English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

We entertain the possibility that primordialblack holes of mass $\sim(10^{26}$--$10^{29})$~g, with Schwarzschild radii of $\mathcal{O}{\text{cm}}$,constitute $\sim 10\%$ or more of cosmic dark matter, as allowed by variousconstraints. These black holes would typically originate from cosmological erascorresponding to temperatures $\mathcal{O}{10-100}$~GeV, and may be associatedwith first order phase transitions in the visible or hidden sectors. In casethese small primordial black holes get captured in orbits around neutron starsor astrophysical black holes in our galactic neighborhood, gravitational wavesfrom the resulting "David and Goliath (D\&G)" binaries could be detectable atAdvanced LIGO or Advanced Virgo for hours or more, possibly over distances of$\mathcal{O}{10}$~Mpc encompassing the Local Supercluster of galaxies. Theproposed Einstein Telescope would further expand the reach for these signals. Apositive signal could be further corroborated by the discovery of new particlesin the $\mathcal{O}{10-100}$~GeV mass range, and potentially also the detectionof long wavelength gravitational waves originating from the first order phasetransition era.

Gravitational Waves from Primordial Black Holes and New Weak Scale Phenomena