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Phys. Rev. C 64, 055803 (2001) [9 pages]

Electric-multipole interference effects in the 12C(α,γ0)16O reaction

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C. R. Brune *
Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3255
Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308

Received 7 June 2001; published 18 October 2001

This paper investigates interference effects involving the E1 and E2 multipole contributions to the 12C(α,γ0)16O reaction. The relationships between γ-ray angular distributions, E1 and E2 capture phases, and 12C+α elastic scattering phase shifts are clarified. A detailed study of the energy- and angle-dependent effects near the 2.68-MeV resonance is presented, where a new experimental signature has been identified. In addition, the effects of center-of-mass motion and γ-ray polarization are discussed.


©2001 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.64.055803
DOI: 10.1103/PhysRevC.64.055803
PACS: 23.20.Js, 24.30.-v, 26.20.+f, 27.20.+n

* Present address: Department of Physics and Astronomy, Ohio University, Athens, OH 45701.

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