Measurement of nuclear level density of <math xmlns="http://www.w3.org/1998/Math/MathML"><mmultiscripts><mi>Fe</mi><mprescripts></mprescripts><none></none><mn>59</mn></mmultiscripts></math> relevant for neutron-capture cross sections

Payal Taya; S. Santra; P. C. Rout; M. Meher; A. Pal; A. Baishya; H. Kumawat; T. Santhosh; Tanya Singh; Ramandeep Gandhi; G. Mohanto; Jyotisankar Das; R. Palit

doi:10.1103/qzmf-1g4j

Measurement of nuclear level density of ${}^{59}{Fe}$ relevant for neutron-capture cross sections

Payal Taya ^1,2,*, S. Santra ^1,2,†, P. C. Rout ^1,2, M. Meher ^1,2, A. Pal ^1,2, A. Baishya ^1,2, H. Kumawat ^1,2, T. Santhosh ^1,‡, Tanya Singh ^1,2 et al.

Ramandeep Gandhi ^1,2,§, G. Mohanto ^2,3, Jyotisankar Das ⁴, and R. Palit⁵

¹Nuclear Astrophysics Section, Bhabha Atomic Research Centre, Mumbai -400085, India
²Homi Bhabha National Institute, Anushaktinagar, Mumbai -400094, India
³Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai -400085, India
⁴Department of Physics, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam -515134, India
⁵Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Colaba, Mumbai -400005, India

^*Contact author: tayap@barc.gov.in
^†Contact author: ssantra@barc.gov.in
^‡Present address: Tata Institute for Fundamental Research, Colaba, Mumbai -400005, India.
^§Present address: Semiconductor Lasers and Devices Division, Raja Ramanna Centre for Advanced Technology, Indore 452013, India.

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Phys. Rev. C 114, 014634 – Published 28 July, 2026

DOI: https://doi.org/10.1103/qzmf-1g4j

Abstract

The proton evaporation spectrum has been measured in an exclusive experiment for ${}^{60}{Co}$ , which is populated in the ${}^{57}{Fe}$ ( ${}^{7}{Li}, α$ ) reaction and decays into ${}^{59}{Fe} + p$ . A statistical-model analysis of the coincident proton spectra enabled the extraction of the excitation-energy-dependent nuclear level density (NLD) of ${}^{59}{Fe}$ . The extracted NLD shows good consistency with available microscopic predictions and the RIPL-3 evaluated data, thereby providing an important experimental benchmark for this short-lived nucleus. It was further used to estimate the Maxwellian-averaged neutron-capture cross section relevant for astrophysical reaction rates, particularly for the ${}^{58}{Fe}$ nucleus.

Physical Review C

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Measurement of nuclear level density of ${}^{59}{Fe}$ relevant for neutron-capture cross sections

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Measurement of nuclear level density of Fe59 relevant for neutron-capture cross sections

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Measurement of nuclear level density of ${}^{59}{Fe}$ relevant for neutron-capture cross sections