1981Mu12: first identification using ²⁰⁶Pb(⁴⁰Ar,3n) with E(⁴⁰Ar)=194 MeV. Assignment of 8546-MeV α activity to ²⁴³Fm was made based on the arguments that ⁴⁰Ar bombarding energy was chosen to maximize for 3n channel, and that the observed α activity could not be assigned to any other nucleus.

2008Kh10: ²⁰⁶Pb(⁴⁰Ar,3n) with E(⁴⁰Ar)=180-204 MeV. Evaporation residues (Er) separated with the velocity filter SHIP and implanted into a position-sensitive Si detector. Fm isotopes identified through tof and Er-α and Er-SF correlations. Measured Eα, Iα, Er-α(t), Er-SF(t) using 7 position-sensitive Si detectors (implantation detector and 6 additional Si detectors mounted in the backward hemisphere); deduced T_1/2 and branching. γ-rays measured with an HPGe clover detector; no isomers were identified.

Theoretical calculations:

2013Zd01: T_1/2 for α decay calculated with phenomenological model based on Gamow theory with WKB approximation for Coulomb barrier penetration .

2011Ad15: calculations for one-quasi particle states

2001Mo07: calculations of T_1/2 for α decay

1985Cw01: fission barrier calculations

1984Ga06: calculations of fusion barrier for the (²⁰⁶Pb + ⁴⁰Ar) system.

1982Il01: calculations of ²⁰⁶Pb(⁴⁰Ar,3n)²⁴³Fm production cross sections

1978Po09: calculations of spontaneous fission half-lives

1975Te01: T_1/2(SF) estimated from data on fission activities following the ²⁰⁶Pb(⁴⁰Ar,xn) reaction and calculated excitation functions.

1973Ta30: partial half-life for T_1/2(ε decay) calculated from β gross theory.

Q-value: ΔS(n)=455; ΔS(p)=334 (2012Wa38).

Q-value: S(2n)=15905 syst 368; S(2p)=4541 syst 272; Q(εp)=2688 syst 216 (2012Wa38)