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HK: Fachverband Physik der Hadronen und Kerne

HK 59: Invited Talks II

HK 59.3: Invited Talk

Thursday, March 14, 2024, 12:00–12:30, HBR 14: HS 1

Status of ALICE and ALICE 3 — •Alexander Schmah — Gesellschaft fuer Schwerionenforschung, Darmstadt, Germany

ALICE is the dedicated heavy-ion experiment at the Large Hadron Collider at CERN with a focus on studying the quark-gluon plasma created in collisions between lead ions. In the year 2018 the Run 2 data taking period was finished, followed by an upgrade period where, among others, a new inner tracking system was installed and the time projection chamber (TPC) MWPC readout chambers were replaced by GEM based chambers. These upgrades allow a more than ten times higher data taking rate for the TPC, up to 50 kHz for Pb-Pb collisons, and more precise measurements of secondary vertices.

ALICE 3 is under discussion as a successor for the current ALICE experiment with a completely new setup. The ALICE 3 tracking detectors are solely based on silicon-pixel technology. For the most inner layers the ultra-thin MAPS based layers will be bent to cylindrical shapes. This will allow the measurement of charged particles at very low transverse momenta down to a few tens of MeV/c. With the new setup, 20--50 times higher rates can be achieved compared to the Run 3 setup of ALICE.

In this talk I will give an overview of the current ALICE Run 3 results from the pp and Pb-Pb data taking periods and discuss the status of ALICE 3.

Keywords: ALICE; Schwerionen