ADOPTED LEVELS for 16Ne

Authors: G.C. Sheu, J.H. Kelley |  Citation: ENSDF |  Cutoff date: 27-Jan-2020 

 Full ENSDF file | Adopted Levels (PDF version) 


S(p)= -131 keV 25Q(α)= -10350 keV 30
Reference: 2017WA10

References:
  A  9Be(17Ne,16Ne)  B  12C(17Ne,16Ne)
  C  16O(π+-)  D  20Ne(α,8He)

General Comments:

S(2p)=-1401 20; ΔM=23987 keV 20 (2017Wa10).

16Ne was first reported in 16O(π+-) by (1977Ho13: see 2012Th01). It is bound with respect to decay into 15F+p by 131 keV and unbound with respect to 14O+2p by 1.40 MeV. An earlier search for 2p decay radiation from 16Ne (1964Ka28) failed to find evidence of any states.

Theory:

Predictions, calculations and analyses for ground-state and excited-state parameters of 16Ne: 1972Wa07, 1975Be31, 1983Ma35, 1984An18, 1996Gr21, 1997Pa38, 1999Og11, 2002Fo11, 2004Ge02, 2006Fo16, 2006Sa29, 2009Ok01, 2009Ok03, 2010Fo06, 2010Ti02, 2011Ok01, 2011Ro50, 2012Ok03, 2013Xu15, 2015Wu07, 2016Fo09, 2016Fo11, 2016Pr01, 2018Fo04, 2019Sr02.

Few-body interactions and decays: 1962Go28, 1990Ko45, 2001Gr29, 2002Gr03, 2002Gr25, 2006Xu15, 2012Ok03, 2014Fo15, 2015Gr04, 2016Fo09, 2017Fo23, 2017Go17, 2019Ka50.






E(level)
(keV)
XREFJπ(level) T1/2(level)
   0ABCD 0+ < 80 keV
% 2p = 100
   1.77E3 3 ABCD 2+ ≤ 50 keV
   6.19E3 4 AB   2+ ≤ 100 keV
% p = 100
   8.44E3 10 A    0.32 MeV 10 
  10.83E3 20 A    0.51 MeV 23 

E(level): Level energies are deduced using 14O, 16Ne and p mass excesses from (2017Wa10: AME-2016). The literature reports a sizeable spread in measured values for the g.s. E(14O+2p) resonance energy, and use of any different g.s. energy would change the excitation energy scale.

T1/2(level): LABEL=Γ

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
   00+ < 80 keV
% 2p = 100
Decays 100% by 2p decay mode to 14O (2008Mu13).
E(level): Decays 100% by 2p decay mode to 14O (2008Mu13).
Jπ(level): From (2010Mu12,2014Br19,2015Br11). See also (2014Wa09,2015Ma09).
   1.77E32+ ≤ 50 keV Unusual correlations amongst the 14O+2p ejectiles indicate a complex interplay between direct 2p decay and sequential decay via 15F*+p (2015Br11). See also (2010Mu12).
E(level): Unusual correlations amongst the 14O+2p ejectiles indicate a complex interplay between direct 2p decay and sequential decay via 15F*+p (2015Br11). See also (2010Mu12). Decay mode not specified.
Jπ(level): From (2010Mu12,2014Br19,2015Br11).
   6.19E32+ ≤ 100 keV
% p = 100
Jπ(level): From (2009Mu09,2010Mu12). See also (2014Wa09,2015Ma09).
   8.44E3 0.32 MeV 10  E(level): Decay mode not specified.
T1/2(level): From (2015Br11).
  10.83E3 0.51 MeV 23  E(level): Decay mode not specified.
T1/2(level): From (2015Br11).

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