Stellar (n, γ) cross section of62Ni

H. Nassar; M. Paul; I. Ahmad; D. Berkovits; M. Bettan; P. Collon; S. Dababneh; S. Ghelberg; J. P. Greene; A. Heger; M. Heil; D. J. Henderson; C. L. Jiang; F. Käppeler; H. Koivisto; S. O'Brien; R. C. Pardo; N. Patronis; T. Pennington; R. Plag; K. E. Rehm; R. Reifarth; R. Scott; S. Sinha; X. Tang; R. Vondrasek

doi:10.1103/PhysRevLett.94.092504

Stellar (n, γ) cross section of⁶²Ni

H. Nassar, M. Paul^*, I. Ahmad, D. Berkovits, M. Bettan, P. Collon, S. Dababneh, S. Ghelberg, J. P. Greene, A. Heger, M. Heil, D. J. Henderson, C. L. Jiang, F. Käppeler, H. Koivisto, S. O'Brien, R. C. Pardo, N. Patronis, T. Pennington, R. PlagK. E. Rehm, R. Reifarth, R. Scott, S. Sinha, X. Tang, R. Vondrasek

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

89 Scopus citations

Abstract

The ⁶²Ni(n, γ)⁶³Ni(t_1/2 = 100 ± 2 yr) reaction plays an important role in the control of the flow path of the slow neutron-capture (s) nucleosynthesis process. We have measured for the first time the total cross section of this reaction for a quasi-Maxwellian (kT = 25 keV) neutron flux. The measurement was performed by fast-neutron activation, combined with accelerator mass spectrometry to detect directly the ⁶³Ni product nuclei. The experimental value of 28.4 ± 2.8 mb, fairly consistent with a recent calculation, affects the calculated net yield of ⁶²Ni itself and the whole distribution of nuclei with 62 < A < 90 produced by the weak s process in massive stars.

Original language	English
Article number	092504
Journal	Physical Review Letters
Volume	94
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.94.092504
State	Published - 11 Mar 2005

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Nassar, H., Paul, M., Ahmad, I., Berkovits, D., Bettan, M., Collon, P., Dababneh, S., Ghelberg, S., Greene, J. P., Heger, A., Heil, M., Henderson, D. J., Jiang, C. L., Käppeler, F., Koivisto, H., O'Brien, S., Pardo, R. C., Patronis, N., Pennington, T., ... Vondrasek, R. (2005). Stellar (n, γ) cross section of⁶²Ni. Physical Review Letters, 94(9), Article 092504. https://doi.org/10.1103/PhysRevLett.94.092504

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title = "Stellar (n, γ) cross section of62Ni",

abstract = "The 62Ni(n, γ)63Ni(t1/2 = 100 ± 2 yr) reaction plays an important role in the control of the flow path of the slow neutron-capture (s) nucleosynthesis process. We have measured for the first time the total cross section of this reaction for a quasi-Maxwellian (kT = 25 keV) neutron flux. The measurement was performed by fast-neutron activation, combined with accelerator mass spectrometry to detect directly the 63Ni product nuclei. The experimental value of 28.4 ± 2.8 mb, fairly consistent with a recent calculation, affects the calculated net yield of 62Ni itself and the whole distribution of nuclei with 62 < A < 90 produced by the weak s process in massive stars.",

author = "H. Nassar and M. Paul and I. Ahmad and D. Berkovits and M. Bettan and P. Collon and S. Dababneh and S. Ghelberg and Greene, {J. P.} and A. Heger and M. Heil and Henderson, {D. J.} and Jiang, {C. L.} and F. K{\"a}ppeler and H. Koivisto and S. O'Brien and Pardo, {R. C.} and N. Patronis and T. Pennington and R. Plag and Rehm, {K. E.} and R. Reifarth and R. Scott and S. Sinha and X. Tang and R. Vondrasek",

year = "2005",

month = mar,

day = "11",

doi = "10.1103/PhysRevLett.94.092504",

language = "אנגלית",

volume = "94",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "9",

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Nassar, H, Paul, M, Ahmad, I, Berkovits, D, Bettan, M, Collon, P, Dababneh, S, Ghelberg, S, Greene, JP, Heger, A, Heil, M, Henderson, DJ, Jiang, CL, Käppeler, F, Koivisto, H, O'Brien, S, Pardo, RC, Patronis, N, Pennington, T, Plag, R, Rehm, KE, Reifarth, R, Scott, R, Sinha, S, Tang, X & Vondrasek, R 2005, 'Stellar (n, γ) cross section of⁶²Ni', Physical Review Letters, vol. 94, no. 9, 092504. https://doi.org/10.1103/PhysRevLett.94.092504

TY - JOUR

T1 - Stellar (n, γ) cross section of62Ni

AU - Nassar, H.

AU - Paul, M.

AU - Ahmad, I.

AU - Berkovits, D.

AU - Bettan, M.

AU - Collon, P.

AU - Dababneh, S.

AU - Ghelberg, S.

AU - Greene, J. P.

AU - Heger, A.

AU - Heil, M.

AU - Henderson, D. J.

AU - Jiang, C. L.

AU - Käppeler, F.

AU - Koivisto, H.

AU - O'Brien, S.

AU - Pardo, R. C.

AU - Patronis, N.

AU - Pennington, T.

AU - Plag, R.

AU - Rehm, K. E.

AU - Reifarth, R.

AU - Scott, R.

AU - Sinha, S.

AU - Tang, X.

AU - Vondrasek, R.

PY - 2005/3/11

Y1 - 2005/3/11

N2 - The 62Ni(n, γ)63Ni(t1/2 = 100 ± 2 yr) reaction plays an important role in the control of the flow path of the slow neutron-capture (s) nucleosynthesis process. We have measured for the first time the total cross section of this reaction for a quasi-Maxwellian (kT = 25 keV) neutron flux. The measurement was performed by fast-neutron activation, combined with accelerator mass spectrometry to detect directly the 63Ni product nuclei. The experimental value of 28.4 ± 2.8 mb, fairly consistent with a recent calculation, affects the calculated net yield of 62Ni itself and the whole distribution of nuclei with 62 < A < 90 produced by the weak s process in massive stars.

AB - The 62Ni(n, γ)63Ni(t1/2 = 100 ± 2 yr) reaction plays an important role in the control of the flow path of the slow neutron-capture (s) nucleosynthesis process. We have measured for the first time the total cross section of this reaction for a quasi-Maxwellian (kT = 25 keV) neutron flux. The measurement was performed by fast-neutron activation, combined with accelerator mass spectrometry to detect directly the 63Ni product nuclei. The experimental value of 28.4 ± 2.8 mb, fairly consistent with a recent calculation, affects the calculated net yield of 62Ni itself and the whole distribution of nuclei with 62 < A < 90 produced by the weak s process in massive stars.

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SN - 0031-9007

VL - 94

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

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ER -

Stellar (n, γ) cross section of⁶²Ni

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