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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 Brief

Particle Physics in the 21st Century - 2 of 2

The discovery of the Higgs particle at the Large Hadron Collider in 2012 completes the Standard Model of particle physics, which successfully accounts for almost all phenomena observed in the universe. In part 2 of this lecture series, Professor Savas Dimopoulos of the Stanford Institute for Theoretical Physics (SITP) will overview this model and some of the deep questions that suggest going beyond it to theories with extra dimensions, supersymmetry, string theory and the multiverse.

Particle Physics in the 21st Century - 1 of 2

The discovery of the Higgs particle at the Large Hadron Collider  in 2012 completes the Standard Model of particle physics, which successfully accounts for almost all phenomena observed in the universe.  Professor Savas Dimopoulos of the Stanford Institute for Theoretical Physics (SITP) will overview this model and some of the deep questions that suggest going beyond it to theories with extra dimensions, supersymmetry, string theory and the multiverse.

News Item

Nov 18 2016

After the historic announcement of the discovery of gravitational waves from merging black holes by LIGO, Peter Graham answered questions on the discovery and gravitational waves in general at

The hierarchy problem, the puzzlingly light mass of the Higgs, is one of the largest open questions in physics beyond the Standard Model.

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

They were named on Tuesday morning at a news conference in Stockholm, Sweden.

Kicking the world’s largest machine into overdrive is turning out to be harder than expected. Researchers at the Large Hadron Collider at CERN, near Geneva in Switzerland, say that plans to run their physics experiments at higher energies are likely to be delayed until next year.

Apr 10 2015

Last night the Operations team for the Large Hadron Collider (LHC) successfully circulated a beam at 6.5 teralectronvolts (TeV) - one of many steps before the accelerator will deliver collisions at four interaction

Stanford Event

Monday, June 13, 2016 (All day) to Friday, June 17, 2016 (All day)
Simons Institute Auditorium
Melvin Calvin Lab
UC Berkeley
Berkeley, California 94720

This converence will focus on new experimental approaches to search for physics beyond the standard model through innovative applications of precision measurement.  These experiment s include searches for axions, hidden photons and gravitational waves.

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