Phys.Rev. C 103, 014608 (2021)

R.Prajapat, M.Maiti, D.Kumar

Fusion-fission events in the ¹¹B + ¹⁸¹Ta reaction up to 5.7 MeV/nucleon energy

NUCLEAR REACTIONS ¹⁸¹Ta(¹¹B, 6n)¹⁸⁶Pt, (¹¹B, 5n)¹⁸⁷Pt, (¹¹B, 4n)¹⁸⁸Pt, (¹¹B, 3n)¹⁸⁹Pt, (¹¹B, 5np)¹⁸⁶Ir/^186mIr, (¹¹B, 4np)¹⁸⁷Ir, (¹¹B, 3np)¹⁸⁸Ir, (¹¹B, 5nα)^183mOs, (¹¹B, F)²⁴Na/^34mCl/⁶⁶Ge/^74mBr/⁸³Br/⁷⁷Kr/^87mSr/⁹⁰Mo/^97mRh/¹⁰³Cd/¹⁰⁸In/¹⁰⁹In/^110mIn/¹¹⁵Ag/¹²³Xe/¹²⁹Sb/¹³⁰Sb/¹³¹La/¹³⁷Nd/^139mNd/¹⁴⁹Nd/^160mHo, E=53.5, 54.9, 56.6, 58.7, 59.6, 62.4 MeV; measured activation σ(E) by off-line Eγ, Iγ measurements at 14UD BARC-TIFR Pelletron facility; deduced σ(E) of residues and fission fragments, complete and incomplete fusion evaporation σ(E), isotopic, isobaric and isomeric yields as function of beam energy, isomeric cross-section ratios, preequilibrium (PEQ) reaction strength in ¹⁸¹Ta(¹¹B, 3n)¹⁸⁹Pt, and compared with experimental data for other reaction systems. Comparison with theoretical calculations using statistical model codes EMPIRE3.2.2, and PACE4. Comparison of measured isotopic yield distributions for ¹⁸¹Ta, ²³²Th, ²³⁸U(¹¹B, F), ¹⁸¹Ta(¹⁶O, F), ¹⁶⁹Tm(¹⁹F, F), and ²³⁸U(²²Ne, F). Comparison of measured reduced fusion excitation functions for ¹⁵⁹Tb, ¹⁸¹Ta, ²⁰⁹Bi(¹¹B, X), ¹⁵⁹Tb, ¹⁸¹Ta(¹²C, X), and ^174,176Yb(¹⁶O, X).

doi: 10.1103/PhysRevC.103.014608