output
20142023
most citedFirst M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon

683 citations

Showing 2020 · hep-phShow all

5 papers · 2 filters

hep-ph2020★ 22 cited

Trapping Effect for QCD Axion Dark Matter

Shota Nakagawa, Fuminobu Takahashi, Masaki Yamada

In the early universe, the potential of a scalar field can be significantly modified, and the scalar field may be trapped for a long time in a different location than the current v…

hep-ph2020★ 20 cited

What if ALP dark matter for the XENON1T excess is the inflaton

Fuminobu Takahashi, Masaki Yamada, Wen Yin

The recent XENON1T excess in the electron recoil data can be explained by anomaly-free axion-like particle (ALP) dark matter with mass keV and the decay constan…

hep-ph2020★ 43 cited

Primordial Black Holes from QCD Axion Bubbles

Naoya Kitajima, Fuminobu Takahashi

We propose a scenario in which a strong Peccei-Quinn (PQ) symmetry breaking in the early universe results in large inhomogeneities of the initial QCD axion field value, leading to…

hep-ph2020★ 89 cited

XENON1T excess from anomaly-free ALP dark matter and its implications for stellar cooling anomaly

Fuminobu Takahashi, Masaki Yamada, Wen Yin

Recently, an anomalous excess was found in the electronic recoil data collected at the XENON1T experiment. The excess may be explained by an axion-like particle (ALP) with mass of…

hep-ph2020★ 1 cited

Strongly-interacting massive particle and dark photon in the era of intensity frontier

Ayuki Kamada, Masaki Yamada, Tsutomu T. Yanagida

A strongly interacting massive particle (SIMP) is an interesting candidate for dark matter (DM) because its self-interaction cross section can be naturally strong enough to address…