Author

Nayan Das

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Preprint Oct 2026

An early $Z'$ dominance: dark matter, gravitational waves&collider probes

In the minimal anomaly-free gauged B$-$L extension of the Standard Model (SM), we consider a scenario in which the energy density of the new Abelian gauge boson dominates the Universe prior to big bang nucleosynthesis (BBN), resulting in an early matter-dominated (EMD) era. Taking one of the three right-handed neutrino...

B. Barman, Nayan Das, Partha Kumar Paul et al. · 0 citations