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

Fermi LAT has revealed an excess from the Galactic center that is compatible with a signal of dark matter annihilation, but other interpretations such as a population of millisecond pulsars have been found compelling. More recently, an excess…

A dark force, which is a necessary ingredient of self-interacting dark matter models, can lead to gravothermal collapse of dark matter in small mass halos. This talk will review the physics of gravothermal collapse and highlight new results…

Heavy axions can arise in the context of Grand Unified theories where a confining dark gauge group unifies with the Standard Model (SM) gauge group. Depending on the strength of the axion coupling to the SM, heavy axion lifetimes can vary…

For several years, various experimental results on B meson decays show persistent discrepancies with respect to Standard Model expectations. Discrepancies are observed in branching ratios, angular distributions, and lepton flavor universality…

Cosmological measurements are playing a central role in our understanding of the physics related to dark sectors, in particular related to dark matter. Currently there are some noticeable tensions appearing in the data when it is interpreted…

There has been heated debate in the astronomical community about whether some ancient galaxies observed by JWST are far too large to have formed in our standard cosmology. This seminar --- aimed at an audience with no prior astronomy or cosmology…

Thousands of person years have been invested in searches for New Physics (NP), the majority of them motivated by theoretical considerations. Yet, no evidence of beyond the Standard Model (BSM) physics has been found. This suggests that model-…

The phenomenon of cosmological gravitational particle production (CGPP) occurs during and after inflation as light fields “feel” the cosmological expansion and their mode functions evolve non-adiabatically.  CGPP is a compelling and minimal…

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…