Single-particle shell strengths near the doubly magic nucleus 56Ni and the 56Ni(p,γ)57Cu reaction rate in explosive astrophysical burning

Kahl, D.; Woods, P.J.; Poxon-Pearson, T.; Nunes, F.M.; Brown, B.A.; Schatz, H.; Baumann, T.; Bazin, D.; Belarge, J.A.; Bender, P.C.; Elman, B.; Estrade, A.; Gade, A.; Kankainen, A.; Lederer-Woods, C.; Lipschutz, S.; Longfellow, B.; Lonsdale, S.-J.; Lunderberg, E.; Montes, F.; Ong, W.J.; Perdikakis, G.; Pereira, J.; Sullivan, C.; Taverner, R.; Weisshaar, D.; Zegers, R.

doi:10.1016/j.physletb.2019.134803

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Kahl, D., Woods, P.J., Poxon-Pearson, T., Nunes, F.M., Brown, B.A., Schatz, H., Baumann, T., Bazin, D., Belarge, J.A., Bender, P.C., Elman, B., Estrade, A., Gade, A., Kankainen, A., Lederer-Woods, C., Lipschutz, S., Longfellow, B., Lonsdale, S.-J., Lunderberg, E., . . . Zegers, R. (2019). Single-particle shell strengths near the doubly magic nucleus 56Ni and the 56Ni(p,γ)57Cu reaction rate in explosive astrophysical burning. Physics Letters B, 797, Article 134803. https://doi.org/10.1016/j.physletb.2019.134803

Julkaistu sarjassa

Physics Letters B

Tekijät

Kahl, D. |

Woods, P.J. |

Poxon-Pearson, T. |

Nunes, F.M. |

Brown, B.A. |

Schatz, H. |

Baumann, T. |

Bazin, D. |

Belarge, J.A. |

Bender, P.C. |

Elman, B. |

Estrade, A. |

Gade, A. |

Kankainen, A. |

Lederer-Woods, C. |

Lipschutz, S. |

Longfellow, B. |

Lonsdale, S.-J. |

Lunderberg, E. |

Montes, F. |

Ong, W.J. |

Perdikakis, G. |

Pereira, J. |

Sullivan, C. |

Taverner, R. |

Weisshaar, D. |

Zegers, R.

Päivämäärä

2019

Oppiaine

Kiihdytinlaboratorio Accelerator Laboratory

Tekijänoikeudet

Angle-integrated cross-section measurements of the 56Ni(d,n) and (d,p) stripping reactions have been performed to determine the single-particle strengths of low-lying excited states in the mirror nuclei pair 57Cu−57Ni situated adjacent to the doubly magic nucleus 56Ni. The reactions were studied in inverse kinematics utilizing a beam of radioactive 56Ni ions in conjunction with the GRETINA γ-array. Spectroscopic factors are compared with new shell-model calculations using a full pf model space with the GPFX1A Hamiltonian for the isospin-conserving strong interaction plus Coulomb and charge-dependent Hamiltonians. These results were used to set new constraints on the 56Ni(p,γ)57Cu reaction rate for explosive burning conditions in x-ray bursts, where 56Ni represents a key waiting point in the astrophysical rp-process.

Julkaisija

Elsevier BV

ISSN Hae Julkaisufoorumista

0370-2693

Lisätietoja rahoituksesta

This work was supported by the U.S. National Science Foundation (NSF) under Cooperative Agreement No. PHY-1102511 (NSCL) and No. PHY-1430152 (JINA-CEE). GRETINA was funded by the DOE, Office of Science. Operation of the array at NSCL was supported by the DOE under Grants No. DE-SC0014537 (NSCL) and No. DE-AC02-05CH11231 (LBNL). BAB kindly acknowledges funding from an NSF Grant No. PHY-1811855. Th ... showmore

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