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19922026
most citedSolutions to the strong CP problem in a world with gravity

477 citations · 2.5k across the 127 of their papers we have counts for

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Showing 2020Show all

6 papers · 1 filter

hep-ph2020

Flipped Quartification and a composite -quark

James B. Dent, Thomas W. Kephart, Heinrich Päs +1

An alternative "flipped" version of the quartification model is obtained by rearrangement of the particle assignments. The model has two standard (trinification) families and one f…

gr-qc2020★ 7 cited

The Sound of Clearing the Throat: Gravitational Waves from a Black Hole Orbiting in a Wormhole Geometry

James B. Dent, William E. Gabella, Kelly Holley-Bockelmann +1

Current ground-based gravitational wave detectors are tuned to capture the collision of compact objects such as stellar origin black holes and neutron stars; over 20 such events ha…

hep-ph2020★ 3 cited

Stimulated Radiation from Axion Cluster Evolution in Static Spacetimes

Liang Chen, Thomas W. Kephart

If their number density is high enough, clusters of axions can decay to photons via stimulated emission. We study both the special and general relativistic corrections to lasing in…

hep-ph2020★ 5 cited

Photon directional profile from stimulated decay of axion clouds with arbitrary axion spatial distributions

Liang Chen, Thomas W. Kephart

We model clusters of axions with spherically symmetric momentum but arbitrary spatial distributions and study the directional profile of photos produced in their evolution through…

gr-qc2020★ 21 cited

Superradiant pion clouds around primordial black holes

Paulo B. Ferraz, Thomas W. Kephart, João G. Rosa

We show that highly spinning primordial black holes of mass kg, potentially born in a matter-dominated era after inflation, can produce clouds of pions in their vic…

hep-ph2020★ 6 cited

Photon directional profile from stimulated decay of axion clouds with arbitrary momentum distributions

Liang Chen, Thomas W. Kephart

We model clusters of axions with spherically symmetric spacial but arbitrary momentum distributions and study the directional profile of photos produced in their evolution through…