Late-time acceleration without a vacuum term in $f(R,L_m)$ gravity: scaling deSitter dynamics and parameter constraints

Luciano Navarro-Coydán, J. Alberto Vázquez, Israel Quiros +1

We investigate late-time cosmic acceleration in $f(R,L_m)$ gravity driven by nonlinear matter contributions, focusing on the class $f(R,L_m)=R/2+c_1{L}_m+c_n{L}_m^n+c_0$ with the e…