2013Su23: search for ¹⁰³Sb nuclide in Be(¹²⁴Xe,X), E(¹²⁴Xe)=345 MeV/nucleon beam produced by the cascade operation of the RBIF accelerator complex of the linear accelerators RILAC and RILAC-II and the four cyclotrons, RRC, fRC, IRC, and SRC. ¹⁰³Sb nuclei were not detected on the basis of magnetic rigidity, time-of-flight and energy loss (tof-Bρ-ΔE method) of the fragments using BigRIPS fragment separator, atomic number Z of fragment by tof and ΔE, and α/Q (atomic mass/charge state) of fragment by Bρ and tof. Time-of-flight was measured using thin plastic scintillators, ΔE by MUSIC ionization chambers, and Bρ by particle trajectory reconstructions. Experiments were performed at RIBF-RIKEN facility. Measured α/Q versus Z distributions, deduced no observation of ¹⁰³Sb nuclei. Theoretical calculations were performed using fission model based LISE⁺⁺ code, and empirical calculations were made using EPAX3.01 and EPAX2.15 codes.

Deduced particle-unbound nature of ¹⁰³Sb, a drip-line nuclide

Earlier studies:

1995Ry03 (also 1995Le14): Ni(¹¹²Sn,X),E=58, 62 MeV/nucleon; measured heavy fragments energy loss, total kinetic energy; deduced evidence for ¹⁰³Sb, estimated half-life from time-of-flight. Experiments performed at GANIL using LISE3 spectrometer.

Q-value: S(p) and Qα from 2012Wa38, S(n) from theory (1997Mo25)

Q-value: Estimated uncertainties (2012Wa38): 310 for S(n), 360 for Qα

Q-value: S(2n)=26030 (1997Mo25,theory). S(2p)=2140 420, Q(εp)=7230 300 (syst,2012Wa38)