First Nuclear Self-Absorption Experiment at HIγS Relevant to Astrophysics

Details First Nuclear Self-Absorption Experiment at HIγS Relevant to Astrophysics First Nuclear Self-Absorption Experiment at HIγS Relevant to Astrophysics

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aps..dnp.ea089p&link_type=abstract

American Physical Society, 2010 Fall Meeting of the APS Division of Nuclear Physics, November 2-6, 2010, abstract #EA.089

Physics

Nuclear Physics

Scientific paper

In supernovae explosion, about 35 nuclei cannot be produced by r or s processes. These co-called p nuclei can be created by photodisintegration reactions only. Furthermore, network calculations underpredict the abundances of the p nuclei which require more precise measurements of the photo-induced reactions. The accuracy of those measurements rely on the uncertainty of the width of the levels in ^11B used as a calibration standard. These are currently known with a relative uncertainty not better than 5%. We report the results for the width of the levels at 7.285 and 8.920 MeV in ^11B from the first nuclear self-absorption experiment at the High Intensity γ-Ray Source Facility at Triangle Universities Nuclear Laboratory using monoenergetic photon beams.

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