%0 Journal Article
%T Measurement of the branching fractions of the radiative leptonic tau decays tau -> e gamma v(v)over-bar and tau -> μgamma v(v)over-bar at BABAR
%A BABAR Collaboration (Lees, J. P. et al
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Villanueva-Perez, P.
%J Physical Review D
%D 2015
%V 91
%N 5
%I Amer Physical Soc
%@ 1550-7998
%G English
%F BABARCollaborationLees_etal2015
%O WOS:000351876200001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2177), last updated on Thu, 23 Apr 2015 12:41:29 +0000
%X We perform a measurement of the tau -> l gamma v (v) over bar (l = e, mu) branching fractions for a minimum photon energy of 10 MeV in the tau rest frame, using 431 fb(-1) of e(+) e(-) collisions collected at the center-of-mass energy of the Upsilon(4S) resonance with the BABAR detector at the PEP-II storage rings. We find B(tau -> μgamma v (v) over bar = (3.69 +/- 0.03 +/- 0.10) x 10(-3) and B(tau -> e gamma v (v) over bar = (1.847 +/- 0.015 +/- 0.052) x 10(-2), where the first quoted error is statistical and the second is systematic. These results are substantially more precise than previous measurements.
%R 10.1103/PhysRevD.91.051103
%U http://arxiv.org/abs/1502.01784
%U https://doi.org/10.1103/PhysRevD.91.051103
%P 051103-8pp