nucl-th digest · Jul 29, 2019

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

D. Kahl · P. J. Woods · T. Poxon-Pearson · F. M. Nunes · B. A. Brown · H. Schatz · T. Baumann · D. Bazin · J. A. Belarge · P. C. Bender · B. Elman · A. Estrade and 15 other authors

Angle-integrated cross-section measurements of the $^{56}$ Ni(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 $^{57}$ Cu- $^{57}$ Ni situated adjacent to the doubly magic nucleus $^{56}$ Ni. The reactions were studied in inverse kinematics utilizing a beam of radioactive $^{56}$ Ni ions in conjunction with the GRETINA $γ$ -array. Spectroscopic factors are compared with new shell-model calculations using a full $p f$ 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 $^{56}$ Ni(p, $γ$ ) $^{57}$ Cu reaction rate for explosive burning conditions in x-ray bursts, where $^{56}$ Ni represents a key waiting point in the astrophysical rp-process.

↳ nucl-exastro-ph.SRnucl-thPLB(2019)·19 citations

Monday·July 29, 2019

Lepton angular distributions of Drell-Yan process in pQCD and a geometric approach

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

Affiliations

Lepton angular distributions of Drell-Yan process in pQCD and a geometric approach

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

Affiliations

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