Open AccessΛ-particle energies from the (π+.Κ+) associated production reaction on nuclei and the state dependence of the Λ-nucleus potential
Author(s) -
G. A. Lalazissis
Publication year - 2019
Publication title -
hnps advances in nuclear physics
Language(s) - English
Resource type - Journals
eISSN - 2654-0088
pISSN - 2654-007X
DOI - 10.12681/hnps.2363
Subject(s) - nucleus , woods–saxon potential , range (aeronautics) , particle (ecology) , state (computer science) , basis (linear algebra) , atomic physics , physics , nuclear reaction , production (economics) , nuclear physics , chemistry , materials science , mathematics , geology , biology , oceanography , geometry , macroeconomics , algorithm , economics , composite material , microbiology and biotechnology
A Λ-nucleus potential of the symmetrized Woods-Saxon type is mainly used and the Λ-particle energies deduced from the (π+ ,K+) associated production reaction on nuclei are analysed by a least squares fitting. Although a firm quantitative conclusion about the state dependence of the Λ-nucleus potential cannot be drawn on the basis of the existing data from the (π+,.Κ'+) process, it appears that this dependence is quite weak, as it should be also expected on the basis of other studies. The present analysis indicates that the depth of the symmetrized Woods-Saxon Λ-nucleus potential in the lp-state is somehow smaller than the depth in the ls-state, while the range of the potential is slightly longer.