Cayuso, RamiroGray, FinnianKubizňák, DavidMargalit, AoibheannSouza, Renato Gomes [UNESP]Thiele, Leander2019-10-062019-10-062019-08-10Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 795, p. 650-656.0370-2693http://hdl.handle.net/11449/189377Many black hole spacetimes with a 3-form field exhibit a hidden symmetry encoded in a torsion generalization of the principal Killing–Yano tensor. This tensor determines basic properties of such black holes while also underlying the separability of the Hamilton–Jacobi, Klein–Gordon, and (torsion-modified) Dirac field equations in their background. As a specific example, we consider the Chong–Cvetič–Lü–Pope black hole of D=5 minimal gauged supergravity and show that the torsion-modified vector field equations can also be separated, with the principal tensor playing a key role in the separability ansatz. For comparison, separability of the Proca field in higher-dimensional Kerr–NUT–AdS spacetimes (including new explicit formulae in odd dimensions) is also presented.650-656engPrincipal tensor strikes again: Separability of vector equations with torsionArtigo10.1016/j.physletb.2019.07.007Acesso aberto2-s2.0-85068540808