Orateur
Description
Measuring chiral partners, such as $\rm{K_1}$ and $\rm{K^*}$ mesons, whose vacuum widths are less than 100 MeV, is suitable for investigating chiral symmetry restoration in heavy-ion collisions.
According to a recent theoretical calculation, the $\rm{K_1/K^*}$ ratio in heavy-ion collisions is predicted to be substantially larger than the value obtained using the statistical hadronisation model.
By exploring the $\rm{K_1/K^*}$ ratio as a function of multiplicity across different collision systems, ranging from pp to central heavy-ion collisions, valuable insights into the effects of chiral symmetry restoration can be obtained.
However, $\rm{K_1}$ meson has not been measured in hadron-hadron collisions yet.
The ALICE detector has remarkable particle identification capabilities, thereby enabling the measurement of the $\rm{K_1}$ meson through its hadronic decay channels like $\rm{K_{1}^{-} \rightarrow \rho^{0}K^{-}}$ and $\rm{K_{1}^{-} \rightarrow \pi^{-}\bar{K}^{*0}}$.
In this poster, the feasibility study of the $\rm{K_1}$ measurement in $\rm{pp}$ collisions with ALICE is presented.
