In the recent years, primordial black holes (PBHs) have emerged as one of the most
interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could …

We perform a Bayesian analysis of NANOGrav 15-yr and IPTA DR2 pulsar timing residuals
and show that the recently detected stochastic gravitational-wave background is compatible …

Several pulsar timing array collaborations recently reported evidence of a stochastic
gravitational wave background (SGWB) at nHz frequencies. While the SGWB could originate …

In this work, we construct promising model-building routes towards SO (10) grand unified
theory inflation and examine their ability to explain the recent pulsar timing arrays (PTAs) …

The stochastic signal detected by pulsar timing arrays (PTAs) has raised great interest in
understanding its physical origin. Assuming the signal is a cosmological gravitational-wave …

The recently released data by pulsar timing array (PTA) collaborations have amassed
substantial evidence corroborating the existence of a stochastic signal consistent with a …

First-order phase transitions, which take place when the symmetries are predominantly
broken (and masses are then generated) through radiative corrections, produce observable …

Recently, the pulsar timing array (PTA) collaborations have reported the evidence for a
stochastic gravitational wave background (SGWB) at nano-Hertz band. The spectrum of …

Evidence for a stochastic gravitational wave background in the nHz frequency band is
recently reported by four pulsar timing array collaborations NANOGrav, EPTA, CPTA, and …

Recently, several major pulsar timing array (PTA) collaborations have assembled strong
evidence for the existence of a gravitational-wave background at frequencies around the …