Open AccessCoulomb dissociation ofP27at 500 MeV/u
Author(s) -
J. Marganiec,
S. Beceiro-Novo,
S. Typel,
C. Langer,
Christian Wimmer,
H. ÁlvarezPol,
T. Aumann,
K. Boretzky,
E. Casarejos,
A. Chatillon,
D. Cortina-Gil,
U. Datta Pramanik,
Z. Elekes,
Zs. Fülöp,
D. Galaviz,
H. Geißel,
S. Giron,
U. Greife,
F. Hammache,
M. Heil,
James M. Hoffman,
H. Johansson,
O. Kiselev,
N. Kurz,
Kristian Larsson,
T. Le Bleis,
Yu. A. Litvinov,
K. Mahata,
C. Müentz,
C. Nociforo,
W. Ott,
S. Paschalis,
R. Plag,
W. Prokopowicz,
C. Rodríguez Tajes,
D. Rossi,
H. Simon,
M. Stănoiu,
J. Stroth,
K. Sümmerer,
A. Wagner,
F. Wamers,
H. Weick,
M. Wiescher
Publication year - 2016
Publication title -
physical review. c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.679
H-Index - 235
eISSN - 2469-9993
pISSN - 2469-9985
DOI - 10.1103/physrevc.93.045811
Subject(s) - physics , coulomb excitation , dissociation (chemistry) , atomic physics , excitation , monte carlo method , coulomb , thermonuclear fusion , nuclear physics , nuclear reaction , parity (physics) , proton , electron , plasma , excited state , quantum mechanics , chemistry , statistics , mathematics
International audienceThe proton-capture reaction Si26(p,γ)P27 was studied via Coulomb dissociation (CD) of P27 at an incident energy of about 500 MeV/u. The three lowest-lying resonances in P27 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 P27 we have found evidence for a negative-parity intruder state at 2.88-MeV excitation energy