EPJ Web Conf.
Volume 275, 202311ᵗʰ European Summer School on Experimental Nuclear Astrophysics
|Number of page(s)
|Session 2: Contribution by Young Researchers
|03 February 2023
Indirect measurement of the (n,γ)127Sb cross section
1 Department of Physics, University of Oslo, N-0316 Oslo, Norway
2 Department of Nuclear Engineering, University of California, Berkeley, California 94720 U.S.A.
Published online: 3 February 2023
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.
© The Authors, published by EDP Sciences, 2023
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