9 papers
Minimal Proton-Mass Dark Matter
Majed Khalaf, Eric Kuflik, Alessandro Lenoci +2
We present a minimal dark matter scenario: a single complex scalar carrying baryon and lepton number, with no new exact stabilizing symmetry. Its leading interaction is a dimension…
Seasons of Dark Matter Freeze-In Shaped by the Weather of the Early Universe
Francesco D'Eramo, Alessandro Lenoci, Tommaso Sassi
Quantifying the imprints of freeze-in dark matter (DM) on cosmological structures requires knowledge of its phase-space distribution. We investigate how variations in the cosmologi…
Boson Cloud Atlas: Direct mass measurements of superradiance clouds near black holes
Majed Khalaf, Eric Kuflik, Alessandro Lenoci +1
Ultralight scalars emerge naturally in several motivated particle physics scenarios and are viable candidates for dark matter. While laboratory detection of such bosons is challeng…
Probing Dark Matter-Electron Interactions with Superconducting Qubits
Yonit Hochberg, Majed Khalaf, Noah Kurinsky +2
Quantum device measurements are powerful tools to probe dark matter interactions. Among these, transmon qubits stand out for their ability to suppress external noise while remainin…
Dark Matter Freeze-In and Small-Scale Observables: Novel Mass Bounds and Viable Particle Candidates
Francesco D'Eramo, Alessandro Lenoci, Ariane Dekker
The suppression of cosmological structure at small scales is a key signature of dark matter (DM) produced via freeze-in in the low-mass regime. We present a comprehensive analysis…
Self-Gravity in Superradiance Clouds: Implications for Binary Dynamics and Observational Prospects
Hyungjin Kim, Alessandro Lenoci
Spinning black holes could produce ultralight particles via the superradiance instability. These particles form a dense cloud around the host black hole, introducing new opportunit…