Cross section measurements for $\gamma$-rays emitted in $^{86}$Kr($n, x n y p \gamma$) reactions

Absolute partial cross sections for production of discrete $\gamma$-rays using $^{86}$Kr($n, x n y p \gamma$) reactions with $x \leq 5$ and $y \leq 1$ in a total of 8 reaction channels were measured. The data were taken using the GEANIE spectrometer comprised of 20 high-purity Ge detectors with BGO escape-suppression shields. The broad-spectrum pulsed neutron beam of the Los Alamos Neutron Science Center's (LANSCE) WNR facility provided neutrons over a wide energy range. The time-of-flight technique was used to determine the incident neutron energies. Partial $\gamma$-ray cross sections have been measured for a total of 35 $\gamma$-rays and for neutron energies 1~MeV$< E_{n} <$100~MeV. Ten transitions were observed for the first time and were assigned to $^{86}$Kr as deexciting five previously known levels, among them the second and third 0$^{+}$ states, and one new level. All previously known levels of $^{86}$Kr with excitation energy up to 3.7~MeV were identified, and the new level was observed at 2917-keV excitation energy. Predictions from shell model calculations are compared with the data. Parts of these results were recently published in reference: N. Fotiades {\it et al.}, Phys. Rev. C {\bf 87}, 044336 (2013).