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Ni62(n,γ) and Ni63(n,γ) cross sections measured at the n_TOF facility at CERN

Lederer, C.; Massimi, C.; Berthoumieux, E.; Colonna, N.; Dressler, R.; Guerrero, C.; Gunsing, F.; Käppeler, F.; Kivel, N.; Pignatari, M.; Reifarth, R.; Schumann, D.; Wallner, A.; Altstadt, S.; Andriamonje, S.; Andrzejewski, J.; Audouin, L.; Barbagallo, M.; Bécares, V.; Bečvář, F.; Belloni, F.; Berthier, B.; Billowes, J.; Boccone, V.; Bosnar, D.; Brugger, M.; Calviani, M.; Calviño, F.; Cano-Ott, D.; Carrapiço, C.; Cerutti, F.; Chiaveri, E.; Chin, M.; Cortés, G.; Cortés-Giraldo, M. A.; Dillmann, I.; Domingo-Pardo, C.; Duran, I.; Dzysiuk, N.; Eleftheriadis, C.; Fernández-Ordóñez, M.; Ferrari, A.; Fraval, K.; Ganesan, S.; García, A. R.; Giubrone, G.; Gómez-Hornillos, M. B.; Gonçalves, I. F.; González-Romero, E.; Gramegna, F.; Griesmayer, E.; Gurusamy, P.; Harrisopulos, S.; Heil, M.; Ioannides, K.; Jenkins, D. G.; Jericha, E.; Kadi, Y.; Karadimos, D.; Korschinek, G.; Krtička, M.; Kroll, J.; Langer, C.; Lebbos, E.; Leeb, H.; Leong, L. S.; Losito, R.; Lozano, M.; Manousos, A.; Marganiec, J.; Marrone, S.; Martinez, T.; Mastinu, P. F.; Mastromarco, M.; Meaze, M.; Mendoza, E.; Mengoni, A.; Milazzo, P. M.; Mingrone, F.; Mirea, M.; Mondalaers, W.; Paradela, C.; Pavlik, A.; Perkowski, J.; Plag, R.; Plompen, A.; Praena, J.; Quesada, J. M.; Rauscher, T.; Riego, A.; Roman, F.; Rubbia, C.; Sarmento, R.; Schillebeeckx, P.; Schmidt, S.; Tagliente, G.; Tain, J. L.; Tarrío, D.; Tsinganis, A.; Tassan-Got, L.

Authors

C. Lederer

C. Massimi

E. Berthoumieux

N. Colonna

R. Dressler

C. Guerrero

F. Gunsing

F. Käppeler

N. Kivel

R. Reifarth

D. Schumann

A. Wallner

S. Altstadt

S. Andriamonje

J. Andrzejewski

L. Audouin

M. Barbagallo

V. Bécares

F. Bečvář

F. Belloni

B. Berthier

J. Billowes

V. Boccone

D. Bosnar

M. Brugger

M. Calviani

F. Calviño

D. Cano-Ott

C. Carrapiço

F. Cerutti

E. Chiaveri

M. Chin

G. Cortés

M. A. Cortés-Giraldo

I. Dillmann

C. Domingo-Pardo

I. Duran

N. Dzysiuk

C. Eleftheriadis

M. Fernández-Ordóñez

A. Ferrari

K. Fraval

S. Ganesan

A. R. García

G. Giubrone

M. B. Gómez-Hornillos

I. F. Gonçalves

E. González-Romero

F. Gramegna

E. Griesmayer

P. Gurusamy

S. Harrisopulos

M. Heil

K. Ioannides

D. G. Jenkins

E. Jericha

Y. Kadi

D. Karadimos

G. Korschinek

M. Krtička

J. Kroll

C. Langer

E. Lebbos

H. Leeb

L. S. Leong

R. Losito

M. Lozano

A. Manousos

J. Marganiec

S. Marrone

T. Martinez

P. F. Mastinu

M. Mastromarco

M. Meaze

E. Mendoza

A. Mengoni

P. M. Milazzo

F. Mingrone

M. Mirea

W. Mondalaers

C. Paradela

A. Pavlik

J. Perkowski

R. Plag

A. Plompen

J. Praena

J. M. Quesada

T. Rauscher

A. Riego

F. Roman

C. Rubbia

R. Sarmento

P. Schillebeeckx

S. Schmidt

G. Tagliente

J. L. Tain

D. Tarrío

A. Tsinganis

L. Tassan-Got



Abstract

The cross section of the Ni62(n,γ) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n-TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200 keV neutron energy and Maxwellian averaged cross sections (MACS) from kT= 5-100 keV were calculated. With a total uncertainty of 4.5%, the stellar cross section is in excellent agreement with the the KADoNiS compilation at kT=30 keV, while being systematically lower up to a factor of 1.6 at higher stellar temperatures. The cross section of the Ni63(n,γ) reaction was measured for the first time at n-TOF. We determined unresolved cross sections from 10 to 270 keV with a systematic uncertainty of 17%. These results provide fundamental constraints on s-process production of heavier species, especially the production of Cu in massive stars, which serve as the dominant source of Cu in the solar system. © 2014 American Physical Society.

Journal Article Type Article
Publication Date Feb 28, 2014
Journal Physical Review C - Nuclear Physics
Print ISSN 0556-2813
Electronic ISSN 1089-490X
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 89
Issue 2
Article Number 025810
APA6 Citation Lederer, C., Massimi, C., Berthoumieux, E., Colonna, N., Dressler, R., Guerrero, C., …Tassan-Got, L. (2014). Ni62(n,γ) and Ni63(n,γ) cross sections measured at the n_TOF facility at CERN. Physical Review C - Nuclear Physics, 89(2), https://doi.org/10.1103/physrevc.89.025810
DOI https://doi.org/10.1103/physrevc.89.025810
Publisher URL https://journals.aps.org/prc/abstract/10.1103/PhysRevC.89.025810
Copyright Statement ©2015 American Physical Society

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