Precision beta decay experiments require high order QED corrections including the (very large) effects of the nuclear Coulomb field. In this talk I will present new work that explains how to construct a low-energy effective field theory for long-distance QED effects in beta decay. I will explain how:
Over 50 years ago, it was predicted that it is possible to split an atom with a neutrino interaction, but there has never been a concerted experimental effort to confirm this phenomenon. The existence of this process would inform nuclear astrophysics, nuclear reactor monitoring and give a vantage into a process that bridges both the weak and strong fundamental interactions. This would add the neutrino to the selective group of particles confirmed to induce nuclear fission.
We magnetically levitate microdiamonds in vacuum, and the microdiamonds we have made contain single nitrogen-vacancy centres with the longest spin coherence times. We aim to use this setup to put a microdiamond into a macroscopic quantum superposition of being in two places at once. But what is the gravitational effect of a mass in such a superposition? Sougato Bose has proposed a way to probe this question experimentally: if gravity is quantum then it could entangle two microdiamonds that are each in spatial superpositions.
Our knowledge of the fundamental interactions governing the universe relies on our ability to accurately investigate the behavior of elementary particles. Whether they are electrons, photons or else, all particles walk their path in both time and space simultaneously, leaving behind a unique signature. In this seminar, I will review the most advanced methods to detect these spatio-temporal signatures using an old ally: the silicon crystal.
Host: Arianna Garcia Caffaro
The Wright Lab community is invited to a weekly meeting on Mondays at 9:30 a.m. in WL-216 to hear about and discuss what is going on at the lab.
The observation of neutrino oscillations provides proof of non-zero neutrino masses, something which was not predicted in the minimal Standard Model. However, these same neutrino oscillation experiments do not provide information on the absolute scale of the neutrino masses, which remain unknown. The neutrino masses are most directly accessed through those experiments which measure the shape of the beta-decay energy spectrum.
On average, during Run 2 of the Large Hadron Collider (LHC), 30-50 simultaneous vertices yielding charged and neutral showers, otherwise known as pileup, were recorded per event. This number is expected to only increase at the High Luminosity LHC with predicted values as high as 200. As such, pileup presents a salient problem that, if not checked, hinders the search for new physics as well as Standard Model precision measurements such as jet energy, jet substructure, missing momentum, and lepton isolation.
Many New Physics searches and QCD precision measurements at particle colliders involve the study of jet substructure for final state hadrons. Recently it has been understood that measuring correlation functions of energy flow operators inside a jet can be a very powerful tool for phenomenology, which naturally stems from first principles of quantum field theory. In this talk I will present a bridge between the vast theoretical progress made to understand the energy correlators from the field theory perspective and their practical implementation into the real world of hadron colliders.
Scientists confirmed the existence of the Quark-Gluon Plasma (QGP) in heavy ion collisions in the early 2000s. One of the earliest theorized signatures for QGP is the enhancement of particles containing strange quarks. In the last decade, results from proton-heavy ion collisions have generated significant discussion about the initial conditions needed to generate a QGP.
Join us for a moderated panel followed by small group discussions on the topic of autonomy and artificial intelligence in warfare. The panel will feature Ian Abraham (Assistant Professor of Mechanical Engineering & Materials Science at Yale and leader of the Intelligent Autonomy Lab) and Michael Butera (Policy Advisor in the Bureau of Political-Military Affairs at the U.S. Department of State).
