Phys.Rev. C 108, 034608 (2023)

K.Haak, O.B.Tarasov, P.Chowdhury, A.M.Rogers, K.Sharma, T.Baumann, D.Bazin, P.C.Bender, J.Chen, A.Estrade, M.A.Famiano, D.C.Foulds-Holt, N.Fukuda, A.Gade, T.N.Ginter, R.W.Gohier, M.Hausmann, A.M.Hill, D.E.M.Hoff, L.Klankowski, E.Kwan, J.Li, S.N.Liddick, B.Longfellow, S.Lyons, C.Morse, M.Portillo, D.Rhodes, A.L.Richard, S.Samaranayake, B.M.Sherrill, M.K.Smith, M.Spieker, C.S.Sumithrarachchi, H.Suzuki, K.Wang, S.Waniganeththi, D.Weisshaar, S.Zhu

Production and discovery of neutron-rich isotopes by fragmentation of ¹⁹⁸Pt

NUCLEAR REACTIONS ⁹Be, Ni(¹⁹⁸Pt, X)¹⁸²Yb/¹⁸³Lu/¹⁸⁴Lu/¹⁸⁵Lu/¹⁸⁶Lu/¹⁸⁷Lu/¹⁸⁸Lu/¹⁸⁹Lu/¹⁸⁴Hf/¹⁸⁵Hf/¹⁸⁶Hf/¹⁸⁷Hf/¹⁸⁸Hf/¹⁸⁹Hf/¹⁹⁰Hf/¹⁹¹Hf/¹⁹²Hf/¹⁸⁵Ta/¹⁸⁶Ta/¹⁸⁷Ta/¹⁸⁸Ta/¹⁸⁹Ta/¹⁹⁰Ta/¹⁹¹Ta/¹⁹²Ta/¹⁹³Ta/¹⁸⁶W/¹⁸⁷W/¹⁸⁸W/¹⁸⁹W/¹⁹⁰W/¹⁹¹W/¹⁹²W/¹⁹³W/¹⁹⁴W/¹⁸⁷Re/¹⁸⁸Re/¹⁸⁹Re/¹⁹⁰Re/¹⁹¹Re/¹⁹²Re/¹⁹³Re/¹⁹⁴Re/¹⁹⁵Re/¹⁹⁶Re/¹⁹⁰Os/¹⁹¹Os/¹⁹²Os/¹⁹³Os/¹⁹⁴Os/¹⁹⁵Os/¹⁹⁶Os/¹⁹⁷Os/¹⁹²Ir/¹⁹³Ir/¹⁹⁴Ir/¹⁹⁵Ir/¹⁹⁶Ir/¹⁹⁷Ir/¹⁹⁸Ir, E=85 MeV/nucleon from the NSCL-MSU Coupled Cyclotron Facility (CCF); measured reaction products, particle identification spectra using A1900 fragment separator, S800 spectrograph for fragment analysis, PIN diode telescope of five silicon detectors for particle detection, γ rays using GRETINA array, and LISE⁺ Monte Carlo calculations of charge state fractions; deduced production cross sections of about 70 nuclei in Z=70-77 region. ¹⁸⁹Lu, ^191,192Hf; deduced new nuclides. ¹⁹⁰W; measured γ-ray spectrum from the emission of a 166-μs isomer. Comparison of measured production cross sections with theoretical calculations using EFAX3 and COFRA codes. Numerical values of production cross sections are listed in the Supplemental Material.

doi: 10.1103/PhysRevC.108.034608