Strong resonances in elastic scattering of radioactive 21Na on protons

Details Strong resonances in elastic scattering of radioactive 21Na on protons Strong resonances in elastic scattering of radioactive 21Na on protons

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002phrvc..65d2801r&link_type=abstract

Physical Review C, vol. 65, Issue 4, id. 042801

Other

11

Elastic Scattering, Resonance Reactions, Elastic Proton Scattering, Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments

Scientific paper

In a first experiment with accelerated beams at TRIUMF-ISAC, the scattering of radioactive 21Na (T1/2=22.49 s) on protons has been investigated. 21Na beams of typically 5×107 particles/s were employed while center-of-mass energies from 0.45 to 1.4 MeV were scanned and spectra with high statistics were collected. The experiment was carried out using large area silicon detectors at the TUDA facility. Three strong resonances corresponding to states in 22Mg have been identified at energies of 830 keV, 1115 keV, and 1311 keV, respectively. Inelastic proton scattering to the first excited state of 21Na at 332 keV was also observed for these resonances. Using these data, aspects of the T=1, A=22 mirror system and the s-wave component of the astrophysically important 21Na(p,γ)22Mg reaction are discussed.

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