[en] We report on the recent progress within the Geant4 electromagnetic physics subpackages. Several new interfaces and models recently introduced are already used in LHC applications and may be useful for any type of simulation. Significant developments were carried out to improve the user interface, develop models of single and multiple scattering, and validate high energy models. Part of these developments are included in the Geant4 10.2 release and the full set are available in the new version 10.3 of December, 2016. (paper)

[en] The first excited $3_1^{-<!--\; ???\; -->}$ level of ⁹⁶Mo was investigated in a high-statistics experiment using the ⁹⁵Mo(n, γγ) cold neutron capture reaction. The measurements used the high cold neutron flux from the research reactor at Institut Laue-Langevin and employed the highly-efficient EXILL array to detect γ-ray coincidences. The recorded statistics allow identification of decay branches with only a small relative intensity including the $3_1^{-<!--\; ???\; -->}\to <!--\; ???\; -->0_{gs}^{+}$ E3 decay. With the knowledge of the newly measured branching ratio and the known $B(E3,3_1^{-<!--\; ???\; -->}\to <!--\; ???\; -->0_{gs}^{+})$ transition probability, the lifetime of the $3_1^{-<!--\; ???\; -->}$ level was determined and, subsequently, the $B(E1)$ strength of the other decay branches of the $3_1^{-<!--\; ???\; -->}$ octupole phonon were calculated. The extracted electromagnetic decay strengths are compared to the systematics of the stable even–even molybdenum isotopes and values calculated in a Skyrme-force based quasiparticle random phase approximation and in a cluster approach. Additionally, the $3_1^{-<!--\; ???\; -->}\to <!--\; ???\; -->2_{iv}^{+}$ decay branch to the low-lying $2_{iv}^{+}$ quadrupole isovector level was observed. (paper)