Polarization and Handedness in Tau -> 3 Pi + Neutrino Decay Produced in e+e- Annihilations
| dc.creator | Tornqvist, N. A. | |
| dc.date | 1992-12-09 | |
| dc.date.accessioned | 2026-07-07T03:55:51Z | |
| dc.date.available | 2026-07-07T03:55:51Z | |
| dc.description | We discuss the concept of handedness applied to $τ$ production in $e^+e^-$ annihilations with $τ$ decaying into $a_1ν_τ\to 3πν_τ$. The $a_1\to 3π$ decay is particularly interesting since it (together with $h_1\to 3π$) is the lightest hadronic decay in which the helicity of the initial state can be determined from the distribution of the final particle momenta. Thus it is the first example of a helicity self-analysing strong decay, as $Λ\to Nπ$ is for weak decays. Apart from providing a new method for determining the $τ$ polarization from the parity conserving part in the weak decay, this reaction provides a very instructive and useful demonstration of the handedness asymmetry as a measure of parton polarization. Thus we believe that experience gained from analyses of handedness in $τ\to 3πν_τ$ decay will be very useful when looking for the similar asymmetry of jet handedness which can measure quark or gluon polarization. | |
| dc.description | 5 pages, no figures, standard LATEX, Talk at SPIN92 conference Nagoya, Japan 9-14.Nov 1992 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9212242 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9212242 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/44715 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Polarization and Handedness in Tau -> 3 Pi + Neutrino Decay Produced in e+e- Annihilations | |
| dc.type | text |