Staff

NPA Seminar, Simone Mazza, UCSC, "4D tracking technologies and R&D"

Precision Timing information at the level of 10-30ps is a game changer for detectors at future collider experiments. For example, the ability to assign a timestamp with 30ps precision to particle tracks will mitigate the impact of pileup at the High-Luminosity LHC (HL-LHC). With a time spread of the beam spot of approximately 180ps, a track time resolution of 30ps allows for a factor of 6 reduction in pileup. HL-LHC will only be the first in HEP experiments to exploit the concept of 4D tracking using time as one of the parameters.

NPA Seminar, Leticia Cunqueiro Mendez, Sapienza University, “Jet substructure: the Lund plane, the dead cone and other effects in QCD”

Jet declustering techniques have brought up the possibility to access the Lund plane of QCD emissions in jets. By scanning different areas of the Lund jet plane, sensitivity to different physics effects can be enhanced, including quark mass effects. In this talk I will discuss the techniques and the measurement by ALICE (Nature 605, 440-446 (2022)) of the first direct signature of the dead cone effect in QCD. I will also discuss the problematics of the Lund plane in heavy ion collisions and prospects.

NPA Seminar, Rene Bellwied, University of Houston, “From the Initial to the Final State - Quantum Entanglement in Relativistic Particle Collisions”

Collective quantum effects should play a significant role in the formation of hadrons from a deconfined and chirally symmetric state of matter. Yet most of our models ignore these effects or treat them as corrections after the dynamic calculation (e.g. color reconnection effects in PYTHIA). I will try to show that there is a direct connection between the entanglement entropy in the initial state and the thermodynamic entropy in the final state at least for elementary collisions where not too many decoherence effects are expected.

NPA Seminar, Yoshitaka Hatta, Brookhaven National Laboratory, “Azimuthal Angular Asymmetry of Soft Gluons in Jet Production”

We investigate the impact of soft gluon resummation on the azimuthal angle correlation between the total and relative momenta of two energetic final state particles (jets). We show that the initial and final state radiations induce sizable cos(ϕ) and cos(2ϕ) asymmetries in single jet and dijet events, respectively.

EHS Orientation for Wright Lab Shop Users - Spring 2022

Wright Lab will host 1-hour Environmental Health and Safety (EHS) Shop Orientations. The EHS shop orientation is offered each semester and is required to be taken once by anyone who would like to gain access and make use of the research and teaching shops at Wright Lab.
For more information on the shop facilities at Wright Lab see: https://wlab.yale.edu/facilities
Register here: https://forms.gle/MzVDERoSrtmwp8579

NPA Seminar, Alex Fieguth, Stanford University, “Probing Fundamental Physics With Levitated Force Sensors”

Microspheres have been the first objects optically levitated by Arthur Ashkin in the 1970s. While the technology itself was successfully used to trap atoms to explore new physics, the actual utilization of microspheres and other macroscopic objects as a useful tool for physics has emerged in the recent years. The unique properties of those levitated objects allows to deploy them as sensors with unmatched properties and advantages.

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