Persistence of odd-even staggering in charged-fragment yields from Sn-112+Ni-58 collisions at 35 MeV/nucleon

Casini, Giovanni; Piantelli, Silvia; Maurenzig, Paolo; Olmi, Alessandro; Bardelli, Luigi; Barlini, Sandro; Benelli, Matteo; Bini, Maurizio; Calviani, M.; Marini, P.; Mangiarotti, A.; Pasquali, Gabriele; Poggi, Giacomo; Stefanini, Andrea; Bruno, M.; Morelli, L.; Kravchuk, V. L.; Amorini, F.; Auditore, L.; Cardella, G.; Filippo, E. D.; Galichet, E.; Guidara, E. L.; Lanzalone, G.; Lanzano, G.; Maiolino, C.; Pagano, A.; Papa, M.; Pirrone, S.; Politi, G.; Pop, A.; Porto, F.; Rizzo, F.; Russotto, P.; Santonocito, D.; Trifiro, A.; Trimarchi, M.

doi:10.1103/PhysRevC.86.011602

Odd-even staggering effects on charge distributions are investigated for fragments produced in semiperipheral and central collisions of Sn-112 + Ni-58 at 35 MeV/nucleon. For fragments with Z <= 16 one observes a clear overproduction of even charges, which decreases for heavier fragments. Staggering persists up to Z similar to 30. The staggering appears to be substantially independent of the centrality of the collisions, suggesting that it is mainly related to the last few steps in the decay of hot nuclei.

Persistence of odd-even staggering in charged-fragment yields from Sn-112+Ni-58 collisions at 35 MeV/nucleon / G. Casini; S. Piantelli; P. R. Maurenzig; A. Olmi; L. Bardelli; S. Barlini; M. Benelli; M. Bini; M. Calviani; P. Marini; A. Mangiarotti; G. Pasquali; G. Poggi; A. A. Stefanini; M. Bruno; L. Morelli; V. L. Kravchuk; F. Amorini; L. Auditore; G. Cardella; E. D. Filippo; E. Galichet; E. L. Guidara; G. Lanzalone; G. Lanzano; C. Maiolino; A. Pagano; M. Papa; S. Pirrone; G. Politi; A. Pop; F. Porto; F. Rizzo; P. Russotto; D. Santonocito; A. Trifiro; M. Trimarchi. - In: PHYSICAL REVIEW. C, NUCLEAR PHYSICS. - ISSN 0556-2813. - STAMPA. - 86:(2012), pp. 011602-1-011602-5. [10.1103/PhysRevC.86.011602]