Study of spin dipole strength in ^12N via complete polarization transfer measurements
Abstract
Spin-isospin excitations in nuclei have been studied intensively in the past decades. While Gamow-Teller (δS=1, δT=1, δL=0) excitaitons have been investigated exhaustively, the understanding of spin dipole (SD) (δS=1, δT=1, δL=1) excitations is still rather limited with respect to the three different spin-parity states of J^π=0^-, 1^-, 2^-. The strength distribution of each SD state gives us fundamental information on the tensor correlations. In order to deduce the SD strength distributions in ^12N, we have measured cross sections and complete sets of polarization transfer observables for ^12C(p,n) reaction. The measured polarization transfer observables are used to separate cross section into spin-longitudinal IDq and spin-transverse IDp polarized cross sections. These polaried cross sections enable us to separate the SD components into each J^π. In this talk, we will report on the obtained SD strength distributions.
- Publication:
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APS Meeting Abstracts
- Pub Date:
- October 2009
- Bibcode:
- 2009APS..HAW.BL002D