About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Paper
Bound states, resonances, and poles in low-energy KN interaction models
Abstract
The locations of the dynamic poles in the complex energy plane of the s-wave T matrix for the coupled (KN,) system are calculated. Investigated are a quark bag model and several potential models, including one that agrees with the strong interaction shift in kaonic hydrogen as well as scattering data. Each potential model is found to support either one or no poles, while the bag model is found to support two. The poles energies are found to be quite different from the energy of the *(1405) determined by phenomenological analyses along the real energy axis. © 1990 The American Physical Society.