Production of n-rich Nuclei along the Closed Shell N=126 in the collision 136Xe + 208Pb @E lab =870 MeV
Quero, D., Vardaci, E., Kozulin, E. M., Zagrebaev, V. A., Corradi, L., Pulcini, A., . . . Trzaska, W. (2018). Production of n-rich Nuclei along the Closed Shell N=126 in the collision 136Xe + 208Pb @E lab =870 MeV. In G. Mandaglio, A. Trifirò, & M. Trimarchi (Eds.), NRNN 2017 : International Workshop “Nuclear Reactions on Nucleons and Nuclei” (pp. 012015). Journal of Physics : Conference Series, 1014. IOP Publishing. doi:10.1088/1742-6596/1014/1/012015
Published inJournal of Physics : Conference Series
© Authors 2018.
Multi-nucleon transfer reactions are nowadays the only known mean to produce neutron-rich nuclei in the Terra Incognita. The closed-shell region N=126 is crucial for both studying shell-quenching in exotic nuclei and the r-process, being its last "waiting-point". The choice of suitable reactions is challenging and a favorable case is 136Xe+208Pb, near the Coulomb barrier, because their neutron shell-closures play a stabilizing role, favoring the proton-transfer from lead to xenon. TOF-TOF data were analyzed to reconstruct the mass-energy distribution of the primary fragments. Preliminary results of an experiment held at Laboratori Nazionali di Legnaro with PRISMA, aimed at A and Z identification of the products, will be shown.