# Quark Matter 2018

13-19 May 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

## Energy dependence of $\phi (1020)$ production at mid-rapidity in pp collisions with ALICE at the LHC

15 May 2018, 17:00
2h 40m
First floor and third floor (Palazzo del Casinò)

### Speaker

Mr Sushanta Tripathy (Indian Institute of Technology Indore (IN))

### 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.

Collaboration ALICE Experiment Presenter name already specified

### Primary author

Mr Sushanta Tripathy (Indian Institute of Technology Indore (IN))