Published September 2011 | Version v1
Journal article Metadata-only

Resonance states in 27P using Coulomb dissociation and their effect on the stellar reaction 26Si(p,γ) 27P

Creators

  • 1. RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)
  • 2. Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501 (Japan)

Description

The stellar reaction 26Si(p, γ)27P was studied in the Coulomb dissociation of 27P. Two known resonance levels in 27P were excited and a candidate for the third excited state was found in the 26Si p relative energy spectrum. The E2 resonance strengths ωγ were obtained to be (6.5±1.3)x10-11, (6.0±1.1)x10-10, and (1.10±0.27)x10-10 MeV. The total (E2+M1) ωγ value for the first excited state was evaluated to be 1.9-1.1+1.9x10-9 MeV with the help of the shell model. The error was estimated from the deviation of theoretical predictions with the same shell model from experimental strengths obtained in the present study for 27P and earlier ones for the mirror nucleus 27Mg. The astrophysical reaction rate for the 26Si(p, γ)27P reaction was also calculated and compared with previous estimations.

Additional details

Identifiers

DOI
10.1103/PhysRevC.84.035808;

Publishing Information

Journal Title
Physical Review. C, Nuclear Physics
Journal Volume
84
Journal Issue
3
Journal Page Range
p. 035808-035808.7
ISSN
0556-2813
CODEN
PRVCAN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43074456
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
DISSOCIATION; E2-TRANSITIONS; ENERGY SPECTRA; EXCITED STATES; GAMMA DECAY; M1-TRANSITIONS; MAGNESIUM 27; MIRROR NUCLEI; PHOSPHORUS 27; PROTON REACTIONS; REACTION KINETICS; RESONANCE; SHELL MODELS; SILICON 26
Descriptors DEC
ALKALINE EARTH ISOTOPES; BARYON REACTIONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CHARGED-PARTICLE REACTIONS; DECAY; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HADRON REACTIONS; ISOTOPES; KINETICS; LIGHT NUCLEI; MAGNESIUM ISOTOPES; MATHEMATICAL MODELS; MILLISECONDS LIVING RADIOISOTOPES; MINUTES LIVING RADIOISOTOPES; MULTIPOLE TRANSITIONS; NUCLEAR DECAY; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; ODD-EVEN NUCLEI; PHOSPHORUS ISOTOPES; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SILICON ISOTOPES; SPECTRA

Optional Information

Notes
(c) 2011 American Institute of Physics