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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

Indirect measurement of the (n, γ)127Sb cross section

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  • Medientyp: E-Artikel
  • Titel: Indirect measurement of the (n, γ)127Sb cross section
  • Beteiligte: 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
  • Erschienen: EDP Sciences, 2023
  • Erschienen in: EPJ Web of Conferences
  • Sprache: Nicht zu entscheiden
  • DOI: 10.1051/epjconf/202327911010
  • ISSN: 2100-014X
  • Schlagwörter: General Earth and Planetary Sciences ; General Engineering ; General Environmental Science
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:p>Sensitivity studies of the <jats:italic>i</jats:italic> process have identified the region around <jats:sup>135</jats:sup>I 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. With the Oslo method, we are able to indirectly measure such properties for the nuclei involved in this process. From the <jats:sup>124</jats:sup>Sn(<jats:italic>α</jats:italic>, <jats:italic>p</jats:italic>γ)<jats:sup>127</jats:sup>Sb reaction data we extract the nuclear level density and <jats:italic>γ</jats:italic>-ray strength function for <jats:sup>127</jats:sup>Sb. The level density at higher excitation energies is compatible with the constant-temperature model, while the <jats:italic>γ</jats:italic>-ray strength function presents features like an upbend and a pygmy-like structure below <jats:italic>S</jats:italic> <jats:sub>n</jats:sub>. From these two quantities we can calculate the MACS for the <jats:sup>126</jats:sup>Sb(<jats:italic>n</jats:italic>, <jats:italic>γ</jats:italic>)<jats:sup>127</jats:sup>Sb reaction using the Hauser-Feshbach formalism, and constrain its uncerainties from the theoretical ones. Libraries such as JINA REACLIB, TENDL and BRUSLIB agree well with the experimental results, while ENDF/B-VIII.0 predicts a higher rate.</jats:p>
  • Zugangsstatus: Freier Zugang