# Partial wave analysis of the {pi}{sup -}{pi}{sup -}{pi}{sup +} and {pi}{sup -}{pi}{sup 0}{pi}{sup 0} systems and the search for a J{sup PC}=1{sup -+} meson

## Abstract

A partial wave analysis (PWA) of the {pi}{sup -}{pi}{sup -}{pi}{sup +} and {pi}{sup -}{pi}{sup 0}{pi}{sup 0} systems produced in the reaction {pi}{sup -}p{yields}(3{pi}){sup -}p at 18 GeV/c was carried out using an isobar model assumption. This analysis is based on 3.0 M {pi}{sup -}{pi}{sup 0}{pi}{sup 0} events and 2.6 M {pi}{sup -}{pi}{sup -}{pi}{sup +} events and shows production of the a{sub 1}(1260), a{sub 2}(1320), {pi}{sub 2}(1670), and a{sub 4}(2040) resonances. Results of detailed studies of the stability of partial wave fits are presented. An earlier analysis of 250 K {pi}{sup -}{pi}{sup -}{pi}{sup +} events from the same experiment showed possible evidence for a J{sup PC}=1{sup -+} exotic meson with a mass of {approx}1.6 GeV/c{sup 2} decaying into {rho}{pi}. In this analysis of a higher statistics sample of the (3{pi}){sup -} system in two charged modes we find no evidence of an exotic meson.

- Authors:

- Department of Physics, Indiana University, Bloomington, Indiana 47405 (United States)
- (United States)
- (Russian Federation)

- Publication Date:

- OSTI Identifier:
- 20782780

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.73.072001; (c) 2006 The American Physical Society; 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; A2-1320 MESONS; A4-2040 MESONS; GEV RANGE; ISOBAR MODEL; PARTIAL WAVES; PI2-1670 MESONS; PION-PROTON INTERACTIONS; PIONS MINUS; PIONS PLUS; RESONANCE PARTICLES; REST MASS

### Citation Formats

```
Dzierba, A.R., Mitchell, R., Scott, E., Shepherd, M.R., Smith, P., Swat, M., Teige, S., Szczepaniak, A.P., Denisov, S.P., Dorofeev, V., Kachaev, I., Lipaev, V., Popov, A.V., Ryabchikov, D.I., Bodyagin, V.A., Demianov, A., Department of Physics and Nuclear Theory Center, Indiana University, Bloomington, Indiana 47405, Institute for High Energy Physics, Protvino, Russian Federation 142284, and Nuclear Physics Institute, Moscow State University, Moscow, 119992.
```*Partial wave analysis of the {pi}{sup -}{pi}{sup -}{pi}{sup +} and {pi}{sup -}{pi}{sup 0}{pi}{sup 0} systems and the search for a J{sup PC}=1{sup -+} meson*. United States: N. p., 2006.
Web. doi:10.1103/PHYSREVD.73.072001.

```
Dzierba, A.R., Mitchell, R., Scott, E., Shepherd, M.R., Smith, P., Swat, M., Teige, S., Szczepaniak, A.P., Denisov, S.P., Dorofeev, V., Kachaev, I., Lipaev, V., Popov, A.V., Ryabchikov, D.I., Bodyagin, V.A., Demianov, A., Department of Physics and Nuclear Theory Center, Indiana University, Bloomington, Indiana 47405, Institute for High Energy Physics, Protvino, Russian Federation 142284, & Nuclear Physics Institute, Moscow State University, Moscow, 119992.
```*Partial wave analysis of the {pi}{sup -}{pi}{sup -}{pi}{sup +} and {pi}{sup -}{pi}{sup 0}{pi}{sup 0} systems and the search for a J{sup PC}=1{sup -+} meson*. United States. doi:10.1103/PHYSREVD.73.072001.

```
Dzierba, A.R., Mitchell, R., Scott, E., Shepherd, M.R., Smith, P., Swat, M., Teige, S., Szczepaniak, A.P., Denisov, S.P., Dorofeev, V., Kachaev, I., Lipaev, V., Popov, A.V., Ryabchikov, D.I., Bodyagin, V.A., Demianov, A., Department of Physics and Nuclear Theory Center, Indiana University, Bloomington, Indiana 47405, Institute for High Energy Physics, Protvino, Russian Federation 142284, and Nuclear Physics Institute, Moscow State University, Moscow, 119992. Sat .
"Partial wave analysis of the {pi}{sup -}{pi}{sup -}{pi}{sup +} and {pi}{sup -}{pi}{sup 0}{pi}{sup 0} systems and the search for a J{sup PC}=1{sup -+} meson". United States.
doi:10.1103/PHYSREVD.73.072001.
```

```
@article{osti_20782780,
```

title = {Partial wave analysis of the {pi}{sup -}{pi}{sup -}{pi}{sup +} and {pi}{sup -}{pi}{sup 0}{pi}{sup 0} systems and the search for a J{sup PC}=1{sup -+} meson},

author = {Dzierba, A.R. and Mitchell, R. and Scott, E. and Shepherd, M.R. and Smith, P. and Swat, M. and Teige, S. and Szczepaniak, A.P. and Denisov, S.P. and Dorofeev, V. and Kachaev, I. and Lipaev, V. and Popov, A.V. and Ryabchikov, D.I. and Bodyagin, V.A. and Demianov, A. and Department of Physics and Nuclear Theory Center, Indiana University, Bloomington, Indiana 47405 and Institute for High Energy Physics, Protvino, Russian Federation 142284 and Nuclear Physics Institute, Moscow State University, Moscow, 119992},

abstractNote = {A partial wave analysis (PWA) of the {pi}{sup -}{pi}{sup -}{pi}{sup +} and {pi}{sup -}{pi}{sup 0}{pi}{sup 0} systems produced in the reaction {pi}{sup -}p{yields}(3{pi}){sup -}p at 18 GeV/c was carried out using an isobar model assumption. This analysis is based on 3.0 M {pi}{sup -}{pi}{sup 0}{pi}{sup 0} events and 2.6 M {pi}{sup -}{pi}{sup -}{pi}{sup +} events and shows production of the a{sub 1}(1260), a{sub 2}(1320), {pi}{sub 2}(1670), and a{sub 4}(2040) resonances. Results of detailed studies of the stability of partial wave fits are presented. An earlier analysis of 250 K {pi}{sup -}{pi}{sup -}{pi}{sup +} events from the same experiment showed possible evidence for a J{sup PC}=1{sup -+} exotic meson with a mass of {approx}1.6 GeV/c{sup 2} decaying into {rho}{pi}. In this analysis of a higher statistics sample of the (3{pi}){sup -} system in two charged modes we find no evidence of an exotic meson.},

doi = {10.1103/PHYSREVD.73.072001},

journal = {Physical Review. D, Particles Fields},

number = 7,

volume = 73,

place = {United States},

year = {Sat Apr 01 00:00:00 EST 2006},

month = {Sat Apr 01 00:00:00 EST 2006}

}