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Upcoming Seminars & Lectures

DateTime SpeakerLocationTitle
14:00ColloquiumDavid DeMille
AuditoriumA tabletop-scale probe for TeV physics: the electric dipole moment of the electron
Abstract:Time-reversal (T) symmetry is observed to be broken in K- and B-meson systems, in a manner consistent with the Standard Model (SM) of electroweak interactions. Violation of T-invariance makes it possible for elementary particles such as the electron to have an electric dipole moment (EDM) along their spin axis. Although the SM prediction for the electron EDM is too small to detect, extensions to the SM frequently predict EDMs within a few orders of magnitude of the current limits. I will describe our ACME experiment, which uses methods of atomic and molecular physics to detect the electron's EDM. We recently completed the most sensitive search for this quantity, finding a result consistent with zero but setting a limit an order of magnitude smaller than previous work. Remarkably, the result of this tabletop-scale experiment sets strong constraints on the existence of T-violating phenomena well above the TeV scale being probed at the Large Hadron Collider, and has a substantial impact on theories of physics beyond the Standard Model.
Wed ,
16:00 Daniel Yates
AuditoriumIsoSiM Seminar: "Cancer Research without Chelators (for once!)"
Abstract:Student report about IsoSiM industrial internship at BC cancer Agency
Tue ,
13:00TheoryGilly Elor
U Washington
Theory RoomTBA
Mon ,
14:00ColloquiumDeborah Harris
York U/Fermilab
AuditoriumNeutrino Interferometry at DUNE: Preparing for the Deep Underground Neutrino Experiment
Abstract:The fact that neutrinos have mass and change flavors means that we can learn a great deal about them by studying what are effectively interference patterns that arise after neutrinos propagate over hundreds of kilometers. The DUNE experiment will measure these interference patterns over a broad neutrino energy range after neutrinos have propagated 1300km. In addition, DUNE will use a detector technology that provides exquisite detail about the interactions that make up the interference pattern. This talk will present the current state of neutrino interference measurements and the various ways the field is preparing to jump to a new level of understanding.
Wed ,
16:00SpecialCaterina Ramogida
AuditoriumIsoSiM Seminar: tba
Thu ,
14:00ColloquiumClifford Cheung
AuditoriumUnification from Scattering Amplitudes
Abstract:Scattering amplitudes are fundamental observables that encode the dynamics of interacting particles. In this talk, I describe how to systematically construct these objects without reference to a Lagrangian or an underlying spacetime. The physics of real-world particles like gravitons, gluons, and pions are thus derived from the properties of amplitudes rather than vice versa. Remarkably, the expressions gleaned from this line of attack are marvelously simple, revealing new structures long hidden in plain sight. As an example, I describe how gravitons are in a very precise way equivalent to products of gluons - a fact with far-reaching theoretical and phenomenological applications. Lastly, I show how gravity serves as the "mother of all theories" whose amplitudes secretly unify, among others, all gluon and pion amplitudes.
Tue ,
13:00TheoryTien-Tien Yu
U Oregon
Theory RoomTBA
Wed ,
16:00SpecialDavid McKeen
AuditoriumIsoSiM Seminar: "Dark Matter - Does it matter?"
Thu ,
14:00ColloquiumStephanie Simmons
Simon Fraser U
Thu ,
14:00ColloquiumStefania Gori
UC Santa Cruz