Abstract
The spin-parity analysis of the exclusive reaction in flight is presented. The main aim is to study the 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 with mass and width and , and a tensorial one with mass and width , respectively. In addition, the analysis requires the presence of a scalar state at , broad, and of a second vectorial one, in addition to the signal, with mass and width and , respectively.
- Received 19 May 1997
DOI:https://doi.org/10.1103/PhysRevD.57.55
©1998 American Physical Society