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
A Path to Detecting Self-Interacting Dark Matter using Astrophysical Sub-Structure
Dark matter self interactions can leave distinctive signatures on the properties of satellite…
PQ Axiverse
I construct a landscape of vacua of string theory and study the resulting ensemble of N-axion…
Related News
In this episode of No Reason to Get Excited, Dr. Aaron Winkler talks with Peter Graham about the strange and fascinating world of…
In his talk at the Perimeter Institute for Theoretical Physics, Savas Dimopoulos explores the emergence of nimble, small-scale science…
Dr. Racco's research during his SITP postdoctoral appointment has been awarded the Third Prize of the 2023 Buchalter Cosmology Prize.
If the electron’s charge wasn’t perfectly round, it could reveal the existence of hidden particles. A new measurement approaches…
Peter Graham is interested in discovering the fundamental laws of nature that lie beyond the known standard model. He received an A.B./A…
Image credit: L.A. Cicero
Related Events
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…
What if supersymmetry were an internal symmetry, rather than a spacetime symmetry?
Is the usual treatment of axion dark matter as a classical field reliable? In this talk I will show that the answer is subtle: the axion field could well be in a quantum state that has no complete classical description, but realistic detectors…
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…
I argue on the possibility that compact extra dimensions obtain large size by higher dimensional inflation, relating the weakness of the actual gravitational force to the size of the observable universe. Although this can be realised for any…
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-…
In this talk I will discuss macroscopic dark matter, including primordial black holes, quark nuggets, fermi balls, and other such fun things. I will review some formation scenarios for these objects, as well as the current state of observation…
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…