Baryon asymmetry from Barrow entropy: theoretical predictions and observational constraints

We investigate the generation of baryon asymmetry from corrections brought about in Friedman equations due to Barrow entropy. In particular, by applying gravity-thermodynamics conjecture one obtains extra terms Friedmann that change Hubble function evolution during radiation-dominated epoch. Hence, even case standard coupling between Ricci scalar and current they can lead a non-zero asymmetry. order match observations we find exponent should lie interval $0.005 \lesssim \Delta 0.008$, which corresponds slight deviation Bekenstein-Hawking The upper bound is tighter than other observational constraints, however interesting feature present analysis obtain lower bound. Nevertheless this would disappear if Barrow-modified cosmology generated mechanisms, not related modification.