@Article{Lorusso+Montaner-Piza2015, author="Lorusso, G. et al and Montaner-Piza, A.", title="beta-Decay Half-Lives of 110 Neutron-Rich Nuclei across the N=82 Shell Gap: Implications for the Mechanism and Universality of the Astrophysical r Process", journal="Physical Review Letters", year="2015", publisher="Amer Physical Soc", volume="114", number="19", pages="192501--7pp", abstract="The beta-decay half-lives of 110 neutron-rich isotopes of the elements from 37 Rb to 50 Sn were measured at the Radioactive Isotope Beam Factory. The 40 new half-lives follow robust systematics and highlight the persistence of shell effects. The new data have direct implications for r-process calculations and reinforce the notion that the second (A approximate to 130) and the rare-earth-element (A approximate to 160) abundance peaks may result from the freeze-out of an (n, gamma) reversible arrow (gamma, n) equilibrium. In such an equilibrium, the new half-lives are important factors determining the abundance of rare-earth elements, and allow for a more reliable discussion of the r process universality. It is anticipated that universality may not extend to the elements Sn, Sb, I, and Cs, making the detection of these elements in metal-poor stars of the utmost importance to determine the exact conditions of individual r-process events.", optnote="WOS:000354347300001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2224), last updated on Fri, 29 May 2015 17:22:34 +0000", issn="0031-9007", doi="10.1103/PhysRevLett.114.192501", opturl="https://doi.org/10.1103/PhysRevLett.114.192501", language="English" }