147 citations · 434 across the 17 of their papers we have counts for
18 papers
Late-time Quantum Vacuum Decay and its Cosmological Implications
Yang Bai, Sida Lu, Nicholas Orlofsky
The existence of a landscape of metastable vacua raises the possibility that our Universe may have undergone quantum vacuum decay at late times. This work explores how such a trans…
Sub-GeV Right-Handed Neutrino as a Probe of Neutrino Mass Generation in the Minimal Left-Right Symmetric Model
Gang Li, Ying-Ying Li, Sida Lu +1
The minimal left-right symmetric model (mLRSM) provides an elegant and testable framework for addressing the origin of neutrino masses. We examine the constraints on the sub-GeV ri…
Dark Photon Polarimetry
Fiesta Ting Yan Leung, Tao Liu, Sida Lu +3
We propose detecting dark photons (DP), a major candidate for wave dark matter, through polarimetry. The DP can modify Maxwell's equations due to its kinetic mixing with regular ph…
Gravitational Waves From Dark Binaries With Finite-Range Dark Forces
Yang Bai, Sida Lu, Nicholas Orlofsky
This paper calculates the stochastic gravitational wave background from dark binaries with finite-range attractive dark forces, complementing previous works which consider long-ran…
Gravitational Waves From More Attractive Dark Binaries
Yang Bai, Sida Lu, Nicholas Orlofsky
The detection of gravitational waves (GWs) has led to a deeper understanding of binaries of ordinary astrophysical objects, including neutron stars and black holes. In this work, w…
Challenges in Interpreting the NANOGrav 15-Year Data Set as Early Universe Gravitational Waves Produced by ALP Induced Instability
Michael Geller, Subhajit Ghosh, Sida Lu +1
In this paper, we study a possible early universe source for the recent observation of a stochastic gravitational wave background at the NANOGrav pulsar timing array. The source is…
Dark Exoplanets
Yang Bai, Sida Lu, Nicholas Orlofsky
The prevailing assumption is that all exoplanets are made of ordinary matter. However, we propose an unconventional possibility that some exoplanets could be made of dark matter, w…
Origin of nontopological soliton dark matter: solitosynthesis or phase transition
Yang Bai, Sida Lu, Nicholas Orlofsky
This work demonstrates that nontopological solitons with large global charges and masses, even above the Planck scale, can form in the early universe and dominate the dark matter a…
Q-Monopole-Ball: A Topological and Nontopological Soliton
Yang Bai, Sida Lu, Nicholas Orlofsky
Magnetic monopoles and Q-balls are examples of topological and nontopological solitons, respectively. A new soliton state with both topological and nontopological charges is shown…
B-modes from Post-inflationary Gravitational Waves Sourced by Axionic Instabilities at Cosmic Reionization
Michael Geller, Sida Lu, Yuhsin Tsai
We show that axion-like particles that only couple to invisible dark photons can generate visible B-mode signals around the reionization epoch. The axion field starts rolling short…
Searching for Magnetic Monopoles with the Earth's Magnetic Field
Yang Bai, Sida Lu, Nicholas Orlofsky
Magnetic monopoles have long been predicted in theory and could exist as a stable object in our universe. As they move around in galaxies, magnetic monopoles could be captured by a…
Tests of Dark MACHOs: Lensing, Accretion, and Glow
Yang Bai, Andrew J. Long, Sida Lu
Dark matter could take the form of dark massive compact halo objects (dMACHOs); i.e., composite objects that are made up of dark-sector elementary particles, that could have a macr…
Dark Quark Nuggets
Yang Bai, Andrew J. Long, Sida Lu
"Dark quark nuggets", a lump of dark quark matter, can be produced in the early universe for a wide range of confining gauge theories and serve as a macroscopic dark matter candida…
Hexapod Coloron at the LHC
Yang Bai, Sida Lu, Qian-Fei Xiang
Instead of the usual dijet decay, the coloron may mainly decay into its own "Higgs bosons", which subsequently decay into many jets. This is a general feature of the renormalizable…
Measuring the Black Hole Mass Spectrum from Redshifts of aLIGO Binary Merger Events
Yang Bai, Vernon Barger, Sida Lu
The binary black hole merger events observed by the Advanced LIGO (aLIGO) and VIRGO collaboration can shed light on the origins of black holes. Many studies based on black hole ste…
Supersymmetric Resonant Dark Matter: a Thermal Model for the AMS-02 Positron Excess
Yang Bai, Joshua Berger, Sida Lu
We construct a thermal dark matter model with annihilation mediated by a resonance to explain the positron excess observed by PAMELA, Fermi-LAT and AMS-02, while satisfying constra…
Beauty-full Tetraquarks
Yang Bai, Sida Lu, James Osborne
In this article we present a calculation of the tetraquark ground-state energy using a diffusion Monte Carlo method to solve the non-relativistic many-body syste…
Three Twin Neutrinos: Evidence from LSND and MiniBooNE
Yang Bai, Ran Lu, Sida Lu +2
We construct a neutrino model of three twin neutrinos in light of the neutrino appearance excesses at LSND and MiniBooNE. The model, which includes a twin parity, naturally predict…