Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session MB: Quiescent Stellar Burning
2:00 PM–4:30 PM,
Saturday, October 27, 2018
Hilton
Room: Kohala 1
Chair: Frank Strieder, South Dakota School of Mines & Technology
Abstract ID: BAPS.2018.HAW.MB.9
Abstract: MB.00009 : Elastic scattering of 3He + α with SONIK*
4:00 PM–4:15 PM
Presenter:
Devin Connolly
(TRIUMF)
Authors:
Devin Connolly
(TRIUMF)
Som N Paneru
(Ohio Univ)
Jonathan Karpesky
(Colorado Sch of Mines)
Martin Alcorta
(TRIUMF)
Carl Richard Brune
(Ohio Univ)
Michael Bowry
(TRIUMF)
Barry S Davids
(TRIUMF)
Matilda Delgado
(TRIUMF)
Nicholas Esker
(TRIUMF)
Jennifer Fallis
(North Island College)
Adam Garnsworthy
(TRIUMF)
Rekam Giri
(Ohio Univ)
Uwe Greife
(Colorado Sch of Mines)
Dave Hutcheon
(TRIUMF)
Fitzpatrick Laddaran
(University of British Columbia)
Annika Lennarz
(TRIUMF)
Matthew A Lovely
(Colorado Sch of Mines)
Chris Pearson
(TRIUMF)
Chris Ruiz
(TRIUMF)
Caleb Seeman
(TRIUMF)
Elastic scattering of 3He + α is of interest in analyses of 3He(α,γ)7Be, which has broad importance in big bang nucleosynthesis and solar neutrino physics. Phenomenologically, α(3He,3He)α can be used in global R-matrix analyses to extrapolate the 3He(α,γ)7Be astrophysical S-factor (S34) to energies of astrophysical interest. With respect to solar physics, 3He(α,γ)7Be, the initial reaction in the pp-II and pp-III chains, leads to the production of 7Be and 8B. Consequently, at solar energies S34 is almost directly proportional to the flux of νe emitted in the subsequent β - decays of 7Be and 8B. Thus it is critical to know S34 to a high degree of accuracy and precision.
3He + α elastic scattering was measured using the recently commissioned Scattering of Nuclei in Inverse Kinematics (SONIK) scattering chamber, a windowless, extended gas target surrounded by an array of collimated, ion implanted silicon charged particle detectors situated at TRIUMF, ISAC-I. Experimental techniques and preliminary results will be discussed.
*The research presented was funded through the U.S. Department of Energy grant DE-FG02- 93ER40789, the Natural Sciences and Engineering Research Council of Canada and the National Research Council of Canada.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.MB.9
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