ASP Online Seminars: First Physics Results from sPHENIX

Tuesday 17 Jun 2025, 13:00 → 14:30 UTC

Abstract:

The sPHENIX experiment at RHIC is designed to measure hard probes of the quark gluon plasma (QGP) with significantly higher precision than has ever been accomplished before at RHIC. Measurements of hard probes such as heavy flavor and jets provide information about the microscopic properties of the QGP as they are produced very early in the collision and thus, traverse the produced QGP matter.

After construction in May 2023 and a first wave of commissioning during the same year, sPHENIX recorded p+p and Au+Au collision data in 2024 to fully commission the remainder of its subsystems. The first physics results from the 2024 data taking period as well as projections for future measurements with the upcoming high statistics 2025 Au+Au dataset will be discussed.

Bio of the speaker:

Ejiro Umaka is a Research Associate at Brookhaven National Laboratory working on the  sPHENIX experiment at the Relativistic Heavy Ion Collider (RHIC). Her research focuses on investigations of the microscopic properties of a very hot and dense matter created in heavy-ion collisions at RHIC called quark gluon plasma. She also leads the reconstruction and calibration efforts of sPHENIX forward detectors. Before arriving at BNL, she collaborated on sPHENIX and the ATLAS experiment at the Large Hadron Collider as a postdoc at Iowa State University. She earned her Ph.D. from the University of Houston in 2020.

sPHENIX_First_Results_EjiroU_061725.pdf

video1621617056.mp4