  Beta-decay properties of neutron-rich Ca, Ti, and Cr isotopes are studied
within a deformed proton-neutron quasiparticle random-phase approximation. The
underlying mean field is described self-consistently from deformed Skyrme
Hartree-Fock calculations with pairing correlations. Residual spin-isospin
interactions in the particle-hole and particle-particle channels are also
included in the formalism. The energy distributions of the Gamow-Teller
strength, the beta-decay feedings, the beta-decay half-lives, and the
beta-delayed neutron emission probabilities are discussed and compared with
other theoretical results, as well as with the available experimental
information. The evolution of these nuclear beta-decay properties is
investigated in isotopic chains in a search for structural changes. A reliable
estimate of the beta-decay properties in this mass region is a valuable
information for evaluating decay rates in astrophysical scenarios.
