English

States of $^{12}$N with enhanced radii

Nuclear Experiment 2020-05-20 v1 Nuclear Theory

Abstract

The differential cross sections of the 12^{12}C(3^3He,t)12^{12}N reaction leading to formation of the 1+^+ (ground state), 2+^+(0.96 MeV), 2^{-}(1.19 MeV), and 1^{-}(1.80 MeV) states of 12^{12}N are measured at EE(3^3He)=40 MeV. The analysis of the data is carried out within the modified diffraction model (MDM) and distorted wave Born approximation (DWBA). Enhanced rmsrms radii were obtained for the ground, 2^{-}(1.19 MeV), and 1^{-}(1.80 MeV) states. We revealed that 12^{12}B, 12^{12}N, and 12^{12}C in the IAS with T=1, and spin-parities 2^{-} and 1^{-} have increased radii and exhibit properties of neutron and proton halo states.

Keywords

Cite

@article{arxiv.2003.06570,
  title  = {States of $^{12}$N with enhanced radii},
  author = {A. S. Demyanova and A. N. Danilov and A. A. Ogloblin and V. I. Starastsin and S. V. Dmitriev and W. H. Trzaska and S. A. Goncharov and T. L. Belyaeva and V. A. Maslov and Yu. G. Sobolev and Yu. E. Penionzhkevich and S. V. Khlebnikov and G. P. Tyurin and N. Burtebaev and D. Janseitov and Yu. B. Gurov and J. Louko and V. M. Sergeev},
  journal= {arXiv preprint arXiv:2003.06570},
  year   = {2020}
}

Comments

6 pages, 4 figures, 2 tables