activity
20202026
most citedClassical Cosmological Collider Physics and Primordial Features

50 citations · 296 across the 21 of their papers we have counts for

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9 papers · 1 filter

hep-ph2026

Searching for heavy charged relics in the Earth

Reza Ebadi, Peter W. Graham, Surjeet Rajendran +2

We propose a method for detecting an ambient density of heavy, electrically-charged particles. Such particles would impact the Earth, lose energy in terrestrial matter, and become…

hep-ph2025

Rydberg Single Photon Detection for Probing 0.1-10 meV Dark Matter with BREAD

Abhishek Banerjee, Reza Ebadi, Surjeet Rajendran

We introduce a Rydberg-based single photon detector (SPD) for probing dark matter in the 0.1-10 meV mass range (20 GHz-2 THz). The Rydberg SPD absorbs photons produced and focused…

hep-ph2025

Gravothermal Pile-Up of Collisional Dark Matter Around Compact Objects

Reza Ebadi, Erwin H. Tanin

The dark matter may consist of multiple species that interact differently. We show that a species that is cosmologically subdominant but highly collisional can pile up and become d…

hep-ph2023★ 4 cited

GALILEO: Galactic Axion Laser Interferometer Leveraging Electro-Optics

Reza Ebadi, David E. Kaplan, Surjeet Rajendran +1

We propose a novel experimental method for probing light dark matter candidates. We show that an electro-optical material's refractive index is modified in the presence of a cohere…

hep-ph2023

Spectral distortions of astrophysical blackbodies as axion probes

Jae Hyeok Chang, Reza Ebadi, Xuheng Luo +1

Recent studies reveal that more than a dozen of white dwarfs displaying near-perfect blackbody spectra in the optical range have been lurking in the Sloan Digital Sky Survey catalo…

hep-ph2022★ 50 cited

Classical Cosmological Collider Physics and Primordial Features

Xingang Chen, Reza Ebadi, Soubhik Kumar

Features in the inflationary landscape can inject extra energies to inflation models and produce on-shell particles with masses much larger than the Hubble scale of inflation. This…

hep-ph2022★ 40 cited

Snowmass2021 Cosmic Frontier: The landscape of low-threshold dark matter direct detection in the next decade

Rouven Essig, Graham K. Giovanetti, Noah Kurinsky +90

The search for particle-like dark matter with meV-to-GeV masses has developed rapidly in the past few years. We summarize the science case for these searches, the recent progress,…

hep-ph2022★ 49 cited

Snowmass2021 Cosmic Frontier White Paper: Ultraheavy particle dark matter

Daniel Carney, Nirmal Raj, Yang Bai +25

We outline the unique opportunities and challenges in the search for "ultraheavy" dark matter candidates with masses between roughly and the Planck scale $m_{\rm pl}…

hep-ph2021★ 30 cited

Ultra-Heavy Dark Matter Search with Electron Microscopy of Geological Quartz

Reza Ebadi, Anubhav Mathur, Erwin H. Tanin +8

Self-interactions within the dark sector could clump dark matter into heavy composite states with low number density, leading to a highly suppressed event rate in existing direct d…