Projectile structure effects in multi-nucleon and cluster transfers in^16,18O+¹⁶⁴Dy,²⁰⁸Pb reactions

Abstract

Abstract:The yield of projectile like fragments (PLFs) has been measured in the reactions of 16,18 O with 164 Dy and 208 Pb targets at energies above the Coulomb barrier. The experimental data are analyzed to ascertain the role of projectile structure on the multinucleon and cluster correlations in transfer reactions. The variation of transfer probability with the number of nucleons transferred from the projectile to the target nucleus at the grazing angle has been investigated for both the systems. In the case of O nucleus on multi-particle transfer reactions.

Multinucleon transfer inO16,18,F19+Rafferty1, Dasgupta2, Hinde3 et al. 2016Phys. Rev. C352160View full textAdd to dashboardCite

“…1p stripping is comparatively weak in this reaction, with the 1p2n transfer mass partition the most intense of the Z = −1 modes at all separations. Similar behavior in 18 O has been reported elsewhere [42], and was interpreted as being due to a correlated transfer of the three nucleons. However, as the internuclear separation is increased, this effect appears to be diminished, with the −1p2n channel nearing equivalence to proton transfer at the lowest energy measured here.…”

“…The probability for 2n transfer is comparable to that of 1n neutron transfer. This behavior has been observed previously in several reactions involving 18 O [41,42], and is thought to be due to the valence dineutron configuration in this nucleus, where the two neutrons outside the closed shell are weakly bound and easily removed. It is likely that the −2n transfer is underestimated here, as it is difficult to separate the 16 O yield arising from groundstate transfer from elastic scattering events, as there is some overlap in the E-E Si spectrum.…”

Probing quantum many-body dynamics in nuclear systems

“…Let us now consider (multi-)nucleon transfer. This field has attracted much experimental work in the recent past, in particular to infer the competition between sequential and cluster transfer with stable [71][72][73][74][75] and exotic beams [76][77][78][79].…”