| Issue |
EPJ Web Conf.
Volume 184, 2018
9th European Summer School on Experimental Nuclear Astrophysics
|
|
|---|---|---|
| Article Number | 02004 | |
| Number of page(s) | 5 | |
| Section | Session 2 | |
| DOI | https://doi.org/10.1051/epjconf/201818402004 | |
| Published online | 29 June 2018 | |
https://doi.org/10.1051/epjconf/201818402004
7Be(n,p) cross section measurement for the Cosmological Lithium Problem at the n_TOF facility at CERN
1
INFN,
bari
2
CERN
3
University of Lodz, Poland
4
INFN Laboratori Nazionali del Sud,
catania, Italy
* e-mail: lucia.damone@ba.infn.it
Published online: 29 June 2018
One of the most puzzling problems in Nuclear Astrophysics is the "Cosmological Lithium Problem", i.e the discrepancy between the primordial abundance of 7Li observed in metal poor halo stars [1], and the one predicted by Big Bang Nucleosynthesis (BBN). One of the reactions that could have an impact on the problem is 7Be(n,p)7Li. Despite of the importance of this reaction in BBN, the cross-section has never been directly measured at the energies of interest for BBN. Taking advantage of the innovative features of the second experimental area at the n_TOF facility at CERN, an accurate measurement of 7Be(n,p) cross section has been recently performed at n_TOF, with a pure 7Be target produced by implantation of a 7Be beam at ISOLDE. The experimental procedure, the setup used in the measurement and the results obtained so far will be here presented.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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