Event Time: Thursday, March 5, 2020 | 2:00 pm - 3:00 pm
Event Location:
TRIUMF Auditorium
Add to Calendar 2020-03-05T14:00:00 2020-03-12T15:00:00 Theory error bars for nuclei Event Information: In the precision era of low-energy nuclear physics it is no longer acceptable that only experimentalists practice robust uncertainty quantification. Theorists must also generate honest error estimates. Bayesian statistics is well-suited for this task, by quantifying the systematic errors from models with guidance from theoretical expectations about omitted physics. Bayesian methods are being developed and applied to calculate and validate error bands for a wide range of nuclear observables, to determine the limits of the nuclear landscape, to help in the design of experiments, and to catalyze physics discovery. I will give a basic overview of the Bayesian approach to theory errors and survey the recent applications. Event Location: TRIUMF Auditorium
Event Time: Thursday, March 12, 2020 | 2:00 pm - 3:00 pm
Event Location:
TRIUMF Auditorium
Add to Calendar 2020-03-12T14:00:00 2020-03-12T15:00:00 Searches for dark matter and new physics with GAMBIT Event Information: I will give an introduction to GAMBIT, the Global and Modular Beyond-the-Standard Inference Tool, focusing on the Beyond-the-Standard-Model science programme currently being pursued with it. This includes indirect searches for dark matter with gamma-rays and neutrinos, direct searches with a range of underground experiments, cosmological constraints, associated searches for new particles at the LHC and in flavour experiments, and precision tests of the Standard Model. I will present the latest combined constraints on a range of different models for new physics, ranging from Higgs-portal dark matter to axions and supersymmetry, as well as previewing a few GAMBIT extensions and results for other models on the near horizon. Event Location: TRIUMF Auditorium
Event Time: Thursday, March 19, 2020 | 2:00 pm - 3:00 pm
Event Location:
TRIUMF Auditorium
Add to Calendar 2020-03-19T14:00:00 2020-03-19T15:00:00 Detecting the Tiny Thump of a Neutrino Event Information: Coherent elastic neutrino-nucleus scattering (CEvNS) was first predicted in 1974; it's a process in which a neutrino scatters off an entire nucleus. By neutrino standards, CEvNS occurs frequently, but it is tremendously challenging to see. The only way to observe it is to detect the minuscule thump of the nuclear recoil. CEvNS was measured for the first time by the COHERENT collaboration using the unique, high-quality source of neutrinos from the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory. This talk will describe COHERENT's recent measurement of CEvNS, the status and plans of COHERENT's suite of detectors at the SNS, and the physics we will learn from the measurements. Event Location: TRIUMF Auditorium