Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

System-size dependence of particle production at mid- and forward rapidity with ALICE

Jul 9, 2022, 3:20 PM
15m
Room 5 (Avorio)

Room 5 (Avorio)

Parallel Talk Heavy Ions Heavy Ions

Speaker

Abhi Modak (Bose Institute (IN))

Description

The rapidity dependence of particle production contains information on the partonic structure of the projectile and target and is, in particular at LHC energies, sensitive to non-linear QCD evolution in the initial state. At LHC, collision final states have been mainly studied in the central kinematic region, however, there is a rich opportunity for measurements in the forward direction, which probe the nucleon structure at small Bjorken-x values. Moreover, investigating the system-size dependence of the particle production at the same collision energy is particularly important for directly studying nuclear effects.

In the first part of the talk, the final Run 1 and 2 particle-production results at forward rapidities will be presented for pp, p-Pb, and Pb-Pb collision systems, where ALICE has unique coverage. When combined, the Forward Multiplicity and the Silicon Pixel Detectors can measure charged particles over a wide range of $-3.4<\eta<5.0$. The Photon Multiplicity Detector has complementary coverage for neutral-particle production over the kinematic range $2.3<\eta<3.9$.

In the second part of the presentation, we will introduce the upgraded Run 3 ALICE configuration. The new Monolithic Active Pixel Sensors-based Inner Tracking System allows full tracking and vertexing for $|\eta|<2.5$. When combined with the new Muon Forward Tracker, the tracking can be extended to cover $-3.6<\eta<2.5$. The performance of the new detectors and the tracking/matching algorithms will be presented for the $\sqrt{s}=900$ GeV pp pilot-beam data taking in autumn 2021.

In-person participation Yes

Primary author

Abhi Modak (Bose Institute (IN))

Presentation materials