May 13 – 19, 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

May 15, 2018, 5:00 PM
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Thermodynamics and hadron chemistry Poster Session


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


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
Content type Experiment
Centralised submission by Collaboration Presenter name already specified

Primary author

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

Presentation materials