Measurement of the ⁷⁸Se(n,γ) ⁷⁹Se cross section up to 600 keV at the n_TOF facility at CERN

Sosnin, N. V.; Lederer-Woods, C.; Garg, R.; Battino, U.; Cristallo, S.; Dietz, M.; Heinitz, S.; Krticka, M.; Reifarth, R.; Valenta, S.; Vescovi, D.; Aberle, O.; Alcayne, V.; Amaducci, S.; Andrzejewski, J.; Audouin,  L.; Bécares, V.; Babiano-Suarez, V.; Bacak, Michael; Barbagallo, M.; Bečvář, F.; Bellia, G.; Berthoumieux, E.; Billowes, J.; Bosnar, D.; Brown, A.; Busso, M.; Caamaño, M.; Caballero, L.; Calviño, F.; Calviani, M.; Cano-Ott, D.; Casanovas, A.; Cerutti, F.; Chen, Y. H.; Chiaveri, E.; Colonna, N.; Cortés, G.; Cortés-Giraldo, M. A.; Cosentino, L.; Damone, L. A.; Diakaki, M.; Domingo-Pardo, C.; Dressler, R.; Dupont, E.; Durán, I.; Eleme, Z.; Fernández-Domínguez, B.; Ferrari, A.; Finocchiaro, P.; Furman, V.; Göbel, K.; Gawlik-Ramięga, A.; Gilardoni, S.; Glodariu, T.; Gonçalves, I. F.; González-Romero, E.; Guerrero, C.; Gunsing, F.; Harada, H.; Heyse, J.; Jenkins, D. G.; Jericha, Erwin; Käppeler, F.; Kadi, Y.; Kimura, A.; Kivel, N.; Kokkoris, M.; Kopatch, Y.; Kurtulgil, D.; Ladarescu, I.; Leeb, Helmut; Lerendegui-Marco, J.; Lo Meo, S.; Lonsdale, S. J.; Manna, A.; Martínez, T.; Masi, A.; Massimi, C.; Mastinu, P.; Mastromarco, M.; Matteucci, F.; Maugeri, E. A.; Mazzone, A.; Mendoza, E.; Mengoni, A.; Michalopoulou, V.; Milazzo, P. M.; Murphy, A. St. J.; Musumarra, A.; Negret, A.; Nolte, R.; Ogállar, F.; Oprea, A.; Patronis, N.; Pavlik, A.; Perkowski, J.; Piersanti, L.; Porras, I.; Praena, J.; Quesada, J. M.; Radeck, D.; Ramos-Doval, D.; Rauscher, T.; Rochman, D.; Rubbia, C.; Sabaté-Gilarte, M.; Saxena, A.; Schillebeeckx, P.; Schumann, D.; Smith, A. G.; Stamatopoulos, A.; Tagliente, G.; Tain, J.L.; Talip, T.; Tarifeño-Saldivia, A.; Tassan-Got, L.; Torres-Sánchez, P.; Tsinganis, A.; Ulrich, J.; Urlass, S.; Vannini, G.; Variale, V.; Vaz, P.; Ventura, A.; Vlachoudis, V.; Vlastou, R.; Wallner, A.; Woods, P. J.; Wright, T.; Žugec, P.; n_TOF Collaboration

doi:10.1103/PhysRevC.110.065805

Record link:

http://hdl.handle.net/20.500.12708/215134

Title:

Measurement of the ⁷⁸Se(n,γ) ⁷⁹Se cross section up to 600 keV at the n_TOF facility at CERN

Citation:

Sosnin, N. V., Lederer-Woods, C., Garg, R., Battino, U., Cristallo, S., Dietz, M., Heinitz, S., Krticka, M., Reifarth, R., Valenta, S., Vescovi, D., Aberle, O., Alcayne, V., Amaducci, S., Andrzejewski, J., Audouin, L., Bécares, V., Babiano-Suarez, V., Bacak, M., … n_TOF Collaboration. (2024). Measurement of the ⁷⁸Se(n,γ) ⁷⁹Se cross section up to 600 keV at the n_TOF facility at CERN. Physical Review C, 110(6), Article 065805. https://doi.org/10.1103/PhysRevC.110.065805

Publisher DOI:

10.1103/PhysRevC.110.065805

Publication Type:

Article - Original Research Article

Language:

English

Authors:

Sosnin, N. V.
Lederer-Woods, C.
Garg, R.
Battino, U.
Cristallo, S.
Dietz, M.
Heinitz, S.
Krticka, M.
Reifarth, R.
Valenta, S.
Vescovi, D.
Aberle, O.
Alcayne, V.
Amaducci, S.
Andrzejewski, J.
Audouin, L.
Bécares, V.
Babiano-Suarez, V.
Bacak, Michael
Barbagallo, M.
Bečvář, F.
Bellia, G.
Berthoumieux, E.
Billowes, J.
Bosnar, D.
Brown, A.
Busso, M.
Caamaño, M.
Caballero, L.
Calviño, F.
Calviani, M.
Cano-Ott, D.
Casanovas, A.
Cerutti, F.
Chen, Y. H.
Chiaveri, E.
Colonna, N.
Cortés, G.
Cortés-Giraldo, M. A.
Cosentino, L.
Damone, L. A.
Diakaki, M.
Domingo-Pardo, C.
Dressler, R.
Dupont, E.
Durán, I.
Eleme, Z.
Fernández-Domínguez, B.
Ferrari, A.
Finocchiaro, P.
Furman, V.
Göbel, K.
Gawlik-Ramięga, A.
Gilardoni, S.
Glodariu, T.
Gonçalves, I. F.
González-Romero, E.
Guerrero, C.
Gunsing, F.
Harada, H.
Heyse, J.
Jenkins, D. G.
Jericha, Erwin
Käppeler, F.
Kadi, Y.
Kimura, A.
Kivel, N.
Kokkoris, M.
Kopatch, Y.
Kurtulgil, D.
Ladarescu, I.
Leeb, Helmut
Lerendegui-Marco, J.
Lo Meo, S.
Lonsdale, S. J.
Manna, A.
Martínez, T.
Masi, A.
Massimi, C.
Mastinu, P.
Mastromarco, M.
Matteucci, F.
Maugeri, E. A.
Mazzone, A.
Mendoza, E.
Mengoni, A.
Michalopoulou, V.
Milazzo, P. M.
Murphy, A. St. J.
Musumarra, A.
Negret, A.
Nolte, R.
Ogállar, F.
Oprea, A.
Patronis, N.
Pavlik, A.
Perkowski, J.
Piersanti, L.
Porras, I.
Praena, J.
Quesada, J. M.
Radeck, D.
Ramos-Doval, D.
Rauscher, T.
Rochman, D.
Rubbia, C.
Sabaté-Gilarte, M.
Saxena, A.
Schillebeeckx, P.
Schumann, D.
Smith, A. G.
Stamatopoulos, A.
Tagliente, G.
Tain, J.L.
Talip, T.
Tarifeño-Saldivia, A.
Tassan-Got, L.
Torres-Sánchez, P.
Tsinganis, A.
Ulrich, J.
Urlass, S.
Vannini, G.
Variale, V.
Vaz, P.
Ventura, A.
Vlachoudis, V.
Vlastou, R.
Wallner, A.
Woods, P. J.
Wright, T.
Žugec, P.

Author Collaboration:

n_TOF Collaboration

Organisational Unit:

E141-04 - Forschungsbereich Neutron- and Quantum Physics

Journal:

Physical Review C

ISSN:

2469-9985

Date (published):

17-Dec-2024

Number of Pages:

Publisher:

AMER PHYSICAL SOC

Peer reviewed:

Yes

Keywords:

cross section; n_TOF; 78Se

Abstract:

The Se78(n,γ)Se79 cross section has a high impact on the abundances of Se78 produced during the slow neutron capture process (s process) in massive stars. A measurement of the Se78 radiative neutron capture cross section has been performed at the Neutron Time-of-Flight facility at CERN using a set of liquid scintillation detectors that have been optimized for a low sensitivity to neutrons. We present resonance capture kernels up to 70 keV and cross section from 70 to 600 keV. Maxwellian-averaged cross section (MACS) values were calculated for stellar temperatures between kT=5 and 100 keV, with uncertainties between 4.6% and 5.8%. The new MACS values result in substantial decreases of 20-30% of Se78 abundances produced in the s process in massive stars and AGB stars. Massive stars are now predicted to produce subsolar Se78/Se76 ratios, which is expected since Se76 is an s-only isotope, while solar Se78 abundances have also contributions from other nucleosynthesis processes.

Research Areas:

Materials Characterization: 90%
Modeling and Simulation: 10%

Science Branch:

1030 - Physik, Astronomie: 100%

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