| Popis: |
Low-energy K−-meson interactions in hydrogen are studied in the following channels: K−+p→K−+p, K−+p→Σ−+π+, K−+p→Σ++π−, and cross sections, as a function of momentum, are presented in the region of 60-300 MeV/c K− laboratory momentum. These cross sections, combined with existing data, are used to fit the zero-effective-range theory of Dalitz and Tuan. Two possible solutions are obtained; the preferred one agrees with previous higher energy data. The favored solution also suggests an S-wave bound state at 1410 MeV, which could be associated with the Y0* at 1405 MeV whose spin is still undetermined. Various properties of the two solutions are presented for K−p interactions and K20p interactions. |
