Conveners
Dark Sector Models
- Rachel Houtz (IPPP Durham)
The dark sector may be as rich and varied as the standard model. Twin Higgs models, which explain the little hierarchy problem, provide a compelling and predictive realization of such a dark sector, where the standard model field content is copied in a hidden sector. I show how the spontaneous breaking of twin color can naturally lead to asymmetric flavored dark matter and baryogenesis in...
The weak mixing angle is to be measured in the P2 experiment with elastic electron-proton and eletron-$^{12}$C scattering. If there is a (light) $Z'$ boson with parity-violating couplings to the standard model (SM) fermions, it will contribute additional parity violation to the P2 measurements. For the non-chiral $Z'$ scenarios, it is found that the P2 experiment can probe a coupling as small...
Evidence from different cosmological probes have lead to the establishment of the dark matter and dark energy paradigm. The fundamental physical origin of these phenomena remain unknown to date. Challenging this model with high-precision measurements is key in guiding theoretical models.
In my talk, I will describe how we use the phenomena of strong gravitational to constrain the physical...
We investigate solutions to the flavor anomalies in B decays and the anomalous magnetic moment of the muon based on loop diagrams of a "split" dark sector. This is characterized by the simultaneous presence of heavy particles at the TeV scale and light particles around and below the B-meson mass scale. We show that viable parameter space exists for solutions based on penguin diagrams with a...
I report on an ongoing investigation of how a hidden ‘dark’ confining gauge sector, common in Hidden Valley models such as the Mirror Twin Higgs, could lead to novel signatures in indirect detection searches for dark matter. Dark matter annihilation can then lead to dark showers of multiple and various hadrons, distinct from particle pair production. If there are no light fermions charged...
Abstract: Axion-like particles (ALPs) are pseudo-Nambu-Goldstone bosons of spontaneously broken global symmetries in theories attempting to address the incompleteness of the Standard Model (SM). In particular, ALPs arise in theoretical resolutions to the strong CP problem, offer explanations for the dark matter (DM) relic abundance, and are ubiquitous in string theory. The ALP mass $m_a$ can...
