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arXiv · 1406.3285

The observation of long-range three-body Coloumb effects in the decay of 16Ne

K. W Brown·R. J. Charity·L. G. Sobotka·Z. Chajecki·L. V. Grigorenko·I. A. Egorova·Yu. L. Parfenova·M. V. Zhukov·S. Bedoor·W. W. Buhro·J. M. Elson·W. G. Lynch·J. Manfredi·D. G. McNeel·W. Reviol·R. Shane·R. H. Showalter·M. B. Tsang·J. R. Winkelbauer·A. H. Wuosmaa
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Abstract

The interaction of an $E/A$=57.6-MeV $^{17}$Ne beam with a Be target was used to populate levels in $^{16}$Ne following neutron knockout reactions. The decay of $^{16}$Ne states into the three-body $^{14}$O+$p$+$p$ continuum was observed in the High Resolution Array (HiRA). For the first time for a 2p emitter, correlations between the momenta of the three decay products were measured with sufficient resolution and statistics to allow for an unambiguous demonstration of their dependence on the long-range nature of the Coulomb interaction. Contrary to previous experiments, the intrinsic decay width of the $^{16}$Ne ground state was found to be narrow ($\Gamma<60$~keV), consistent with theoretical estimates.

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K. W Brown, R. J. Charity, L. G. Sobotka, Z. Chajecki, L. V. Grigorenko, I. A. Egorova, Yu. L. Parfenova, M. V. Zhukov, S. Bedoor, W. W. Buhro, J. M. Elson, W. G. Lynch, J. Manfredi, D. G. McNeel, W. Reviol, R. Shane, R. H. Showalter, M. B. Tsang, J. R. Winkelbauer, A. H. Wuosmaa. 2014-06-12. The observation of long-range three-body Coloumb effects in the decay of 16Ne. https://doi.org/10.1103/physrevlett.113.232501

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