Beyond The Standard Model

The Standard Model of particle physics is amazingly successful, yet it leaves many basic questions unanswered.  From bizarre, unexplained parameters such as the cosmological constant, Higgs mass, or neutron electric dipole moment to the lack of explanation for observed phenomena such as dark matter and baryogenesis, there is strong evidence that the Standard Model must be extended.  At SITP we have focused on finding solutions to these open problems to discover what these hints tell us about the underlying laws of physics.

Video Briefs

Dark matter self interactions can leave distinctive signatures on the properties of satellite…

I construct a landscape of vacua of string theory and study the resulting ensemble of N-axion…

Related News

Crucial measurements were made at the Super-Kamiokande neutrino detector in Japan

Takaaki Kajita and Arthur McDonald led two teams which made key observations of the particles inside big underground instruments in Japan…

Slowly gathering energy 

Pascal Boegli/Getty

Kicking the world’s largest machine into overdrive is turning out to be harder than expected. Researchers at the Large Hadron Collider…

Last night the Operations team for the Large Hadron Collider (LHC) successfully circulated a beam at 6.5 teralectronvolts…

Related Events

Any dark matter spikes surrounding black holes in our Galaxy are sites of significant dark matter annihilation, leading to a potentially detectable neutrino signal. In this paper we examine intermediate mass black holes associated with dark…

Optically levitated microspheres are quantum-limited impulse sensors. In this talk, I will discuss their potential to discover MeV-scale, invisible states emitted in nuclear decays, including sterile neutrinos, axions, or other nucleon-coupled…

In my talk,  I will present recent work on the formation of primordial black hole dark matter and the resultant gravitational wave signal, drawing from recent results of https://arxiv.org/pdf/2303.02168.pdf, https://arxiv.org/pdf/…

I construct a landscape of vacua of string theory and study the resulting ensemble of N-axion effective theories.  This is an incarnation of the string axiverse that is detailed enough to reveal patterns in low-energy couplings.  We…

Black holes formed in the early universe can make up all or part of dark matter.  I will review some scenarios for their formation, especially those that arise from common models of physics beyond the standard model.  For example, the…

Pioneered in the 1950s by Hanbury Brown and Twiss, intensity interferometry refers to the correlation of light intensities incident on two telescopes. As its name suggests, it relies only on photon counting, allowing for interferometry with…

In this talk, I’ll discuss new ways of probing BSM physics using environmental effects - in particular the dense environments of stellar remnants . I‘ll present new bounds on lighter QCD axion models from white dwarves, and discuss how sourcing a…

The universal law of gravitation has undergone stringent tests for many decades over a significant range of length scales. However, on scales below a few tens of μm we are several orders of magnitude away from actually measuring gravitational…

I present a novel way to produce dark compact objects and primordial black holes.  A self-interacting, dissipative dark sector can dominate the energy density of the Universe prior to Big Bang Nucleisynthesis, leading to an early era of…