144 citations · 1.2k across the 47 of their papers we have counts for
6 papers · 1 filter
Search for dark matter induced de-excitation of Ta
Björn Lehnert, Harikrishnan Ramani, Mikael Hult +4
Weak-scale dark matter particles, in collisions with nuclei, can mediate transitions between different nuclear energy levels. In particular, owing to sizeable momentum exchange, da…
Expression of Interest for the CODEX-b Detector
Giulio Aielli, Eli Ben-Haim, Roberto Cardarelli +25
This document presents the physics case and ancillary studies for the proposed CODEX-b long-lived particle (LLP) detector, as well as for a smaller proof-of-concept demonstrator de…
Direct Detection of Spin-(In)dependent Nuclear Scattering of Sub-GeV Dark Matter Using Molecular Excitations
Rouven Essig, Jesús Pérez-Ríos, Harikrishnan Ramani +1
We propose a novel direct detection concept to search for dark matter with 100~keV to 100~MeV masses. Such dark matter can scatter off molecules in a gas and transfer an $\mathcal{…
Metastable Nuclear Isomers as Dark Matter Accelerators
Maxim Pospelov, Surjeet Rajendran, Harikrishnan Ramani
Inelastic dark matter and strongly interacting dark matter are poorly constrained by direct detection experiments since they both require the scattering event to deliver energy fro…
Spin-Dependent Light Dark Matter Constraints from Mediators
Harikrishnan Ramani, Graham Woolley
A bevy of light dark matter direct detection experiments have been proposed, targeting spin-independent dark matter scattering. In order to be exhaustive, non-standard signatures t…
Pulsar Timing Probes of Primordial Black Holes and Subhalos
Jeff A. Dror, Harikrishnan Ramani, Tanner Trickle +1
Pulsars act as accurate clocks, sensitive to gravitational redshift and acceleration induced by transiting clumps of matter. We study the sensitivity of pulsar timing arrays (PTAs)…