ABSTRACT: The Higgs boson was discovered in 2012 by the ATLAS and CMS experiments at the world’s most powerful particle collider, the Large Hadron Collider (LHC) in Geneva, Switzerland. This particle plays a unique role in fundamental physics. It gives …

Caterina Vernieri (Stanford) “A “Cool” Route to Unveil the Higgs Boson’s Secrets” Read More »

Abstract: Measurements of the universe's present-day expansion rate, or the Hubble constant (H0), that use a Cepheid variable star calibration of Type Ia supernovae (SNe Ia) are in >4σ disagreement with values predicted by the standard, Lambda cold dark matter …

Taylor Hoyt (University of Chicago) “Using Astrophysical Distance Indicators to Test Standard Cosmology” Read More »

Abstract: The existence of long-lived particles (LLPs) is a common feature in many theories beyond the Standard Model. For example, models with small couplings (i.e. R-parity-violating supersymmetry) and models with compressed mass spectra (i.e. co-annihilating dark matter) predict the presence …

Emily Ann Thompson (DESY) “The Quest For Long-Lived Particles: Searching For Displaced Vertices and Tracking in the Trigger” Read More »

Abstract:  This seminar will present recent results of a search for long-lived heavy neutral leptons (HNLs) in proton-protoncollisions at the Large Hadron Collider (LHC). The Standard Model (SM) of particle physics is an extremely successful theory and its major predictions have …

Dominique Trischuk (University of British Columbia) “Displaced Vertex Search for Heavy Neutral Leptons with the ATLAS Detector” Read More »

Abstract: Quantum fluctuations in inflation provide the seeds for the large scale distribution of matter today. According to the standard paradigm, these fluctuations induce density perturbations that are Gaussian distributed. In this limit, all the information is contained within the …

Oliver H.E. Philcox (Princeton) ” Large Scale Structure Beyond the 2-Point Function” Read More »

Abstract: As the most recently-discovered particle of the Standard Model (SM), the Higgs boson plays a key role in the quest to deepen our understanding of fundamental physics. Measurements of its production cross-sections probe for disagreement with the SM that …

Robin Hayes (University of British Columbia; Canada) “Probing the Standard Model Through Measurements of the Higgs Boson with the ATLAS Detector” Read More »