@Article{GomezDumm_etal2010,
author="Gomez Dumm, D.
and Roig, P.
and Pich, A.
and Portoles, J.",
title="tau -> pi pi pi nu(tau) decays and the a(1)(1260) off-shell width revisited",
journal="Physics Letters B",
year="2010",
publisher="Elsevier Science Bv",
volume="685",
number="2-3",
pages="158--164",
optkeywords="Hadron tau decays; Chiral Lagrangians; QCD; 1/N expansion",
abstract="The tau -> pi pi pi nu(tau) decay is driven by the hadronization of the axial-vector current. Within the resonance chiral theory, and considering the large-N-C expansion, this process has been studied in Ref. [1] (D. Gomez Dumm, A. Pich, J. Portoles, 2004). In the light of later developments we revise here this previous work by including a new off-shell width for the lightest a(1) resonance that provides a good description of the tau -> pi pi pi nu(tau) spectrum and branching ratio. We also consider the role of the rho(1450) resonance in these observables. Thus we bring in an overall description of the tau -> pi pi pi nu(tau) process in excellent agreement with our present experimental knowledge.",
optnote="ISI:000275148800010",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=488), last updated on Thu, 01 Nov 2012 20:03:46 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2010.01.059",
opturl="http://lanl.arxiv.org/abs/0911.4436",
opturl="https://doi.org/10.1016/j.physletb.2010.01.059",
language="English"
}