# Effect of the a{sub 1}(1260) resonance on the {rho} {sup {yields}} 4{pi} and {omega},o {sup {yields}} 5 {pi} decay widths

## Abstract

The contribution of the a{sub 1}(1260) meson to the {rho}(770) {sup {yields}} 4{pi},{omega}(782) {sup {yields}} 5{pi}, and o(1020) {sup {yields}} 5{pi} decay amplitudes is analyzed on the basis of the chiral model of pseudoscalar, vector, and axial-vector mesons that is based on generalized hidden local symmetry and which is supplemented with terms induced by the Wess-Zumino anomaly. It is shown that the intensities of the above decays are enhanced upon taking into account the a{sub 1} meson in intermediate states. For the a{sub 1}-meson mass m{sub a{sub 1}} varying from 1.23 GeV to m{sub p}{radical}2=1.09 GeV, the enhancement factor grows from 1.3 to 1.9.

- Authors:

- Russian Academy of Sciences, Sobolev Institute of Mathematics, Siberian Division (Russian Federation), E-mail: kozhev@math.nsc.ru

- Publication Date:

- OSTI Identifier:
- 21076113

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Physics of Atomic Nuclei; Journal Volume: 69; Journal Issue: 2; Other Information: DOI: 10.1134/S1063778806020141; Copyright (c) 2006 Nauka/Interperiodica; Article Copyright (c) 2006 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; A1-1260 MESONS; CHIRALITY; DECAY AMPLITUDES; GEV RANGE 01-10; INTERMEDIATE STATE; MASS; OMEGA-782 MESONS; PARTICLE DECAY; PIONS; RESONANCE; RHO-770 MESONS; SYMMETRY

### Citation Formats

```
Achasov, N. N., E-mail: achasov@math.nsc.ru, and Kozhevnikov, A. A..
```*Effect of the a{sub 1}(1260) resonance on the {rho} {sup {yields}} 4{pi} and {omega},o {sup {yields}} 5 {pi} decay widths*. United States: N. p., 2006.
Web. doi:10.1134/S1063778806020141.

```
Achasov, N. N., E-mail: achasov@math.nsc.ru, & Kozhevnikov, A. A..
```*Effect of the a{sub 1}(1260) resonance on the {rho} {sup {yields}} 4{pi} and {omega},o {sup {yields}} 5 {pi} decay widths*. United States. doi:10.1134/S1063778806020141.

```
Achasov, N. N., E-mail: achasov@math.nsc.ru, and Kozhevnikov, A. A.. Wed .
"Effect of the a{sub 1}(1260) resonance on the {rho} {sup {yields}} 4{pi} and {omega},o {sup {yields}} 5 {pi} decay widths". United States.
doi:10.1134/S1063778806020141.
```

```
@article{osti_21076113,
```

title = {Effect of the a{sub 1}(1260) resonance on the {rho} {sup {yields}} 4{pi} and {omega},o {sup {yields}} 5 {pi} decay widths},

author = {Achasov, N. N., E-mail: achasov@math.nsc.ru and Kozhevnikov, A. A.},

abstractNote = {The contribution of the a{sub 1}(1260) meson to the {rho}(770) {sup {yields}} 4{pi},{omega}(782) {sup {yields}} 5{pi}, and o(1020) {sup {yields}} 5{pi} decay amplitudes is analyzed on the basis of the chiral model of pseudoscalar, vector, and axial-vector mesons that is based on generalized hidden local symmetry and which is supplemented with terms induced by the Wess-Zumino anomaly. It is shown that the intensities of the above decays are enhanced upon taking into account the a{sub 1} meson in intermediate states. For the a{sub 1}-meson mass m{sub a{sub 1}} varying from 1.23 GeV to m{sub p}{radical}2=1.09 GeV, the enhancement factor grows from 1.3 to 1.9.},

doi = {10.1134/S1063778806020141},

journal = {Physics of Atomic Nuclei},

number = 2,

volume = 69,

place = {United States},

year = {Wed Feb 15 00:00:00 EST 2006},

month = {Wed Feb 15 00:00:00 EST 2006}

}

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