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Coulomb dissociation of P-27 at 500 MeV/u

J. Marganiec ; S. B. Novo ; S. Typel ; C. Langer ; C. Wimmer ; H. Alvarez-Pol ; T. Aumann ; K. Boretzky ; E. Casarejos ; A. Chatillon ; D. Cortina-Gil ; U. Datta-Pramanik ; Z. Elekes ; Z. Fulop ; D. Galaviz ; H. Geissel ; S. Giron ; U. Greife ; F. Hammache ; M. Heil ; J. Hoffman ; Håkan T. Johansson (Institutionen för fysik, Subatomär fysik och plasmafysik, Experimentell subatomär fysik (Chalmers)) ; O. Kiselev ; N. Kurz ; K. Larsson ; T. Le Bleis ; A. Litvinov ; K. Mahata ; C. Muentz ; C. Nociforo ; W. Ott ; S. Paschalis ; R. Plag ; W. Prokopowicz ; C. R. Tajes ; D. M. Rossi ; H. Simon ; M. Stanoiu ; J. Stroth ; K. Summerer ; A. Wagner ; F. Wamers ; H. Weick ; M. Wiescher
Physical Review C. Nuclear Physics (0556-2813). Vol. 93 (2016), 4,
[Artikel, refereegranskad vetenskaplig]

The proton-capture reaction Si-26(p,gamma)(27) P was studied via Coulomb dissociation (CD) of P-27 at an incident energy of about 500 MeV/u. The three lowest-lying resonances in P-27 have been populated and their resonance strengths have been measured. In addition, a nonresonant direct-capture component was clearly identified and its astrophysical S factor measured. The experimental results are compared to Monte Carlo simulations of the CD process using a semiclassical model. Our thermonuclear reaction rates show good agreement with the rates from a recent compilation. With respect to the nuclear structure of P-27 we have found evidence for a negative-parity intruder state at 2.88-MeV excitation energy.

Denna post skapades 2016-06-03. Senast ändrad 2016-07-05.
CPL Pubid: 237301


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