Conveners
Cosmology, Dark Matter
- Keith Dienes (University of Arizona)
-
Daniel Snowden-Ifft24/05/2022, 10:50
The $\nu$BDX-DRIFT experiment seeks to study CE$\nu$NS interactions and search for BSM physics using low-energy nuclear recoils at Fermilab, detailed in another talk at this conference. Background suppression is the key to the success of this endeavor. Using GENIE and Geant we have benchmarked our simulations to results from a preliminary COUPP run in the NuMI beam in 2009. Utilizing this...
Go to contribution page -
Rouzbeh Allahverdi (University of New Mexico)24/05/2022, 11:13
I show that a nonstandard cosmological history with a period of early matter domination driven by a sub-TeV visible-sector particle can arise rather naturally. This scenario involves a long-lived standard model singlet that acquires a thermal abundance at high temperatures from decays and inverse decays of a parent particle with SM charge(s), and subsequently dominates the energy density of...
Go to contribution page -
Fei Huang (ITP CAS and UC Irvine)24/05/2022, 11:36
One signature of an expanding universe is the time-variation of the cosmological abundances of its different components. For example, a radiation-dominated universe inevitably gives way to a matter-dominated universe, and critical moments such as matter-radiation equality are fleeting. In this talk, we point out that this lore is not always correct, and that it is possible to obtain a form of...
Go to contribution page -
Tim M.P. Tait (University of California, Irvine)
I will discuss the possibility that the coupling constants are dynamical quantities which take different values during early cosmological epochs. In particular, I will show that such scenarios (focused on the gauge couplings of either the SU(2) or SU(3) SM interactions) can have a profound effect on the production of dark matter through various mechanisms, resulting in different expectations...
Go to contribution page