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Isotopic yields of neutron-rich nuclei from deep-inelastic reactions
KTH, Superseded Departments, Physics.ORCID iD: 0000-0003-1771-2656
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2000 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 6101, no 1Article in journal (Refereed) Published
Abstract [en]

We follow up on our earlier work involving a light projectile (Ca-48) to populate high spin states in neutron-rich nuclei with results from experiments involving a heavier projectile (Sm-154) fur the purposes of studying isotopic yields. These yields, which in some cases were mensurable down to a level of 0.1 of the total reaction cross section, are presented from three separate reactions. A trend in the isotopic yields towards N/Z equilibration is observed in one experiment having a large disparity in N/Z ratios between the projectile and target. In the two other reactions, where the N/Z driving force is less pronounced, the yields are instead clustered around the projectile and target nuclei. We present correlated projectilelike and targetlike fragment isotopic yields derived from gamma-gamma coincidences, a technique that enables one to partition the yield of an isotope according to the amount of neutron evaporation. Using this method we find that for the zero-neutron evaporation channel transfer occurs predominantly into the light fragment, consistent with the nature of the deep-inelastic mechanism. We further find that multiple-neutron evaporation contributes substantially to the yields of the isotopes.

Place, publisher, year, edition, pages
2000. Vol. 6101, no 1
Keyword [en]
collisions, equilibration, population, states
URN: urn:nbn:se:kth:diva-19489ISI: 000084778800025OAI: diva2:338181
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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