Author:
Pogliano Francesco,Larsen Ann-Cecilie,Bello Garrote Frank Leonel,Møller Bjørøen Marianne,Kvalheim Eriksen Thomas,Gjestvang Dorthea,Görgen Andreas,Guttormsen Magne,Li Kevin Ching Wei,Markova Maria,Matthews Eric Francis,Paulsen Wanja,Gaard Pedersen Line,Siem Sunniva,Storebakken Tellef,Gabor Tornyi Tamás,Ersland Vevik Julian
Abstract
Sensitivity studies of the i process have identified the region around 135I as a bottleneck for the neutron capture flow. Nuclear properties such as the Maxwellian-averaged cross section (MACS) are key to constrain the uncertainties in the final abundance patterns. From the 124Sn(α, pγ)127Sb reaction we are able to indirectly measure the nuclear level density and γ-ray strength function for 127Sb using the Oslo method. From these two quantities we can calculate the MACS for the 126Sb(n, γ)127Sb reaction using the Hauser-Feshbach formalism, constrain its uncertainties and compare it to libraries such as JINA REACLIB, TENDL and BRUSLIB.