# ICHEP 2022

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

## Probing the hadronic phase of large hadronizing system through the study of the Λ(1520) resonance with ALICE at the LHC

Jul 8, 2022, 7:05 PM
1h 25m
Bologna, Italy

#### Bologna, Italy

Palazzo della Cultura e dei Congressi
Poster Heavy Ions

### Speaker

Dr Neelima Agrawal (Istituto Nazionale di Fisica Nucleare)

### Description

The measurement of hadronic resonance production in heavy-ion collisions at the LHC has led
to the observation of a prolonged hadronic phase after hadronisation. Due to their short
lifetimes, resonances experience the competing effects of regeneration and rescattering of the
decay products in the hadronic medium. Studying how the experimentally measured yields are
affected by these processes can extend the current understanding of the properties of the
hadronic phase and the mechanisms that determine the shape of particle transverse momentum
spectra.
This contribution presents new preliminary results on the production of the Λ(1520) resonance
measured in Pb-Pb collisions at $√s_{NN}$ = 5.02 TeV with the ALICE detector at the LHC. These
results are compared with those from a set of hadronic resonances with a lifetime span of 1 to
46 fm/c such as ρ(770)$^0$, Κ*(892)$^0$, Σ(1385)$^{±}$, Ξ(1530)$^0$ and Φ(1020) measured by the ALICE
experiment. The spectral shapes, mean $\it{p}_{T}$ and particle ratios are compared with those from the
Blast-Wave, MUSIC with a SMASH afterburner and statistical hadronisation model predictions.

In-person participation Yes

### Primary author

Dr Neelima Agrawal (Istituto Nazionale di Fisica Nucleare)