DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS 2025
Cancelled/Postponed: Tuesday 14 January 2025 at 10:15 in A315 and using Zoom: Michael Campbell (CERN) Hybrid pixel detectors Abstract: Hybrid pixel detectors were first developed for the LHC as they provide noise hit free imaging of particle collisions even at extremely high event rates. The same feature can be used to provide detection and imaging solutions in numerous other fields. The Medipix Collaborations, which are coordinated at CERN, have pioneered the spread of hybrid pixel detector technology to fields as far apart as space-based dosimetry, industrial X-ray analysis and inspection, homeland security, molecular biology, medical imaging and classroom experiments. This presentation will explain how hybrid pixel detectors work and cover how the Medipix and Timepix readout chips can provide unique imaging solutions to many different fields. The recent introduction of sub-ns timing at the pixel level combined with novel interconnect technologies permitting almost seamless coverage of large detection areas should further extend the reach of the technology.
Cancelled/Postponed: Thursday 16 January 2025 at 10:15 in A315 and using Zoom: Michal Heller (Gent) New looks at nonequilibrium phenomena at high and low energies Abstract: I will discuss recent insights into nonequilibrium dynamics at high and low energies originating from the interplay of slow and fast processes. These theoretical developments are motivated, on one hand, by ultrarelativistic nuclear collisions at RHIC and LHC and neutron star mergers, and on the other, by cold atom experiments.
Tuesday 21 January 2025 at 10:15 using Zoom: Emidio Gabrielli (Trieste) Quantum Entanglement and Bell Inequality Violation at High Energies Abstract: I will present pioneering results demonstrating, for the first time, quantum entanglement and non-locality at high energies and in the presence of strong and weak interactions. Central to this discussion is Bell’s inequality relating the probabilities of different measurements on a given system. It is satisfied by local, deterministic theories and violated by quantum mechanics in the presence of entangled states. I will review the potential for detecting entanglement and testing Bell inequalities in collider experiments, focusing on diverse final states such as top-quark and tau-lepton pairs, Lambda baryons, massive gauge bosons, and vector mesons. Additionally, I will explore how entanglement offers a novel approach for constraining physics beyond the Standard Model, highlighting its most promising implications for future researches.
Link to video: https://unitube.it.helsinki.fi/unitube/embed.html?id=363a6d95-fdf1-4b51-9ba4-452e7675bb5d
Link to pdf slides: Talk_Entanglement-Bell .
