https://doi.org/10.1140/epja/i2016-16209-8
Regular Article - Theoretical Physics
Electric multipole response of the halo nucleus 6He
1
Dipartimento di Fisica e Astronomia “G. Galilei”, via Marzolo 8, I-35131, Padova, Italy
2
Sezione di Padova, INFN, via Marzolo 8, I-35131, Padova, Italy
3
Department of Physics, Indian Institute of Technology, 247 667, Roorkee, India
* e-mail: jsingh@pd.infn.it
Received:
12
April
2016
Accepted:
3
July
2016
Published online:
28
July
2016
The role of different continuum components in the weakly bound nucleus 6 He is studied by coupling unbound spd -waves of 5 He by means of simple pairing contact-delta interaction. The results of our previous investigations in a model space containing only p -waves showed the collective nature of the ground state and allowed the calculation of the electric quadrupole transitions. We extend this simple model by including also sd -continuum neutron states and we investigate the electric monopole, dipole and octupole response of the system for transitions to the continuum, discussing the contribution of different configurations.
© SIF, Springer-Verlag Berlin Heidelberg, 2016
