ADOPTED LEVELS, GAMMAS for 27Ne
Author: M. Shamsuzzoha Basunia | Citation: Nucl. Data Sheets 112, 1875 (2011) | Cutoff date: 30-Nov-2010
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=1.255×104 keV 7 | S(n)= 1.51×103 keV 7 | S(p)= 1.892×104 keV 11 | Q(α)= -1.001×104 keV 12 | ||
Reference: 2012WA38 |
References: | |||
A | 9Be(28Ne,27NeG),1H(28Ne,27NeG) | B | 2H(26Ne,27NeG) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | AB | (3/2+) | 31.5 ms 13 % β- = 100 % β-n = 2.0 5 | |||||
765 1 | AB | (3/2-) | 765 1 | | 0.0 | (3/2+) | ||
885 2 | AB | (1/2+) | < 10 ps | 119 885 2 | 24 3 100 3 | D D+Q | 765 0.0 | (3/2-) (3/2+) |
E(level): From γ-ray energies
E(γ): From 2H(26Ne,27Neγ), except otherwise noted
I(γ): From 9Be(28Ne,27Neγ),1H(28Ne,27Neγ)
M(γ): Proposed in 2006Te04 ((28Ne,27Neγ),(28Ne,27Neγ)), on the basis of 119γ and 885γ branching ratio from the 885-keV level and the upper limit of the level half-life.
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
E(level) | E(gamma) | Comments |
885 | 119 | E(γ): From 9Be(28Ne,27Neγ) (2006Te04) |
Some recent nuclear structure calculations: 2006Ko02, 2004Ge02, 2004La24.
Atomic mass excess measurement: 7020 keV 70 (2007Ju03)
2010Ro23: Measured one-neutron knock out cross section for 39 neutron rich isotopes, ranging from carbon to aluminium, and with neutron numbers from 8 to 22. For 27Ne the measured one-neutron knock out cross section is 102(12) mb on a beryllium target.
Production cross section |J0.1 μb, measured from 40Ar fragmentation reactions of both 9Be(40Ar,X), E=90α MeV, and 181Ta(40Ar,X), E=94α MeV - 2007No13.
48.01 MeV/u and 41.94 MeV/u beams of 27Ne on a Si target, measured σ=2346 (39) mb and σ=2356 (37) mb, respectively, for the Si(27Ne,x) reaction (2006Kh08). α squared reduced absorption radius of r02=1.250 (14) fm2 is deduced and used to study the isospin dependence.
2005Be60: 9Be(36S,Xγ): 27Ne obtained from fragmentation of a 36S beam at 77.5 MeV/nucleon on a Be target at GANIL selected through the α spectrometer; Detector: a 74 BaF2 detector array and 4 HPGe detectors; reports the 772 (7) keV γ-ray of 27Ne.
2005Iw02: Pb,C(28Ne,27Neγ): 27Ne was identified as contaminant from the 870 keV 16 γ-ray in the Pb,C(28Ne,28Neγ) reaction. 28Ne beam was produced by fragmentation of an 40Ar beam, E=95 MeV/u, on Be target, separated in the RIPS facility at RIKEN; reports the 870 (16) keV γ-ray of 27Ne.
Q-value: Note: Current evaluation has used the following Q record 12553 65 1515 6818.92×103 10-10.01×103 11 2011AuZZ
Q-value: Q(β-)=12590 110, S(n)=1430 110, S(p)=18490 200 Q(α)=-9970 160 (2003Au03)