Phys.Rev. C 98, 014319 (2018)

Y.H.Zhang, P.Zhang, X.H.Zhou, M.Wang, Yu.A.Litvinov, H.S.Xu, X.Xu, P.Shuai, Y.H.Lam, R.J.Chen, X.L.Yan, T.Bao, X.C.Chen, H.Chen, C.Y.Fu, J.J.He, S.Kubono, D.W.Liu, R.S.Mao, X.W.Ma, M.Z.Sun, X.L.Tu, Y.M.Xing, Q.Zeng, X.Zhou, W.L.Zhan, S.Litvinov, K.Blaum, G.Audi, T.Uesaka, Y.Yamaguchi, T.Yamaguchi, A.Ozawa, B.H.Sun, Y.Sun, F.R.Xu

Isochronous mass measurements of T_z = -1 fp-shell nuclei from projectile fragmentation of ⁵⁸Ni

ATOMIC MASSES ⁴³Ti, ^44,44m,45V, ^46,47Cr, ^48,49Mn, ^50,51Fe, ^52,52mCo, ⁵⁴Ni, ⁵⁶Cu; measured time revolution spectra, and mass excesses using isochronous mass spectrometry (IMS) technique using Cooler Storage Ring (CSRm) at HIRFL-Lanzhou. Comparison with AME-2012 evaluation, and with predictions of several mass models. ^52,52mCo, ^44,44mV; deduced precise energies of the isomeric states from direct mass measurements, and compared with previously known values. ^52,52mCo, ⁵²Mn; deduced revised level energies in ⁵²Co from new mass measurements for ^52,52mCo and known level energies in ⁵²Mn mirror nucleus. ⁵⁶Co, ⁵⁶Cu; deduced revised ⁵⁶Cu level energies from new mass measurement for ⁵⁶Cu and using known level energies of ⁵⁶Co mirror nucleus. ⁵²Co, ⁵²Fe, ⁵²Mn, ⁵²Cr; analyzed quadratic and cubic fit coefficients of the isobaric multiplet mass equation (IMME). Discussed impact of new mass measurements on different aspects in nuclear structure. Isotopes produced in ⁹Be(⁵⁸Ni, X), E=467.91 MeV/nucleon reaction, and fragments separated using RIBLL2 separator at Lanzhou.

doi: 10.1103/PhysRevC.98.014319