80Se(n,γ) cross-section measurement at CERN n TOF

nToF; A.S. Brown

doi:10.1088/1742-6596/1668/1/012001

⁸⁰Se(n,γ) cross-section measurement at CERN n TOF

nToF, A.S. Brown

Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

Radiative neutron capture cross section measurements are of fundamental importance for the study of the slow neutron capture (s-) process of nucleosynthesis. This mechanism is responsible for the formation of most elements heavier than iron in the Universe. Particularly relevant are branching nuclei along the s-process path, which are sensitive to the physical conditions of the stellar environment. One such example is the branching at 79Se (3.27 × 105 y), which shows a thermally dependent ß-decay rate. However, an astrophysically consistent interpretation requires also the knowledge of the closest neighbour isotopes involved. In particular, the 80Se(n,?) cross section directly affects the stellar yield of the "cold"branch leading to the formation of the s-only 82Kr. Experimentally, there exists only one previous measurement on 80Se using the time of flight (TOF) technique. However, the latter suffers from some limitations that are described in this presentation. These drawbacks have been significantly improved in a recent measurement at CERN n TOF. This contribution presents a summary of the latter measurement and the status of the data analysis.

Original language	English
Article number	012001
Journal	Journal of Physics: Conference Series
Volume	1668
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1668/1/012001
Publication status	Published - 21 Oct 2020
Event	9th Nuclear Physics in Astrophysics, NPA 2019 - Frankfurt, Germany Duration: 15 Sept 2019 → 20 Sept 2019

Bibliographical note

Funding Information:
We acknowledge support from from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No. 681740), and the Spanish project FPA2017-83946-C2-1-P.

© Published under licence by IOP Publishing Ltd.

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10.1088/1742-6596/1668/1/012001

80Se(n,γ) cross-section measurement at CERN n TOF
© Published under licence by IOP Publishing Ltd.
Final published version, 642 KBLicence: CC BY

Cite this

@article{3218ec80028c45ada77e7c760ab6f1a5,

title = "80Se(n,γ) cross-section measurement at CERN n TOF",

abstract = "Radiative neutron capture cross section measurements are of fundamental importance for the study of the slow neutron capture (s-) process of nucleosynthesis. This mechanism is responsible for the formation of most elements heavier than iron in the Universe. Particularly relevant are branching nuclei along the s-process path, which are sensitive to the physical conditions of the stellar environment. One such example is the branching at 79Se (3.27 × 105 y), which shows a thermally dependent {\ss}-decay rate. However, an astrophysically consistent interpretation requires also the knowledge of the closest neighbour isotopes involved. In particular, the 80Se(n,?) cross section directly affects the stellar yield of the {"}cold{"}branch leading to the formation of the s-only 82Kr. Experimentally, there exists only one previous measurement on 80Se using the time of flight (TOF) technique. However, the latter suffers from some limitations that are described in this presentation. These drawbacks have been significantly improved in a recent measurement at CERN n TOF. This contribution presents a summary of the latter measurement and the status of the data analysis.",

author = "nToF and V. Babiano-Suarez and O. Aberle and V. Alcayne and S. Amaducci and J. Andrzejewski and L. Audouin and M. Bacak and J. Balibrea-Correa and M. Barbagallo and S. Bennett and E. Berthoumieux and A.S. Brown and D. Bosnar and M. Busso and M. Caamao and L. Caballero and M. Calviani and F. Calvio and D. Cano-Ott and A. Casanovas and F. Cerutti and E. Chiaveri and N. Colonna and Cort{\'e}s, {G. P.} 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 C. Domingo-Pardo and R. Dressler and Q. Ducasse and E. Dupont and I. Durn and Z. Eleme and B. Fernndez-Dom{\'i}ngez and A. Ferrari and I. Ferro-Gon{\c c}alves and P. Finocchiaro and V. Furman and R. Garg and A. Gawlik and S. Gilardoni and K. G{\"o}bel and E. Gonzlez-Romero and C. Guerrero and Jenkins, {D. G.} and T.J. Wright",

note = "Funding Information: We acknowledge support from from the European Research Council (ERC) under the European Union{\textquoteright}s Horizon 2020 research and innovation program (grant agreement No. 681740), and the Spanish project FPA2017-83946-C2-1-P. {\textcopyright} Published under licence by IOP Publishing Ltd. ; 9th Nuclear Physics in Astrophysics, NPA 2019 ; Conference date: 15-09-2019 Through 20-09-2019",

year = "2020",

month = oct,

day = "21",

doi = "10.1088/1742-6596/1668/1/012001",

language = "English",

volume = "1668",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing",

number = "1",

}

TY - JOUR

T1 - 80Se(n,γ) cross-section measurement at CERN n TOF

AU - nToF

AU - Babiano-Suarez, V.

AU - Aberle, O.

AU - Alcayne, V.

AU - Amaducci, S.

AU - Andrzejewski, J.

AU - Audouin, L.

AU - Bacak, M.

AU - Balibrea-Correa, J.

AU - Barbagallo, M.

AU - Bennett, S.

AU - Berthoumieux, E.

AU - Brown, A.S.

AU - Bosnar, D.

AU - Busso, M.

AU - Caamao, M.

AU - Caballero, L.

AU - Calviani, M.

AU - Calvio, F.

AU - Cano-Ott, D.

AU - Casanovas, A.

AU - Cerutti, F.

AU - Chiaveri, E.

AU - Colonna, N.

AU - Cortés, G. P.

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 - Domingo-Pardo, C.

AU - Dressler, R.

AU - Ducasse, Q.

AU - Dupont, E.

AU - Durn, I.

AU - Eleme, Z.

AU - Fernndez-Domíngez, B.

AU - Ferrari, A.

AU - Ferro-Gonçalves, I.

AU - Finocchiaro, P.

AU - Furman, V.

AU - Garg, R.

AU - Gawlik, A.

AU - Gilardoni, S.

AU - Göbel, K.

AU - Gonzlez-Romero, E.

AU - Guerrero, C.

AU - Jenkins, D. G.

AU - Wright, T.J.

N1 - Funding Information: We acknowledge support from from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No. 681740), and the Spanish project FPA2017-83946-C2-1-P. © Published under licence by IOP Publishing Ltd.

PY - 2020/10/21

Y1 - 2020/10/21

N2 - Radiative neutron capture cross section measurements are of fundamental importance for the study of the slow neutron capture (s-) process of nucleosynthesis. This mechanism is responsible for the formation of most elements heavier than iron in the Universe. Particularly relevant are branching nuclei along the s-process path, which are sensitive to the physical conditions of the stellar environment. One such example is the branching at 79Se (3.27 × 105 y), which shows a thermally dependent ß-decay rate. However, an astrophysically consistent interpretation requires also the knowledge of the closest neighbour isotopes involved. In particular, the 80Se(n,?) cross section directly affects the stellar yield of the "cold"branch leading to the formation of the s-only 82Kr. Experimentally, there exists only one previous measurement on 80Se using the time of flight (TOF) technique. However, the latter suffers from some limitations that are described in this presentation. These drawbacks have been significantly improved in a recent measurement at CERN n TOF. This contribution presents a summary of the latter measurement and the status of the data analysis.

AB - Radiative neutron capture cross section measurements are of fundamental importance for the study of the slow neutron capture (s-) process of nucleosynthesis. This mechanism is responsible for the formation of most elements heavier than iron in the Universe. Particularly relevant are branching nuclei along the s-process path, which are sensitive to the physical conditions of the stellar environment. One such example is the branching at 79Se (3.27 × 105 y), which shows a thermally dependent ß-decay rate. However, an astrophysically consistent interpretation requires also the knowledge of the closest neighbour isotopes involved. In particular, the 80Se(n,?) cross section directly affects the stellar yield of the "cold"branch leading to the formation of the s-only 82Kr. Experimentally, there exists only one previous measurement on 80Se using the time of flight (TOF) technique. However, the latter suffers from some limitations that are described in this presentation. These drawbacks have been significantly improved in a recent measurement at CERN n TOF. This contribution presents a summary of the latter measurement and the status of the data analysis.

UR - http://www.scopus.com/inward/record.url?scp=85096358293&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1668/1/012001

DO - 10.1088/1742-6596/1668/1/012001

M3 - Conference article

AN - SCOPUS:85096358293

SN - 1742-6588

VL - 1668

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012001

T2 - 9th Nuclear Physics in Astrophysics, NPA 2019

Y2 - 15 September 2019 through 20 September 2019

ER -