ISSN:
1434-601X
Keywords:
PACS. 25.10.+s Nuclear reactions involving few-nucleon systems – 13.75.-n Hadron induced reactions – 13.60.Le Meson production
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: We investigate the reactions πN↦a 0 N and pp↦da 0 + near threshold and at medium energies. An effective Lagragian approach and the Regge pole model are applied to analyze different contributions to the cross-section of the reaction πN↦a 0 N. These results are used to calculate the differential and total cross-sections of the reaction pp↦da 0 + within the framework of the two-step model in which two nucleons produce an a0-meson via π-meson exchange and fuse to a deuteron. The necessity of new measurements on a0 production and branching fractions (of its decay to the K and πη channels) is emphasized for clarifying the a0 structure. Detailed predictions for the reaction pp→da 0 + are presented for the energy regime of the proton synchrotron COSY-Jülich.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100500070045
