Low-energy isoscalar quadrupole strength in 40Ca and 48Ca from (p, p'x) reactions
Date
2001
Authors
Schweda K.
Carter J.
Cowley A.A.
Diesener H.
Fearick R.W.
Fortsch S.V.
Lawrie J.J.
Von Neumann-Cosel P.
Pilcher J.V.
Richter A.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
A decomposition of giant multipole strength in 40Ca and 48Ca is performed from angular correlations and emission angle-integrated angular distributions of the reactions 40Ca(p,p'α0)36Ar, 40Ca(p,p'p0)39K and 48Ca(p,p'n0)47Ca. The deduced B(E2) strength distributions agree reasonably well in shape and magnitude with the results of electron-induced experiments. Previous suggestions of a systematic discrepancy of the total E2 strengths in the α0 channel derived from hadronic and electromagnetic probes are shown to be unfounded. In 48Ca, for the first time evidence for sizable isoscalar E2 strength at low excitation energies, similar to 40Ca, could be established. © 2001 Elsevier Science B.V.
Description
Keywords
calcium, article, chemical reaction, decomposition, electromagnetic radiation, electron, energy, excitation, reaction analysis, strength
Citation
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
506
04-Mar
506
04-Mar