.03882 +/- 0.00032 +/- 0.00057), where the uncertainties are statistical and systematic, respectively. From these precision similar to measurements, we test the standard model assumption of $\mu$- e and tau -- $\mu$charge current lepton universality and provide determinations of vertical bar V-us vertical bar experimentally independent of the decay of a kaon.", optnote="ISI:000280472700002", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=402), last updated on Thu, 24 Mar 2011 11:10:03 +0000", issn="0031-9007", doi="10.1103/PhysRevLett.105.051602", opturl="http://fr.arxiv.org/abs/0912.0242", opturl="https://doi.org/10.1103/PhysRevLett.105.051602", language="English" }