Study of the f{sub 0}(1500)/f{sub 2}(1565) production in the exclusive annihilation {bar n}p{r_arrow}{pi}{sup +}{pi}{sup +}{pi}{sup {minus}} in flight
Journal Article
·
· Physical Review, D
OSTI ID:566066
The spin-parity analysis of the {bar n}p{r_arrow}{pi}{sup +}{pi}{sup +}{pi}{sup {minus}} exclusive reaction in flight is presented. The main aim is to study the ({pi}{sup +}{pi}{sup {minus}}) invariant mass spectrum in the region around 1500 MeV. The analysis was performed with a Breit-Wigner parametrization for all the resonant states and, for the scalar sector in the mass region below 1.2 GeV, by means of a K-matrix-like treatment. It clearly shows the need for two states, a scalar one (0{sup ++}) with mass and width (1522{plus_minus}25) MeV and (108{plus_minus}33) MeV, and a tensorial one (2{sup ++}) with mass (1575{plus_minus}18) MeV and width (119{plus_minus}24) MeV, respectively. In addition, the analysis requires the presence of a scalar state at (1280{plus_minus}55) MeV, (323{plus_minus}13) MeV broad, and of a second vectorial one, in addition to the {rho}{sup 0}(770) signal, with mass and width (1348{plus_minus}33) MeV and (275{plus_minus}10) MeV, respectively. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 566066
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 57; ISSN 0556-2821; ISSN PRVDAQ
- Country of Publication:
- United States
- Language:
- English
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