PoS - Proceedings of Science
Volume 380 - Particles and Nuclei International Conference 2021 (PANIC2021) - Hot and dense matter physics - QGP and heavy ion collisions
Latest results of hadronic resonance production with ALICE at the LHC
D. Mallick*  on behalf of the ALICE collaboration
Full text: pdf
Pre-published on: March 07, 2022
Published on:
Abstract
Resonances with very short lifetimes can be used to probe the rescattering and regeneration ~ processes in the hadronic phase of the system produced after a high-energy collisions. These processes are studied by measuring resonance yields as a function of the system size and collision energy and comparing them to model calculations with and without the hadronic cascades. We present measurements of transverse momentum spectra, integrated yields ($\mathrm{d}N/\mathrm{d}y$), mean transverse momenta ($\langle {p}_\mathrm{T} \rangle$), and angular distributions for light flavor hadronic resonances in pp, p--Pb, Xe--Xe, and Pb--Pb collisions at LHC energies.
The $\langle {p}_\mathrm{T} \rangle$ of resonances as a function of event multiplicity in central Pb--Pb collisions follow the same mass ordering as for other hadrons, expected from the hydrodynamic expansion of the system.
At high $p_\mathrm{T}$ ($>$ 8 GeV/$c$), nuclear modification factor ($R_\mathrm{AA}$) of light flavor hadrons in central Pb--Pb collisions shows strong suppression, whereas the nuclear modification factor in p--Pb collisions, known as $R_{\mathrm{pPb}}$ is consistent with unity. This parton energy loss effect is independent of the particle species. Further, in non-central heavy-ion collisions, the vector mesons can be polarized due to spin-orbital-angular-momentum interaction or hadronization from polarized quarks due to their significant initial angular momentum. Recent measurements of spin alignment for K$^{∗0}$ and $\phi$ mesons produced at midrapidity in pp and Pb--Pb collisions are discussed.
DOI: https://doi.org/10.22323/1.380.0226
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.