Event Category: Particle Seminar

Particle Seminar:
Wednesdays 2:00pm at LBNL

–

Title: The Next Phase Transition of the Universe: From Metastable Higgs Vacuum Decay to Broken Color and Charge Abstract: Our universe has already gone through a sequence of dramatic phase transitions—possibly including grand unification, electroweak symmetry breaking, and the QCD transition. However, this sequence may not be over yet. The Standard Model Higgs field may still reside in a metastable vacuum, and … Read More

–

Title: Electroweak Symmetry Restoration at High Energies Abstract: With the milestone discovery of the Higgs boson at the LHC, detailed study of its properties becomes a high priority for collider physics. After a brief overview of the properties of the longitudinal gauge bosons and the Higgs boson, we revisit the Goldstone boson equivalence theorem and define the “electroweak symmetry restoration” (EWSR) … Read More

–

Title: Energy Correlators at the Collider Frontier Abstract: Extracting answers to major open problems in particle physics from the wealth of collider data demands fresh perspectives on quantum field theory and new methods for connecting theory to observations. Recently, significant attention has focused on detector operators, particularly energy correlators, due to their unique role at the crossroads of experiment, phenomenology, and formal … Read More

–

Title: Abelian Instantons in Quantum Field Theory and Gravity Abstract: I will discuss field configurations of Abelian gauge fields that carry non-zero second Chern number, generated by closed monopole worldlines in four-dimensional Euclidean space. These “Abelian instantons” render the electromagnetic vacuum angle physical. In the presence of gravity, magnetic monopoles that are Reissner-Nordstrom black holes naturally realize these field configurations. Including these … Read More