67 citations · 287 across the 13 of their papers we have counts for
14 papers
Radioactivity of Quark Nuggets
Yang Bai, Mrunal Korwar
Quark nuggets , as Fermionic non-topological solitons, could have their mass per baryon smaller than ordinary nuclei and behave as exotic nuclei with different relations of…
Late-forming black holes and the antiproton, gamma-ray, and anti-helium excesses
Mrunal Korwar, Stefano Profumo
Black holes long-lived enough to be the dark matter have temperatures below the MeV. Since Hawking evaporation is a quasi-thermal process, no GeV emission is predicted to be produc…
QCD-Collapsed Domain Walls: QCD Phase Transition and Gravitational Wave Spectroscopy
Yang Bai, Ting-Kuo Chen, Mrunal Korwar
For a discrete symmetry that is anomalous under QCD, the domain walls produced in the early universe from its spontaneous breaking can naturally annihilate due to QCD instanton eff…
Updated Constraints on Primordial Black Hole Evaporation
Mrunal Korwar, Stefano Profumo
The Hawking evaporation process, leading to the production of detectable particle species, constrains the abundance of light black holes, presumably of primordial origin. Here, we…
Near-Extremal Charged Black Holes: Greybody Factors and Evolution
Yang Bai, Mrunal Korwar
As a charged black hole reaches its extremal state via Hawking radiation, quantum effects become important for its thermodynamic properties when its temperature is below a mass gap…
IceCube at the Frontier of Macroscopic Dark Matter Direct Detection
Yang Bai, Joshua Berger, Mrunal Korwar
For a class of macroscopic dark matter models, inelastic scattering of dark matter off a nucleus can generate electromagnetic signatures with GeV-scale energy. The IceCube detector…
Cosmological Constraints on First-Order Phase Transitions
Yang Bai, Mrunal Korwar
First-order phase transitions exist in many models beyond the Standard Model and can generate detectable stochastic gravitational waves for a strong one. Using the cosmological obs…
Catalyzed Baryogenesis
Yang Bai, Joshua Berger, Mrunal Korwar +1
A novel mechanism, "catalyzed baryogenesis," is proposed to explain the observed baryon asymmetry in our universe. In this mechanism, the motion of a ball-like catalyst provides th…
Hairy Magnetic and Dyonic Black Holes in the Standard Model
Yang Bai, Mrunal Korwar
Spherically symmetric magnetic and dyonic black holes with a magnetic charge are studied in the Standard Model and general relativity. A magnetically charged black hole with…
Phenomenology of Magnetic Black Holes with Electroweak-Symmetric Coronas
Yang Bai, Joshua Berger, Mrunal Korwar +1
Magnetically charged black holes (MBHs) are interesting solutions of the Standard Model and general relativity. They may possess a "hairy" electroweak-symmetric corona outside the…
Electroweak-Symmetric Dark Monopoles from Preheating
Yang Bai, Mrunal Korwar, Nicholas Orlofsky
If the dark sector contains 't Hooft-Polyakov monopoles and a small enough dark gauge coupling, dark monopoles could be a macroscopic dark matter candidate. Its Higgs-portal coupli…
Continuous Gravitational Waves and Magnetic Monopole Signatures from Single Neutron Stars
P. V. S. Pavan Chandra, Mrunal Korwar, Arun M. Thalapillil
Future observations of continuous gravitational waves from single neutron stars, apart from their monumental astrophysical significance, could also shed light on fundamental physic…
Finite temperature Schwinger pair production in coexistent electric and magnetic fields
Mrunal Korwar, Arun M. Thalapillil
We compute Schwinger pair production rates at finite temperature, in the presence of homogeneous, concurrent electric and magnetic fields. Expressions are obtained using the semicl…
Novel Astrophysical Probes of Light Millicharged Fermions through Schwinger Pair Production
Mrunal Korwar, Arun M. Thalapillil
The extreme properties of neutron stars provide unique opportunities to put constraints on new particles and interactions. In this paper, we point out a few interesting ideas that…