Isovector quadrupole resonance observed in the 60Ni(13C,13N)60Co reaction at E/A=100 MeV

T Ichihara; M Ishihara; H Ohnuma; T Niizeki; Y Satou; H Okamura; S Kubono; M H Tanaka; Y Fuchi

doi:10.1103/PhysRevLett.89.142501

Isovector quadrupole resonance observed in the 60Ni(13C,13N)60Co reaction at E/A=100 MeV

Phys Rev Lett. 2002 Sep 30;89(14):142501. doi: 10.1103/PhysRevLett.89.142501. Epub 2002 Sep 11.

Authors

T Ichihara¹, M Ishihara, H Ohnuma, T Niizeki, Y Satou, H Okamura, S Kubono, M H Tanaka, Y Fuchi

Affiliation

¹ RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. ichihara@riken.go.jp

PMID: 12366037
DOI: 10.1103/PhysRevLett.89.142501

Abstract

The charge-exchange reaction 60Ni(13C,13N)60Co at E/A=100 MeV has been studied to locate isovector (deltaT=1) non-spin-flip (deltaS=0) giant resonances. Besides the giant dipole resonance at E(x)=8.7 MeV, another resonance has been observed at E(x)=20 MeV with a width of 9 MeV. Distorted-wave Born approximation analysis on the angular distribution clearly indicated the L=2 multipolarity, attributing the E(x)=20 MeV state to the giant isovector quadrupole resonance.