Gamma-ray lines from ${}^{103}\mathrm{Sn}$ have been identified for the first time using EUROBALL and ancillary detectors. The level scheme of ${}^{103}\mathrm{Sn}$ has been established by means of particle-gated γγ coincidences. The energy spacing between the $g_{7/2}$ and $d_{5/2}$ neutron single-particle orbitals is determined from the excited states in ${}^{103}\mathrm{Sn}.$

• Received 26 May 2000

DOI:https://doi.org/10.1103/PhysRevC.63.021307