6–12 Apr 2025
Goethe University Frankfurt, Campus Westend, Theodor-W.-Adorno-Platz 1, 60629 Frankfurt am Main, Germany
Europe/Berlin timezone

sPHENIX measurement of dijet correlations in p+p collisions over a large kinematic range

8 Apr 2025, 08:40
20m
HZ 6 (Goethe University Frankfurt, Campus Westend, Hörsaalzentrum)

HZ 6

Goethe University Frankfurt, Campus Westend, Hörsaalzentrum

Speaker

Virginia Bailey (Georgia State University)

Description

The sPHENIX experiment is a next-generation collider detector at RHIC designed for rare jet and heavy flavor probes of the Quark-Gluon Plasma. The experiment includes large-acceptance, hermetic electromagnetic (EMCal) and hadronic (HCal) calorimeter systems, along with a very high-rate data acquisition plus trigger system. In RHIC Run-24, sPHENIX sampled 107/pb of p+p collision data at 200 GeV using an efficient high-p$_T$ jet trigger. This dataset represents a major increase in the luminosity times acceptance compared to previous measurements for this collision energy, along with the first HCal at mid-rapidity at RHIC. This talk presents a measurement of dijet p$_T$ asymmetries and azimuthal acoplanarities, over a wide range of leading jet p$_T$, performed with the full sPHENIX calorimeter system. These measurements provide the pQCD baseline for measurements of dijet p$_T$ asymmetries and angular decorrelation in future sPHENIX Au+Au data-taking at RHIC. The tighter initial kinematic correlations at RHIC compared to the LHC are expected to greatly increase the sensitivity to physics effects.

Category Theory
Collaboration (if applicable) sPHENIX Collaboration

Authors

Presentation materials