Young Scientists Symposium Series- Fall

Tuesday 15 Dec 2020, 11:00 → 13:30 US/Central

Bluejeans

Lindsey Bleem (Argonne Labs)

For those that are new to the division, the YSSS is an opportunity to build the community of our early career members through exposure and greater communication about our work.  We have talks lined up by students and postdocs across the groups within the division.

Vangeli Kourlitis on Pre-Learning a Geometry Using Machine Learning to Accelerate High Energy Physics Detector Simulations

YSSS_Presentation_Aurora_Cossairt.pdf

11:00 → 11:15 Pre-Learning a Geometry Using Machine Learning to Accelerate High Energy Physics Detector Simulations

Speaker: Vangelis Kourlitis

11:15 → 11:30 Energy-Energy Correlations in DIS

Event shape observables have been widely investigated at various lepton and hadron colliders. I will talk about our recent works about the transverse-energy-energy (TEEC) correlation and energy-energy correlation (EEC) event shape variables in deep-inelastic scattering, which can be used for the precision study of perturbative and nonperturbative QCD.
EEC/TEEC is closely related to the ordinary TMD physic and provides a way to test the universality of QCD factorization in different colliding systems, such as at electron+positron, electron+proton, and proton+proton colliders. In our work, we report the resummed EEC/TEEC distributions up to NNNLL accuracy matched with the NLO cross-section for the production of a lepton and two jets.

Speaker: Haitao Li

11:30 → 11:45 Cosmo-Paleontology: Searching for Fossil Groups in Gravity-only Simulations

Speaker: Aurora Cossairt

11:45 → 12:00 Measurement of Electron Neutrino and Antineutrino Appearance with the NOνA Experiment

Speaker: Shiqi Yu

12:00 → 12:15 Break (15 min)

12:15 → 12:30 Short-pulse RF Breakdown Test of an X-band Single-cell Accelerating Structure

High gradient acceleration is one of the key figures of merit for future large-scale linear colliders. RF breakdown is the main factor limiting accelerating gradient and extensive research has been conducted in klystron-driven X-band structures at 100 MV/m level using long (>100 ns) RF pulses. A promising approach to increase the gradient is to use shorter (<20 ns) RF pulses. The first short-pulse RF breakdown test has been recently conducted at AWA, where 3 ns X-band RF pulses were generated from a power extractor and used to feed a single-cell accelerating structure. ~200 MV/m average accelerating gradient and ~500 MV/m peak surface field have been achieved with no detection of RF breakdown from the RF traces. More details will be presented in this talk.

Speaker: Jiahang Shao

12:30 → 12:45 Anomaly Inflow and Holography

Speaker: Sungwoo Hong

12:45 → 13:00 Reconstruction of Electron Energies in ProtoDUNE-SP

Speaker: David Martin (Argonne)

13:00 → 13:15 A Measurement of Gravitational Lensing of the Cosmic Microwave Background Using SPT-3G

Abstract: Measurements of the cosmic microwave background (CMB) can be used to map the distribution of matter in the universe through gravitational lensing deflections as the CMB photons travel through the large-scale structures of the universe. Gravitational lensing induces correlations between CMB temperature and polarization modes at different angular scales. These correlations can be extracted by lensing quadratic estimators to reconstruct the projected 2D lensing potential and matter distribution. The power spectrum of the lensing potential is a powerful probe of the growth of structure. It can constrain the sum of neutrino masses, dark energy, and the amplitude of matter density fluctuations. Furthermore, the matter distribution from lensing provides a promising source for cross-correlation with surveys at other wavelengths and offers a template for removing lensing-induced contamination in searches for inflationary gravitational waves. The third-generation camera for the South Pole Telescope (SPT-3G) is an excellent instrument for CMB lensing measurements with high-sensitivity from a new multichroic receiver with 16,000 polarization-sensitive detectors, and fine arcminute-scale resolution provided by the ten-meter dish of SPT. I review the SPT-3G instrument and present the lensing power spectrum from the 2018 data of the SPT-3G survey.

Speaker: Zhaodi Pan (Argonne)

13:15 → 13:30 MadGraph Profiling

Speaker: Smita Darmora (Argonne)

FlameGraph.svg

YSSS_slides.pdf