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
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
Credit: Harrison Truong
The hierarchy problem, the puzzlingly light mass of the Higgs, is one of the largest open questions in physics beyond the Standard Model…
Related Events
The anomalous magnetic moment of the muon (amu) serves as a precise test of the quantum nature of the Standard Model (SM) and its extensions. To identify beyond-SM physics, one must subtract the SM contributions, particularly the non-perturbative…
With the direct detection of gravitational waves (GWs) from LIGO in 2016, and recent evidence from the NANOGrav collabortion for a stochastic GW background, GW astronomy is becoming an important tool for understanding the universe. Recently it…
Much remains to be understood about the origin and evolution of our universe's largest supermassive black holes (SMBHs). In this talk, I motivate the possibility that some fraction of these SMBHs may be primordial in origin,…
Marios Galanis
In this talk I will do three things. First, I will outline the conditions under which the interaction rate of inelastic processes with a system consisting of N targets scales as N^2. Second, I will present computations of interaction rates for…
Ultracold atoms offer a unique platform to study spin physics. When atoms are arranged in an optical lattice in form of a Mott insulator, the atomic motion is frozen out and the study and control of the spin degree of freedom emerges as a new…
The quantum chromodynamics axion is a well motivated new physics candidate that can explain the strong-CP problem related to the neutron electric dipole moment in addition to the dark matter (DM) in our Universe. However, if the axion is…
The classical equations of motion of a quantum field theory are obtained by minimizing an action. When we apply this procedure to a gauge theory, there is an interesting issue. The variation of the classical action along a gauge direction is zero…
This colloquium will be given by Nobel laureate Professor Robert Laughlin of the Stanford Physics Department.
Professor Laughlin's abstract:
I invoke physical principles to address the question of how living things might…
When DM bosons have an ultra-light mass, they can act as a classical, coherent field. In many cases, and specifically in some ALP models, this field has magnetic properties, and it can therefore be measured by quantum magnetometers. The Noble and…