Neutron rich Carbon and Oxygen isotopes with an odd number of neutrons

2013/04/02 by Benoit Laurent, Laurent, Benoit, Nicole Vinh Mau +1
Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #nucl-th

paper · pdf · doi:10.48550/arxiv.1304.0561

submitted to EPJA

arxiv created 2013/04/02 · arxiv updated 2013/04/03

Abstract

We describe odd isotopes as formed of a core plus one neutron. We have calculated the modification of single neutron energies brought by couplings of the neutron with collective 2⁺ phonons in the cores. The results reproduce very well the inversion of 2s and 1d_5/2 shells in carbon isotopes up to ¹⁹C while in oxygen isotopes the correction is also large but do not show any inversion in agreement with experiments. The calculated energies are close to the experimental ones in both series of isotopes except in ²¹C for the 2s state for which our coupling is too weak.

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