Measurement of the Se 77 (n,γ) cross section up to 200 keV at the n_TOF facility at CERN

n_TOF Collaboration

doi:10.1103/PhysRevC.107.065805

Measurement of the Se 77 (n,γ) cross section up to 200 keV at the n_TOF facility at CERN

n_TOF Collaboration

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Abstract

The Se77(n,γ) reaction is of importance for Se77 abundance during the slow neutron capture process in massive stars. We have performed a new measurement of the Se77 radiative neutron capture cross section at the Neutron Time-of-Flight facility at CERN. Resonance capture kernels were derived up to 51 keV and cross sections up to 200 keV. Maxwellian-averaged cross sections were calculated for stellar temperatures between kT=5keV and kT=100keV, with uncertainties between 4.2% and 5.7%. Our results lead to substantial decreases of 14% and 19% in Se77 abundances produced through the slow neutron capture process in selected stellar models of 15M⊙ and 2M⊙, respectively, compared to using previous recommendation of the cross section.

Original language	English
Article number	065805
Number of pages	9
Journal	Physical Review C (nuclear physics)
Volume	107
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.107.065805
Publication status	Published - 12 Jun 2023

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© 2023 Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. https://creativecommons.org/licenses/by/4.0/
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@article{1078ef88863740bfb3894f2e36997b8b,

title = "Measurement of the Se 77 (n,γ) cross section up to 200 keV at the n\_TOF facility at CERN",

abstract = "The Se77(n,γ) reaction is of importance for Se77 abundance during the slow neutron capture process in massive stars. We have performed a new measurement of the Se77 radiative neutron capture cross section at the Neutron Time-of-Flight facility at CERN. Resonance capture kernels were derived up to 51 keV and cross sections up to 200 keV. Maxwellian-averaged cross sections were calculated for stellar temperatures between kT=5keV and kT=100keV, with uncertainties between 4.2\% and 5.7\%. Our results lead to substantial decreases of 14\% and 19\% in Se77 abundances produced through the slow neutron capture process in selected stellar models of 15M⊙ and 2M⊙, respectively, compared to using previous recommendation of the cross section.",

author = "\{n\_TOF Collaboration\} and Sosnin, \{N. V.\} and C. Lederer-Woods and M. Krti{\v c}ka and R. Garg and M. Dietz and M. Bacak and M. Barbagallo and U. Battino and S. Cristallo and Damone, \{L. A.\} and M. Diakaki and S. Heinitz and D. Macina and M. Mastromarco and F. Mingrone and Murphy, \{A. St J.\} and G. Tagliente and S. Valenta and D. Vescovi and O. Aberle and V. Alcayne and S. Amaducci and J. Andrzejewski and L. Audouin and V. B{\'e}cares and V. Babiano-Suarez and F. Be{\v c}v{\'a}{\v r} and G. Bellia and E. Berthoumieux and J. Billowes and D. Bosnar and A. Brown and M. Busso and M. Caama{\~n}o and L. Caballero and F. Calvi{\~n}o and M. Calviani and D. Cano-Ott and A. Casanovas and F. Cerutti and Chen, \{Y. H.\} and E. Chiaveri and N. Colonna and G. Cort{\'e}s and Cort{\'e}s-Giraldo, \{M. A.\} and L. Cosentino and C. Domingo-Pardo and R. Dressler and E. Dupont and T. Rauscher",

note = "{\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. https://creativecommons.org/licenses/by/4.0/",

year = "2023",

month = jun,

day = "12",

doi = "10.1103/PhysRevC.107.065805",

language = "English",

volume = "107",

journal = "Physical Review C (nuclear physics)",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Measurement of the Se 77 (n,γ) cross section up to 200 keV at the n_TOF facility at CERN

AU - n_TOF Collaboration

AU - Sosnin, N. V.

AU - Lederer-Woods, C.

AU - Krtička, M.

AU - Garg, R.

AU - Dietz, M.

AU - Bacak, M.

AU - Barbagallo, M.

AU - Battino, U.

AU - Cristallo, S.

AU - Damone, L. A.

AU - Diakaki, M.

AU - Heinitz, S.

AU - Macina, D.

AU - Mastromarco, M.

AU - Mingrone, F.

AU - Murphy, A. St J.

AU - Tagliente, G.

AU - Valenta, S.

AU - Vescovi, D.

AU - Aberle, O.

AU - Alcayne, V.

AU - Amaducci, S.

AU - Andrzejewski, J.

AU - Audouin, L.

AU - Bécares, V.

AU - Babiano-Suarez, V.

AU - Bečvář, F.

AU - Bellia, G.

AU - Berthoumieux, E.

AU - Billowes, J.

AU - Bosnar, D.

AU - Brown, A.

AU - Busso, M.

AU - Caamaño, M.

AU - Caballero, L.

AU - Calviño, F.

AU - Calviani, M.

AU - Cano-Ott, D.

AU - Casanovas, A.

AU - Cerutti, F.

AU - Chen, Y. H.

AU - Chiaveri, E.

AU - Colonna, N.

AU - Cortés, G.

AU - Cortés-Giraldo, M. A.

AU - Cosentino, L.

AU - Domingo-Pardo, C.

AU - Dressler, R.

AU - Dupont, E.

AU - Rauscher, T.

N1 - © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. https://creativecommons.org/licenses/by/4.0/

PY - 2023/6/12

Y1 - 2023/6/12

N2 - The Se77(n,γ) reaction is of importance for Se77 abundance during the slow neutron capture process in massive stars. We have performed a new measurement of the Se77 radiative neutron capture cross section at the Neutron Time-of-Flight facility at CERN. Resonance capture kernels were derived up to 51 keV and cross sections up to 200 keV. Maxwellian-averaged cross sections were calculated for stellar temperatures between kT=5keV and kT=100keV, with uncertainties between 4.2% and 5.7%. Our results lead to substantial decreases of 14% and 19% in Se77 abundances produced through the slow neutron capture process in selected stellar models of 15M⊙ and 2M⊙, respectively, compared to using previous recommendation of the cross section.

AB - The Se77(n,γ) reaction is of importance for Se77 abundance during the slow neutron capture process in massive stars. We have performed a new measurement of the Se77 radiative neutron capture cross section at the Neutron Time-of-Flight facility at CERN. Resonance capture kernels were derived up to 51 keV and cross sections up to 200 keV. Maxwellian-averaged cross sections were calculated for stellar temperatures between kT=5keV and kT=100keV, with uncertainties between 4.2% and 5.7%. Our results lead to substantial decreases of 14% and 19% in Se77 abundances produced through the slow neutron capture process in selected stellar models of 15M⊙ and 2M⊙, respectively, compared to using previous recommendation of the cross section.

UR - https://www.scopus.com/pages/publications/85163799950

U2 - 10.1103/PhysRevC.107.065805

DO - 10.1103/PhysRevC.107.065805

M3 - Article

AN - SCOPUS:85163799950

SN - 2469-9985

VL - 107

JO - Physical Review C (nuclear physics)

JF - Physical Review C (nuclear physics)

IS - 6

M1 - 065805

ER -

Measurement of the Se 77 (n,γ) cross section up to 200 keV at the n_TOF facility at CERN

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