Fig. 3: Comparison of experimental and simulated TR-ARPES data.

a Momentum-integrated differential energy distribution curves (dEDCs), experimental (a1) and simulated (a2), at HS (HF regime). Simulated traces in a2 have been generated using the fit of the experimental transient T_e shown in Fig. 2b, and assuming \(\Gamma ({{\rm{T}}}_{{\rm{e}}})\ =\ C\cdot {\xi }_{spin}^{-1}({{\rm{T}}}_{{\rm{e}}})\) as in ref. ³³ (C ~ 1.9 a eV, where a is the unit cell size, details in Supplementary Discussion E, F). b Experimental (b1) and simulated (b2) dEDCs along the near-nodal direction (green line, LF), and at HS (black and red lines for LF and HF, respectively), at τ = +0.6 ps. c Simulated dEDCs at HS assuming as initial values before the arrival of the pump Δ_PG = η = Γ₀ = 85 meV and T = 50 K, and as final values after the arrival of the pump T = 130 K, Δ_PG → 0 (gap closure, black line), or Γ = 2.5 ⋅ Γ₀ (gap filling, red line), respectively (with the other parameters left unchanged, in each of these two cases). d Simulated photoemission intensity at the HS, ω = −50 ± 10 meV, as a function of the electronic temperature (black dashed line). The green line is the inverse of ξ_spin, obtained from ref. ²⁴ as discussed in Fig. 2d.