6533b86efe1ef96bd12cb60e
RESEARCH PRODUCT
Single-particle shell strengths near the doubly magic nucleus 56Ni and the 56Ni(p,γ)57Cu reaction rate in explosive astrophysical burning
A. EstradeW.-j. OngE. LunderbergPhilip WoodsD. BazinR. G. T. ZegersAlexandra GadeD. KahlD. WeisshaarClaudia Lederer-woodsBrenden LongfellowT. Poxon-pearsonJ. PereiraHendrik SchatzFernando MontesP. C. BenderBrandon ElmanS. LipschutzS. J. LonsdaleThomas BaumannR. TavernerAnu KankainenC. SullivanFilomena NunesG. PerdikakisB. A. BrownJ. Belargesubject
Nuclear and High Energy Physicsastro-ph.SRNuclear TheoryExplosive materialnucl-thStrong interactionnucl-ex01 natural sciencesIonReaction ratesymbols.namesake0103 physical sciencesCoulombMirror nuclei010306 general physicsNuclear ExperimentNuclear ExperimentPhysicsradioactive beams010308 nuclear & particles physicsshell modellcsh:QC1-999Astrophysics - Solar and Stellar AstrophysicsExcited statesymbolsX-ray burststransfer reactionsAtomic physicsHamiltonian (quantum mechanics)ydinfysiikkalcsh:Physicsdescription
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 $\gamma$-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 $^{56}$Ni(p,$\gamma$)$^{57}$Cu reaction rate for explosive burning conditions in x-ray bursts, where $^{56}$Ni represents a key waiting point in the astrophysical rp-process.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-10-01 | Physics Letters B |