Constraints on the varying electron mass and early dark energy in light of ACT DR6 and DESI DR2 and the implications for inflation

Constraints on the varying electron mass and early dark energy in light of ACT DR6 and DESI DR2 and the implications for inflation
Yo Toda, Osamu Seto
arXiv:2508.09025v1 Announce Type: new
Abstract: Primarily motivated by the Hubble tension, we analyze the varying electron mass model and axionlike early dark energy model (EDE) using baryon acoustic oscillation data from DESI DR2 data and including the recent results from ACT DR6. Our analysis indicates that $m_{e} / m_{e0} = 1.0081 pm 0.0046 $ and the energy fraction of EDE is constrained as $f_mathrm{EDE} arXiv:2508.09025v1 Announce Type: new
Abstract: Primarily motivated by the Hubble tension, we analyze the varying electron mass model and axionlike early dark energy model (EDE) using baryon acoustic oscillation data from DESI DR2 data and including the recent results from ACT DR6. Our analysis indicates that $m_{e} / m_{e0} = 1.0081 pm 0.0046 $ and the energy fraction of EDE is constrained as $f_mathrm{EDE}