activity
20172021
most citedPulsar Timing Probes of Primordial Black Holes and Subhalos

113 citations · 124 across the 4 of their papers we have counts for

collaborators

15 papers

hep-ph2021

Low-Energy Signals from the Formation of Dark Matter-Nuclear Bound States

Asher Berlin, Hongwan Liu, Maxim Pospelov +1

Dark matter particles may bind with nuclei if there exists an attractive force of sufficient strength. We show that a dark photon mediator of mass MeV that kineti…

hep-ph2021

Millicharged dark matter detection with ion traps

Dmitry Budker, Peter W. Graham, Harikrishnan Ramani +3

We propose the use of trapped ions for detection of millicharged dark matter. Millicharged particles will scatter off the ions, giving a signal either in individual events or in th…

hep-ph2020

Earth-bound Milli-charge Relics

Maxim Pospelov, Harikrishnan Ramani

Dark sector particles with small electric charge, or millicharge, (mCPs) may lead to a variety of diverse phenomena in particle physics, astrophysics and cosmology. Assuming their…

hep-ph2020

A Composite Solution to the Neutron Bottle Anomaly

Surjeet Rajendran, Harikrishnan Ramani

Measurements of the lifetime of neutrons trapped in a bottle have been consistently shorter than the lifetime measured in neutron beam experiments. With trapping potentials as low…

hep-ph2020

Muon g-2 and EDM experiments as muonic dark matter detectors

Ryan Janish, Harikrishnan Ramani

The detection of ultralight dark matter through interactions with nucleons, electrons, and photons has been explored in depth. In this work we propose to use precision muon experim…

astro-ph.CO2020

Observability of Dark Matter Substructure with Pulsar Timing Correlations

Harikrishnan Ramani, Tanner Trickle, Kathryn M. Zurek

Dark matter substructure on small scales is currently weakly constrained, and its study may shed light on the nature of the dark matter. In this work we study the gravitational eff…