5 papers
Axi-Higgs Cosmology
Leo WH Fung, Lingfeng Li, Tao Liu +3
If the electroweak Higgs vacuum expectation value in early universe is higher than its present value GeV, the Li puzzle in BBN and the CMB/CDM tens…
Wave Dark Matter and Ultra Diffuse Galaxies
Alvaro Pozo, Tom Broadhurst, Ivan De Martino +4
Dark matter as a Bose-Einstein condensate, such as the axionic scalar field particles of String Theory, can explain the coldness of dark matter on large scales. Pioneering simulati…
Ghostly Galaxies as Solitons of Bose-Einstein Dark Matter
Tom Broadhurst, Ivan de Martino, Hoang Nhan Luu +2
The large dark cores of common dwarf galaxies are unexplained by the standard heavy particle interpretation of dark matter. This puzzle is exacerbated by the discovery of a very la…
Multiple Ultralight Axionic Wave Dark Matter and Astronomical Structures
Hoang Nhan Luu, S. -H. Henry Tye, Tom Broadhurst
An ultralight scalar boson with mass eV is gaining credence as a Dark Matter (DM) candidate that explains the dark cores of dwarf galaxies as soliton waves. S…
A Soliton Solution for the Central Dark Masses in 47- Tuc Globular Cluster and Implications for the Axiverse
Razieh Emami, Tom Broadhurst, George Smoot +2
We offer a standing wave explanation for the rising proper motions of stars at the center of the globular cluster 47-Tucanae, amounting to of the total mass. We sho…