Possible magnetic rotational band in ⁷⁷Kr

High-spin states of Kr-77 are studied via the fusion-evaporation reaction Zn-68(O-16, 2p5n)Kr-77 with the beam energy of 80 MeV provided by the Tandem accelerator at Japan Atomic Energy Agency (JAEA). The intensity of the beam is I similar to 1 pnA. In the present work, some new gamma transitions are found to constitute the new band of the proposed level scheme. It is very similar to the M1 transition from the level energy, so it is proposed that this band is the M1 band.