Journal
PHYSICAL REVIEW LETTERS
Volume 129, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.129.012501
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Funding
- Spanish Ministerio de Ciencia, Innovacion y Universidades
- Xunta de Galicia (Centro singular de investigacion de Galicia accreditation 2019-2022)
- European Union ERDF
- Maria de Maeztu Units of Excellence program [MDM-2016-0692]
- Spanish Research State Agency
- Spanish Ministerio de Economia y Competitividad through the Programmes Ramon y Cajal [RYC2019-028438-I]
- Department of Energy National Nuclear Security Administration through the Nuclear Science and Security Consortium [DENA0003180, DE-NA0000979]
- National Science Foundation, USA [PHY2012040, PHY-1565546, PHY-1913554]
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-SC0020451, DE-AC02-06CH11357]
- U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
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A narrow near-threshold proton-emitting resonance (E-x = 11.4 MeV, J(pi) = 1/2(+), and Gamma(p) = 4.4 keV) was directly observed in B-11 via proton resonance scattering. The good agreement between both experimental results confirms the existence of such exotic decay and the particular behavior of weakly bound nuclei coupled to the continuum.
A narrow near-threshold proton-emitting resonance (E-x = 11.4 MeV, J(pi) = 1/2(+), and Gamma(p) = 4.4 keV) was directly observed in B-11 via proton resonance scattering. This resonance was previously inferred in the beta-delayed proton emission of the neutron halo nucleus Be-11. The good agreement between both experimental results serves as a ground to confirm the existence of such exotic decay and the particular behavior of weakly bound nuclei coupled to the continuum. R-matrix analysis shows a sizable partial decay width for both, proton and alpha (Gamma(alpha) = 11 keV) emission channels.
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