Speaker
Description
Hadronic resonances are unique tools to investigate the interplay of re-scattering and regeneration effects in the hadronic phase of heavy-ion collisions. As the $\phi$ meson has a longer lifetime compared to other resonances, it is expected that its production will not be affected by regeneration and re-scattering processes. Measurements in small collision systems such as proton-proton (pp) collisions provide a necessary baseline for heavy-ion data and they help to tune pQCD inspired event generators. Being an $\mathrm{s\bar{s}}$ quark pair with zero net-strangeness content, measurements of $\phi$ meson production contribute to the study of strangeness production in small systems.
We report on measurements with the ALICE detector at the LHC of $\phi$ meson production in minimum bias pp collisions at different beam energies and as a function of charged particle multiplicity. The results include the transverse momentum $(p_{\mathrm{T}})$ distributions of $\phi$ as well as the $\langle p_{\mathrm{T}}\rangle$ values and particle yield ratios. The key question that will be addressed is whether there is a dependence of the relative $\phi$ production in pp collisions on the collision energy.
| Content type | Experiment |
|---|---|
| Collaboration | ALICE |
| Centralised submission by Collaboration | Presenter name already specified |
