Search for resonant enhancement of the $^7$Be+d reaction

ORAL

Abstract

$^7$Li abundances in the early universe extrapolated from observations are several standard deviations lowers than that produced by Big Bang Nucleosynthesis calculations constrained by WMAP. Since most $^7$Li is produced by the beta decay of $^7$Be, one proposed solution to this mystery is a resonant enhancement of the $^7$Be($d,p$)2$\alpha$ reaction rate via the 5/2$^+$ 16.7 MeV state in $^9$B. The $^7$Be($d,d$) reaction was done at Oak Ridge National Laboratory to search for such a resonance. This was performed in inverse kinematics using a 10 MeV $^7$Be beam and a thick CD$_2$ target. Experimental data will be shown and results will be discussed.

*Work supported by U.S. DOE, NSF, and NNSA SSGF

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Authors

  • B.M. Moazen

    • Lousiana State University

  • W.A. Peters

  • I. Spassova

    • Oak Ridge Associated Universities

  • M. Matos

  • P.D. OMalley

  • A. Adekola

  • J.A. Cizewski

  • M.E. Howard

  • S.Y. Strauss

    • Rutgers University

  • D.W. Bardayan

  • K.Y. Chae

  • C.D. Nesaraja

  • S.D. Pain

  • M.S. Smith

    • Oak Ridge National Laboratory

  • S. Ahn

  • K.L. Jones

  • S.T. Pittman

  • K.T. Schmitt

    • University of Tennessee, Knoxville

  • S. Graves

  • R.L. Kozub

  • J.F. Shriner Jr.

  • J.L. Wheeler

    • Tennessee Technological University