At mean-field level the t-J model shows a phase diagram with close analogies to the phase diagram of hole doped cuprates. An order parameter associated with the flux or d charge-density wave (d-CDW) phase competes and coexists with superconductivity at low doping showing characteristics identified with the observed pseudogap in underdoped cuprates. In addition, in the d-CDW state the Fermi surface is reconstructed toward pockets with low spectral weight in the outer part, resembling the arcs observed in angle-resolved photoemission spectroscopy experiments. However, the d-CDW requires broken translational symmetry, a fact that is not completely accepted. Including selfenergy corrections beyond the mean, field we found that the self-energy can be written as two distinct contributions. One of these (called Σ f lux ) dominates at low energy and originates from the scattering between carriers and d-CDW fluctuations in proximity to the d-CDW instability. The second contribution (called Σ Rλ ) dominates at large energy and originates from the scattering between charge fluctuations under the constraint of non double occupancy. In this paper it is shown that Σ f lux is responsible for the origin of low-energy features in the spectral function as a pseudogap and Fermi arcs. The obtained doping and temperature dependence of the pseudogap and Fermi arcs is similar to that observed in experiments. At low energy, Σ Rλ gives an additional contribution to the closure of the pseudogap.

The recent findings about two distinct quasiparticle inelastic scattering rates in angle-dependent magnetoresistance ͑ADMR͒ experiments in overdoped high-T c cuprates superconductors have motivated many discussions related to the link between superconductivity, pseudogap, and transport properties in these materials. After computing dynamical self-energy corrections in the framework of the t-J model, the inelastic scattering rate was introduced as usual. Two distinct scattering rates were obtained showing the main features observed in ADMR experiments. Predictions for underdoped cuprates are discussed. The implications of these two scattering rates on the resistivity were also studied as a function of doping and temperature and confronted with experimental measurements.