First 80Se(n,γ) cross section measurement with high resolution in the full stellar energy range 1 eV - 100 keV and its astrophysical implications for the s-process

The n-TOF Collaboration

doi:10.1051/epjconf/202226011026

First ⁸⁰Se(n,γ) cross section measurement with high resolution in the full stellar energy range 1 eV - 100 keV and its astrophysical implications for the s-process

The n-TOF Collaboration

Research output: Contribution to conference › Paper › peer-review

Abstract

Most elements heavier than iron have been generated in the stellar media by means of neutron capture reactions, approximately half are produced by the slow neutron capture or s-process. Radiative neutron capture cross section measurements are of fundamental importance for the study of this mechanism. In this contribution we present a brief summary on the measurement and results for the ⁸⁰Se(n,γ) cross-section. The experiment was carried out at CERN n_TOF EAR1 via the time of flight (ToF) technique, using four C₆D₆ scintillation detectors with very fast response. More than a hundred new resonances have been analyzed for the first time with a high accuracy. The MACS obtained at kT = 8 keV is 36% smaller than the recommended value in KADoNiS. Some of the astrophysical implications of this result are elucidated in this contribution.

Original language	English
Number of pages	8
DOIs	https://doi.org/10.1051/epjconf/202226011026
Publication status	Published - 24 Feb 2022
Event	16th Symposium on Nuclei in the Cosmos, NIC-XVI 2021 - Chengdu, China Duration: 21 Sept 2021 → 25 Sept 2021

Conference

Conference	16th Symposium on Nuclei in the Cosmos, NIC-XVI 2021
Country/Territory	China
City	Chengdu
Period	21/09/21 → 25/09/21

Bibliographical note

Publisher Copyright:
© The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).

Access to Document

10.1051/epjconf/202226011026Licence: CC BY

Cite this

@conference{a5e72da6ee934e2ca37be5ea06e8eb9a,

title = "First 80Se(n,γ) cross section measurement with high resolution in the full stellar energy range 1 eV - 100 keV and its astrophysical implications for the s-process",

abstract = "Most elements heavier than iron have been generated in the stellar media by means of neutron capture reactions, approximately half are produced by the slow neutron capture or s-process. Radiative neutron capture cross section measurements are of fundamental importance for the study of this mechanism. In this contribution we present a brief summary on the measurement and results for the 80Se(n,γ) cross-section. The experiment was carried out at CERN n_TOF EAR1 via the time of flight (ToF) technique, using four C6D6 scintillation detectors with very fast response. More than a hundred new resonances have been analyzed for the first time with a high accuracy. The MACS obtained at kT = 8 keV is 36% smaller than the recommended value in KADoNiS. Some of the astrophysical implications of this result are elucidated in this contribution.",

author = "{The n-TOF Collaboration} and V. Babiano-Suarez and J. Balibrea-Correa and L. Caballero-Ontanaya and C. Domingo-Pardo and I. Ladarescu and J. Lerendegui-Marco and Tain, {J. L.} and F. Calvi{\~n}o and A. Casanovas and A. Tarife{\~n}o-Saldivia and C. Guerrero and O. Aberle and V. Alcayne and S. Amaducci and J. Andrzejewski and L. Audouin and M. Bacak and M. Barbagallo and S. Bennett and E. Berthoumieux and J. Billowes and D. Bosnar and A. Brown and M. Busso and M. Caama{\~n}o and M. Calviani and D. Cano-Ott and F. Cerutti and E. Chiaveri and N. Colonna and G. Cort{\'e}s and Cort{\'e}s-Giraldo, {M. A.} and L. Cosentino and S. Cristallo and Damone, {L. A.} and Davies, {P. J.} and M. Diakaki and M. Dietz and R. Dressler and Q. Ducasse and E. Dupont and I. Dur{\'a}n and Z. Eleme and B. Fern{\'a}ndez-Dom{\'i}nguez and A. Ferrari and P. Finocchiaro and V. Furman and R. Garg and Jenkins, {D. G.} and T. Wright",

note = "Publisher Copyright: {\textcopyright} The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).; 16th Symposium on Nuclei in the Cosmos, NIC-XVI 2021 ; Conference date: 21-09-2021 Through 25-09-2021",

year = "2022",

month = feb,

day = "24",

doi = "10.1051/epjconf/202226011026",

language = "English",

}

TY - CONF

T1 - First 80Se(n,γ) cross section measurement with high resolution in the full stellar energy range 1 eV - 100 keV and its astrophysical implications for the s-process

AU - The n-TOF Collaboration

AU - Babiano-Suarez, V.

AU - Balibrea-Correa, J.

AU - Caballero-Ontanaya, L.

AU - Domingo-Pardo, C.

AU - Ladarescu, I.

AU - Lerendegui-Marco, J.

AU - Tain, J. L.

AU - Calviño, F.

AU - Casanovas, A.

AU - Tarifeño-Saldivia, A.

AU - Guerrero, C.

AU - Aberle, O.

AU - Alcayne, V.

AU - Amaducci, S.

AU - Andrzejewski, J.

AU - Audouin, L.

AU - Bacak, M.

AU - Barbagallo, M.

AU - Bennett, S.

AU - Berthoumieux, E.

AU - Billowes, J.

AU - Bosnar, D.

AU - Brown, A.

AU - Busso, M.

AU - Caamaño, M.

AU - Calviani, M.

AU - Cano-Ott, D.

AU - Cerutti, F.

AU - Chiaveri, E.

AU - Colonna, N.

AU - Cortés, G.

AU - Cortés-Giraldo, M. A.

AU - Cosentino, L.

AU - Cristallo, S.

AU - Damone, L. A.

AU - Davies, P. J.

AU - Diakaki, M.

AU - Dietz, M.

AU - Dressler, R.

AU - Ducasse, Q.

AU - Dupont, E.

AU - Durán, I.

AU - Eleme, Z.

AU - Fernández-Domínguez, B.

AU - Ferrari, A.

AU - Finocchiaro, P.

AU - Furman, V.

AU - Garg, R.

AU - Jenkins, D. G.

AU - Wright, T.

N1 - Publisher Copyright: © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).

PY - 2022/2/24

Y1 - 2022/2/24

N2 - Most elements heavier than iron have been generated in the stellar media by means of neutron capture reactions, approximately half are produced by the slow neutron capture or s-process. Radiative neutron capture cross section measurements are of fundamental importance for the study of this mechanism. In this contribution we present a brief summary on the measurement and results for the 80Se(n,γ) cross-section. The experiment was carried out at CERN n_TOF EAR1 via the time of flight (ToF) technique, using four C6D6 scintillation detectors with very fast response. More than a hundred new resonances have been analyzed for the first time with a high accuracy. The MACS obtained at kT = 8 keV is 36% smaller than the recommended value in KADoNiS. Some of the astrophysical implications of this result are elucidated in this contribution.

AB - Most elements heavier than iron have been generated in the stellar media by means of neutron capture reactions, approximately half are produced by the slow neutron capture or s-process. Radiative neutron capture cross section measurements are of fundamental importance for the study of this mechanism. In this contribution we present a brief summary on the measurement and results for the 80Se(n,γ) cross-section. The experiment was carried out at CERN n_TOF EAR1 via the time of flight (ToF) technique, using four C6D6 scintillation detectors with very fast response. More than a hundred new resonances have been analyzed for the first time with a high accuracy. The MACS obtained at kT = 8 keV is 36% smaller than the recommended value in KADoNiS. Some of the astrophysical implications of this result are elucidated in this contribution.

UR - http://www.scopus.com/inward/record.url?scp=85183859959&partnerID=8YFLogxK

U2 - 10.1051/epjconf/202226011026

DO - 10.1051/epjconf/202226011026

M3 - Paper

AN - SCOPUS:85183859959

T2 - 16th Symposium on Nuclei in the Cosmos, NIC-XVI 2021

Y2 - 21 September 2021 through 25 September 2021

ER -