The study of neutron-rich nuclei production in the region of the closed shell ${N}=126$ in the multi-nucleon transfer reaction $^{136}\mathrm{Xe}$+$^{208}\mathrm{ Pb}$
| Pub type: | Inproceedings |
| Citation: | 1742-6596-703-1-012020 |
| Status: | Published |
| Journal: | Journal of Physics: Conference Series |
| Booktitle: | 8th European Summer School on Experimental Nuclear Astrophysics (Santa Tecla School) |
| Volume: | 703 |
| Number: | 1 |
| Year: | 2016 |
| Month: | April |
| Pages: | 012020 |
| Location: | Santa Tecla, Italy |
| Note: | 13–20 September 2015 |
| URL: | http://stacks.iop.org/1742-659... |
| DOI: | 10.1088/1742-6596/703/1/012020 |
| Abstract: | The unexplored area of heavy neutron rich nuclei is extremely important for nuclear astrophysics investigations and, in particular, for the understanding of the r-process of astrophysical nucleogenesis. For the production of heavy neutron rich nuclei located along the neutron closed shell N=126 (probably the last "waiting point" in the r-process of nucleosynthesis) the low-energy multi-nucleon transfer reaction 136 Xe+ 208 Pb at E lab =870MeV was explored. Due to the stabilizing effect of the closed neutron shells in both nuclei, N=82 and N=126, and the rather favorable proton transfer from lead to xenon, the light fragments formed in this process are well bound and the Q-value of the reaction is nearly zero. Measurements were performed with the PRISMA spectrometer in coincidence with an additional time-of-flight (ToF) arm on the +20 beam line of the PIAVE-ALPI accelerator in Legnaro, Italy. The PRISMA spectrometer allows identification of the A, Z and velocity of the projectile-like fragments (PLF), while the second arm gives access to the target-like fragments (TLF). Details on the experimental setup and preliminary results are reported. |
| Month_val: | 4 |
| Authors: | |
| Added by: | [DGM] |
| Total mark: | 0 |
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