RT Journal Article
T1 Causality and analyticity in πN resonant wavesresonant waves
A1 Fernández-Rañada, Antonio
AB The requirements of causality and finite range lead to analytic expressions for theS-matrix in πN resonant waves. The singularities in the complex energy plane are obtained. From them it is easy to calculate the mass and width of the resonances. It is shown that a resonance is a rather complex phenomenon characterized by several mass values which can be very different. For instance, the strange behaviour of theP 11 resonant state is due to this fact.
PB Societe Italiana di Fisica
SN 0369-3546
YR 1967
FD 1967-11-21
LK https://hdl.handle.net/20.500.14352/64926
UL https://hdl.handle.net/20.500.14352/64926
NO © Società Italiana di Fisica
DS Docta Complutense
RD 10 abr 2025