Unveiling pairing anti-halo effect in odd-even staggering in reaction cross sections of weakly bound nuclei

Details Unveiling pairing anti-halo effect in odd-even staggering in reaction cross sections of weakly bound nuclei Unveiling pairing anti-halo effect in odd-even staggering in reaction cross sections of weakly bound nuclei

2011-05-27

arxiv.org/abs/1105.5469v1

Physics

Nuclear Physics

Nuclear Theory

5 pages, 4 eps figures

Scientific paper

We investigate the spatial extension of weakly bound Ne and C isotopes by taking into account the pairing correlation with the Hartree-Fock-Bogoliubov (HFB) method and a 3-body model, respectively. We show that the odd-even staggering in the reaction cross sections of $^{30,31,32}$Ne and $^{14,15,16}$C are successfully reproduced, and thus the staggering can be attributed to the pairing anti-halo effect. A correlation between a one-neutron separation energy and the anti-halo effect is demonstrated for $s$- and p-waves using the HFB wave functions.

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