| Title: |
Published in Phys. Rev. D 62, 056011 (2000) Many pion decays of ρ(770) and ω(782) mesons in chiral theory. |
| Authors: |
N. N. Achasov; A. A. Kozhevnikov; Typeset Using Revtex |
| Contributors: |
The Pennsylvania State University CiteSeerX Archives |
| Source: |
http://arxiv.org/pdf/hep-ph/0003094v3.pdf. |
| Publication Year: |
2008 |
| Collection: |
CiteSeerX |
| Description: |
The decays ρ(770) → 4π and ω(782) → 5π are considered in detail in the approach based on the Weinberg Lagrangian obtained upon the nonlinear realization of chiral symmetry, added with the term induced by the anomalous Lagrangian of Wess and Zumino. The partial widths and excitation curves of the decays ρ 0 → 2π + 2π − , π + π − 2π 0, ρ ± → 2π ± π ∓ π 0, ρ ± → π ± 3π 0 are evaluated for e + e − annihilation, photoproduction and τ lepton decays. The results of calculations are compared with the recent CMD-2 data on the decay ρ 0 → 2π + 2π − observed in e + e − annihilation. The ω → 5π decay widths and excitation curves in e + e − annihilation are obtained. The angular distributions for various combinations of the final pions in the decays ρ → 4π and ω → 5π are written. The perspectives of the experimental study of the above decays in e + e − annihilation, τ lepton decays and photoproduction are discussed. |
| Document Type: |
text |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.344.6941 |
| Availability: |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.344.6941; http://arxiv.org/pdf/hep-ph/0003094v3.pdf |
| Rights: |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| Accession Number: |
edsbas.77C418C1 |
| Database: |
BASE |