Rosi Reed
Lehigh University, PA·Physics
Just microseconds after the Big Bang, the universe was filled with quark-gluon plasma (QGP). In this extremely hot state, quarks and gluons, normally locked inside protons and neutrons, move freely.
- Fields
Physics
- Topics
quark-gluon plasma
heavy-ion collisions
jets
- Grants
- 1 known grant, through Jul 2028
What they work on
- Measure how jet energy loss in quark-gluon plasma depends on temperature, density and path length, using dijet momentum imbalance and jet v2 from STAR and sPHENIX at RHIC.
- Compare jet quenching across collision systems including p+p, Au+Au, Ru+Ru, Zr+Zr and possibly O+O, using Event Shape and Jet Geometry Engineering to isolate geometric effects.
- Apply AI-driven techniques to separate the intrinsic jet signal from background and medium response, improving precision of dijet and v2 measurements.
- Cross-calibrate global event properties between STAR and sPHENIX using the group's Event Plane Detectors, and continue their calibration and data production.
More about the research
Smashing atomic nuclei together at nearly the speed of light recreates tiny droplets of this plasma. Studying it tests quantum chromodynamics (QCD), the theory of the strong nuclear force.
Why it matters
This is fundamental physics research. It could sharpen understanding of the strong nuclear force and of matter in the early universe. The AI-based background subtraction and the cross-calibrated detector methods are intended to make jet measurements more precise. They also lay groundwork for jet studies at the future Electron-Ion Collider.
Known grants
From NIH and NSF research grants. Labs often have other funding we can't see.
Closest labs
Jennifer Klay
California Polytechnic State University-San Luis Obispo, CA·Physics
Install and commission the ALICE Fast Interaction Trigger (FIT) detector at the CERN LHC for Run 3 with undergraduate researchers.
Jinfeng Liao
Indiana University, IN·Physics
Quantify chirality transport through the chiral magnetic effect (CME) in quark-gluon plasma, using anomalous viscous hydrodynamics simulations and Bayesian analysis of heavy-ion data across many beam energies.
Wim Cosyn
Florida International University, FL·Physics·Early-career
Model high-energy electron scattering off the deuteron and helium using light-front quantum mechanics to separate nuclear structure from reaction dynamics.
The school
Lehigh University: 13 labs on PI Pages, $62M a year on research, 99 research doctorates a year.
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