The double isovector giant-dipolar state has been observed in the (π+ ,π-) ΔTz=+2 and (π+ ,π-) ΔTz=-2 double-charge-exchange reactions on 40Ca and 27Al. The resonances observed in the reaction are closely related via Coulomb energy and isospin symmetry to the resonances measured in the inverse (π+ ,π-) reaction on the same nuclei. The new observations provide strong support for the identification of the double giant-dipole state in nuclei. The differences between the self-conjugate and non-self-conjugate cases are outlined.
|Journal||Physical Review C - Nuclear Physics|
|State||Published - 1 Jan 1991|
ASJC Scopus subject areas
- Nuclear and High Energy Physics