The 88Sr(p,γ)89Y reaction at astrophysically relevant energies

Details The 88Sr(p,γ)89Y reaction at astrophysically relevant energies The 88Sr(p,γ)89Y reaction at astrophysically relevant energies

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003phrvc..67a5801g&link_type=abstract

Physical Review C, vol. 67, Issue 1, id. 015801

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20

Radiative Capture, Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments, 90<=A<=149, Abundances, Chemical Composition

Scientific paper

The cross section of the 88Sr(p,γ)89Y reaction was determined by in-beam measurements at energies Ep=1.4 5 MeV relevant to the nucleosynthetic p process. At Ep⩾3.5 MeV, the γ angular distributions were obtained by using one HPGe detector of 80% relative efficiency, whereas at Ep⩽3.5 MeV they were measured by means of an array of four HPGe detectors all shielded with BGO crystals for Compton background supression. Three of them had a relative efficiency ɛr≈100%, whereas the remaining one had ɛr≈78%. From the resulting cross sections, that lie in the 0.5-μb 5-mb range, astrophysical S factors and reaction rates have been derived. Cross sections, S factors, and reaction rates have also been calculated by means of the statistical model code MOST. A very good agreement between the experimental data and the theoretical predictions has been found.

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