https://doi.org/10.1051/epjconf/201611306008
Pairing and quartetting in medium mass nuclei
1 Institut de Physique Nucléaire, Université Paris-Sud-11 - CNRS/IN2P3, 91406 Orsay, France
2 CSNSM, Université Paris-Sud-11 CNRS/IN2P3, 91405 Orsay-Campus, France
a e-mail: assie@ipno.in2p3.fr
Published online: 25 March 2016
Pairing and quartetting are competing phenomena in nuclei. In the selfconjugate nuclei from the fp-shell, the competition between T=0 pairing (deuteron-like) and alpha clusterisation is predicted to be a_ected by the spin-orbit interaction. In order to probe the α structure of fp-shell nuclei, the nuclear break-up of 40Ca and 40Ar has been measured at GANIL. The α spectroscopic factors obtained for the N=Z nucleus and the N≠Z nuclei do not reflect any difference. This might be an indication that the tail of the wave function in not sensitive to nuclear asymmetry. Perspectives for probing the deuteron-like pairing (T=0) are given.
© Owned by the authors, published by EDP Sciences, 2016
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