Study of the tau- -> 3h- 2h+ nu-tau Decay
B. Aubert, et al, BABAR Collaboration
TL;DR
This paper reports a preliminary measurement of the tau lepton decay into five charged hadrons, highlighting the significant role of the rho resonance, using data from the BaBar detector.
Contribution
It provides the first measurement of the branching fraction for tau- -> 3h- 2h+ nu and demonstrates the rho resonance's influence in this decay mode.
Findings
Branching fraction measured as (8.52 +/- 0.09 +/- 0.40) x 10^-4
Evidence of rho resonance involvement in the decay
Data supports strong rho resonance contribution
Abstract
A preliminary measurement of the branching fraction of the tau- -> 3h-2h+nu decay (h= pi, K$) with the BaBar detector is found to be {8.52 +/- 0.09 +/- 0.40} x 10E-4, where the first error is statistical and the second is systematic. The data show evidence that the rho resonance plays a strong role in the decay of the tau lepton to five charged hadrons.
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Taxonomy
TopicsQuantum chaos and dynamical systems · Advanced NMR Techniques and Applications · Lanthanide and Transition Metal Complexes