ADOPTED LEVELS for 284Cn
Author: Balraj Singh | Citation: Nucl. Data Sheets 156, 148 (2019) | Cutoff date: 31-Jan-2019
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-4050 keV SY | S(n)= 7010 keV SY | S(p)= 4020 keV SY | Q(α)= 9600 keV SY | ||
| Reference: 2017WA10 |
| References: | |||
| A | 288Fl α decay (0.64 S) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0 | A | 0+ | 108 ms +20-14 % SF = 100 % α ≤ 3 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | 108 ms +20-14 % SF = 100 % α ≤ 3 | Only the SF decay mode has been observed. Other: 2017Ka66 estimate %α=2.9 from one of the two interpretations of Chain #3, where SF events are 32 times higher than the α events from the decay of 284Cn. E(level): Only the SF decay mode has been observed. Other: 2017Ka66 estimate %α=2.9 from one of the two interpretations of Chain #3, where SF events are 32 times higher than the α events from the decay of 284Cn. |
284Cn has been identified through the α decay of 288Fl; see 288Fl Adopted Levels for details of correlated events of EVR, α decay, and ending in SF decay of 284Cn. Main references for direct production of 288Fl are: 2004Og07, 2004Og12, 2010Ei01, 2010Du06, 2011Ga19 and 2014Ya33. Also 288Fl is produced as α daughter of 292Lv. See 292Lv Adopted Levels for the production of 292Lv reported in 2004Og12, 2004OgZZ and 2012Ho12, See also 2017Og01, 2016Ho09, 2015Og07 and 2015Og05 review articles.
2017Ka66 (also 2014MoZV): three correlated events were reported in 248Cm(48Ca,4n),E=261.6 MeV reaction using RIKEN Linear Accelerator (RILAC) and gas-filled recoil ion separator (GARIS). Two EVR-α-α-SF correlated events and the following one tentative EVR-α-α-α-SF event were observed, all starting from 292Lv, with production σ=3.1 pb +28-18. All three events produced 284Cn. See 292Lv Adopted Levels for details
For theoretical studies, consult Nuclear Science References (NSR) database at NNDC, BNL for 118 primary references dealing with the half-lives and other aspects of nuclear structure in this mass region
Q-value: Estimated uncertainties (2017Wa10): ΔQ(β-)=970, ΔS(n)=1010, ΔS(p)=1070, ΔQ(α)=200.
Q-value: S(2n)=12570 1040 (syst, 2017Wa10). S(2p)=7130 (theory,1997Mo25)