Measurement of the 58Ni(α, γ) 62Zn reaction and its astrophysical impact

S.J. Quinn; A. Spyrou; E. Bravo; T. Rauscher; A. Simon; A. Battaglia; M. Bowers; B. Bucher; C. Casarella; M. Couder; P.A. Deyoung; A.C. Dombos; J. Görres; A. Kontos; Q. Li; A. Long; M. Moran; N. Paul; J. Pereira; D. Robertson; K. Smith; M.K. Smith; E. Stech; R. Talwar; W.P. Tan; M. Wiescher

doi:10.1103/PhysRevC.89.054611

Measurement of the 58Ni(α, γ) 62Zn reaction and its astrophysical impact

S.J. Quinn, A. Spyrou, E. Bravo, T. Rauscher, A. Simon, A. Battaglia, M. Bowers, B. Bucher, C. Casarella, M. Couder, P.A. Deyoung, A.C. Dombos, J. Görres, A. Kontos, Q. Li, A. Long, M. Moran, N. Paul, J. Pereira, D. RobertsonK. Smith, M.K. Smith, E. Stech, R. Talwar, W.P. Tan, M. Wiescher

Centre for Astrophysics Research (CAR)

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

15 Citations (Scopus)

115 Downloads (Pure)

Abstract

Cross section measurements of the 58Ni(α,γ)62Zn reaction were performed in the energy range Eα=5.5to9.5 MeV at the Nuclear Science Laboratory of the University of Notre Dame, using the NSCL Summing NaI(Tl) detector and the γ-summing technique. The measurements are compared to predictions in the statistical Hauser-Feshbach model of nuclear reactions using the SMARAGD code. It is found that the energy dependence of the cross section is reproduced well but the absolute value is overestimated by the prediction. This can be remedied by rescaling the α width by a factor of 0.45. Stellar reactivities were calculated with the rescaled α width and their impact on nucleosynthesis in type Ia supernovae has been studied. It is found that the resulting abundances change by up to 5% when using the new reactivities. © 2014 American Physical Society.

Original language	English
Article number	054611
Journal	Physical Review C (nuclear physics)
Volume	89
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.89.054611
Publication status	Published - 16 May 2014

Access to Document

10.1103/PhysRevC.89.054611

1405.6149v1Accepted author manuscript, 169 KB

Cite this

Quinn, S. J., Spyrou, A., Bravo, E., Rauscher, T., Simon, A., Battaglia, A., Bowers, M., Bucher, B., Casarella, C., Couder, M., Deyoung, P. A., Dombos, A. C., Görres, J., Kontos, A., Li, Q., Long, A., Moran, M., Paul, N., Pereira, J., ... Wiescher, M. (2014). Measurement of the 58Ni(α, γ) 62Zn reaction and its astrophysical impact. Physical Review C (nuclear physics), 89(5), Article 054611. https://doi.org/10.1103/PhysRevC.89.054611

@article{0d183b9d727041fe9ed5d9db54b8ed6a,

title = "Measurement of the 58Ni(α, γ) 62Zn reaction and its astrophysical impact",

abstract = "Cross section measurements of the 58Ni(α,γ)62Zn reaction were performed in the energy range Eα=5.5to9.5 MeV at the Nuclear Science Laboratory of the University of Notre Dame, using the NSCL Summing NaI(Tl) detector and the γ-summing technique. The measurements are compared to predictions in the statistical Hauser-Feshbach model of nuclear reactions using the SMARAGD code. It is found that the energy dependence of the cross section is reproduced well but the absolute value is overestimated by the prediction. This can be remedied by rescaling the α width by a factor of 0.45. Stellar reactivities were calculated with the rescaled α width and their impact on nucleosynthesis in type Ia supernovae has been studied. It is found that the resulting abundances change by up to 5% when using the new reactivities. {\textcopyright} 2014 American Physical Society.",

author = "S.J. Quinn and A. Spyrou and E. Bravo and T. Rauscher and A. Simon and A. Battaglia and M. Bowers and B. Bucher and C. Casarella and M. Couder and P.A. Deyoung and A.C. Dombos and J. G{\"o}rres and A. Kontos and Q. Li and A. Long and M. Moran and N. Paul and J. Pereira and D. Robertson and K. Smith and M.K. Smith and E. Stech and R. Talwar and W.P. Tan and M. Wiescher",

note = "Funding Details: PHY 08-22648, NSF, National Science Foundation; PHY 0969058, NSF, National Science Foundation; PHY 1102511, NSF, National Science Foundation",

year = "2014",

month = may,

day = "16",

doi = "10.1103/PhysRevC.89.054611",

language = "English",

volume = "89",

journal = "Physical Review C (nuclear physics)",

issn = "2469-9985",

publisher = "American Physical Society (APS)",

number = "5",

}

Quinn, SJ, Spyrou, A, Bravo, E, Rauscher, T, Simon, A, Battaglia, A, Bowers, M, Bucher, B, Casarella, C, Couder, M, Deyoung, PA, Dombos, AC, Görres, J, Kontos, A, Li, Q, Long, A, Moran, M, Paul, N, Pereira, J, Robertson, D, Smith, K, Smith, MK, Stech, E, Talwar, R, Tan, WP & Wiescher, M 2014, 'Measurement of the 58Ni(α, γ) 62Zn reaction and its astrophysical impact', Physical Review C (nuclear physics), vol. 89, no. 5, 054611. https://doi.org/10.1103/PhysRevC.89.054611

TY - JOUR

T1 - Measurement of the 58Ni(α, γ) 62Zn reaction and its astrophysical impact

AU - Quinn, S.J.

AU - Spyrou, A.

AU - Bravo, E.

AU - Rauscher, T.

AU - Simon, A.

AU - Battaglia, A.

AU - Bowers, M.

AU - Bucher, B.

AU - Casarella, C.

AU - Couder, M.

AU - Deyoung, P.A.

AU - Dombos, A.C.

AU - Görres, J.

AU - Kontos, A.

AU - Li, Q.

AU - Long, A.

AU - Moran, M.

AU - Paul, N.

AU - Pereira, J.

AU - Robertson, D.

AU - Smith, K.

AU - Smith, M.K.

AU - Stech, E.

AU - Talwar, R.

AU - Tan, W.P.

AU - Wiescher, M.

N1 - Funding Details: PHY 08-22648, NSF, National Science Foundation; PHY 0969058, NSF, National Science Foundation; PHY 1102511, NSF, National Science Foundation

PY - 2014/5/16

Y1 - 2014/5/16

N2 - Cross section measurements of the 58Ni(α,γ)62Zn reaction were performed in the energy range Eα=5.5to9.5 MeV at the Nuclear Science Laboratory of the University of Notre Dame, using the NSCL Summing NaI(Tl) detector and the γ-summing technique. The measurements are compared to predictions in the statistical Hauser-Feshbach model of nuclear reactions using the SMARAGD code. It is found that the energy dependence of the cross section is reproduced well but the absolute value is overestimated by the prediction. This can be remedied by rescaling the α width by a factor of 0.45. Stellar reactivities were calculated with the rescaled α width and their impact on nucleosynthesis in type Ia supernovae has been studied. It is found that the resulting abundances change by up to 5% when using the new reactivities. © 2014 American Physical Society.

AB - Cross section measurements of the 58Ni(α,γ)62Zn reaction were performed in the energy range Eα=5.5to9.5 MeV at the Nuclear Science Laboratory of the University of Notre Dame, using the NSCL Summing NaI(Tl) detector and the γ-summing technique. The measurements are compared to predictions in the statistical Hauser-Feshbach model of nuclear reactions using the SMARAGD code. It is found that the energy dependence of the cross section is reproduced well but the absolute value is overestimated by the prediction. This can be remedied by rescaling the α width by a factor of 0.45. Stellar reactivities were calculated with the rescaled α width and their impact on nucleosynthesis in type Ia supernovae has been studied. It is found that the resulting abundances change by up to 5% when using the new reactivities. © 2014 American Physical Society.

U2 - 10.1103/PhysRevC.89.054611

DO - 10.1103/PhysRevC.89.054611

M3 - Article

SN - 2469-9985

VL - 89

JO - Physical Review C (nuclear physics)

JF - Physical Review C (nuclear physics)

IS - 5

M1 - 054611

ER -

Measurement of the 58Ni(α, γ) 62Zn reaction and its astrophysical impact

Abstract

Access to Document

Fingerprint

Cite this