SMuK 2023 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 66: Heavy-Ion Collisions and QCD Phases XIII
HK 66.4: Vortrag
Donnerstag, 23. März 2023, 16:30–16:45, SCH/A315
Direct photon and χc performance studies for the ALICE 3 experiment — •Abhishek Nath for the ALICE Germany collaboration — Ruprecht Karl University of Heidelberg, Germany
Direct photons are one of the critical tools for studying hot QCD medium as their mean free path is much larger than the size of the system and they leave the medium without further interaction. As the ALICE 3 LOI received the LHCC recommendation to proceed with R&D, we try to perform more critical studies regarding photons. With much larger rapidity coverage and usage of bent Monolithic Active Pixel Sensors (MAPS), the ALICE 3 experiment aims to go much lower in pT to explore the direct photons originating majorly from thermal contribution. Along with that, with the measurement of χc, χb, and other L = 1 states in the extended rapidity range in ALICE 3, a more accurate description of the dynamics of quarkonium interactions with the medium will be possible.
In this talk, we present performance studies and uncertainty projections in key direct photon measurements like Rγ, direct photon spectrum and corresponding inverse slope parameter, direct photon v2 and possibly also HBT anticipated for Run 5 and 6. Along with this, the performance of χc measured through the radiative decay channel χc → J/ψ + γ in Pb–Pb collisions is also presented.