305 citations · 4k across the 67 of their papers we have counts for
43 papers · 1 filter
Parity-Odd and Even Trispectrum from Axion Inflation
Xuce Niu, Moinul Hossain Rahat, Karthik Srinivasan +1
The four-point correlation function of primordial scalar perturbations has parity-even and parity-odd contributions and the parity-odd signal in cosmological observations is openin…
Gravitational Wave Probes of Massive Gauge Bosons at the Cosmological Collider
Xuce Niu, Moinul Hossain Rahat, Karthik Srinivasan +1
We extend the reach of the ``cosmological collider'' for massive gauge boson production during inflation from the CMB scales to the interferometer scales. Considering a Chern-Simon…
Signatures and Detection Prospects for sub-GeV Dark Matter with Superfluid Helium
Yining You, Jordan Smolinsky, Wei Xue +4
We explore the possibility of using superfluid helium for direct detection of sub-GeV dark matter (DM). We discuss the relevant phenomenology resulting from the scattering of an in…
Resonant excitation of the axion field during the QCD phase transition
Pierre Sikivie, Wei Xue
We find that the adiabatic fluctuations produced in the primordial plasma by cosmological inflation resonantly excite the axion field during the QCD phase transition by pumping axi…
Superfluid Effective Field Theory for Dark Matter Direct Detection
Konstantin T. Matchev, Jordan Smolinsky, Wei Xue +1
We develop an effective field theory (EFT) framework for superfluid He to model the interactions among quasiparticles, helium atoms and probe particles. Our effective field t…
Z-portal Continuum Dark Matter
Csaba Csáki, Sungwoo Hong, Gowri Kurup +3
We examine the possibility that dark matter (DM) consists of a gapped continuum, rather than ordinary particles. A Weakly-Interacting Continuum (WIC) model, coupled to the Standard…