Phys.Rev. C 97, 054307 (2018)

B.Longfellow, A.Gade, B.A.Brown, W.A.Richter, D.Bazin, P.C.Bender, M.Bowry, B.Elman, E.Lunderberg, D.Weisshaar, S.J.Williams

Measurement of key resonances for the ²⁴Al(p, γ) ²⁵Si reaction rate using in-beam γ-ray spectroscopy

NUCLEAR REACTIONS ⁹Be(²⁶Si, ²⁵Si), E=118 MeV/nucleon; ⁹Be(²⁵Al, ²⁵Si), E=111 MeV/nucleon, [secondary ²⁵Al and ²⁶Si beams from ⁹Be(³⁶Ar, X), E=150 MeV/nucleon primary reaction, and using A1900 fragment separator]; measured reaction products, yields, Eγ, Iγ, γγ- and (particle)γ-coin using S800 spectrograph for particles, and the CAESAR and SeGA arrays for γ detection at NSCL-MSU. ²⁵Si; deduced levels, J, π, and γ-decay branching ratios, and compared with experimental levels for mirror nucleus ²⁵Na, and with USDB+CD shell-model calculations. ²⁴Al(p, γ)²⁵Si, T=0.1-10 GK; calculated astrophysical reaction rates using the experimental states and states from charge-dependent USDA and USDB shell-model calculations. Comparison with other theoretical reaction rates.

doi: 10.1103/PhysRevC.97.054307