On the role of the alpha(1)(1260) meson in tau -> 4 pi nu(tau) decay

Citation
Ae. Bondar et al., On the role of the alpha(1)(1260) meson in tau -> 4 pi nu(tau) decay, PHYS LETT B, 466(2-4), 1999, pp. 403-407
Citations number
22
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
466
Issue
2-4
Year of publication
1999
Pages
403 - 407
Database
ISI
SICI code
0370-2693(19991104)466:2-4<403:OTROTA>2.0.ZU;2-C
Abstract
It is shown that a simple model successfully describing experimental data o n the process e(+)e(-) --> 4 pi can also qualitatively account for the data of CLEOII and ALEPH obtained recently in the decay tau --> 4 pi v(tau). Th e model is based on the assumption of the a(1)(1260)pi and omega pi dominan ce as intermediate states. Our observation is in contrast with the claim by ARGUS that the rho-meson signal in the tau --> 4 pi v(tau) decay can not b e explained by the a(1)(1260)pi intermediate state. (C) 1999 Published by E lsevier Science B.V. All rights reserved.