Charged particle multiplicity dependence of $\Lambda(1520)$ production in pp collisions at $\sqrt{s}$ = 13 TeV with ALICE at the LHC

4 Nov 2019, 17:40
20m
Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Poster Presentation Small systems Poster Session

Speaker

Dr Pragati Sahoo (Indian Institute of Technology Bombay)

Description

Resonances are useful tools to study the properties of the hadronic medium produced in high energy heavy-ion collisions, due to their short lifetime. In particular, the baryonic resonance $\Lambda(1520)$ is important because of its lifetime ($\tau \sim$ 12.6 fm/$\it c$), which lies in between the lifetimes of $ K^*$ and $\phi$ resonances.
Its study will indicate the dominance of re-scattering or regeneration in the yields and support results obtained for other resonances having different lifetimes. The reconstruction of $\Lambda(1520)$ as a function of multiplicity in pp collisions at $\sqrt{s}$ = 13 TeV has been performed via its hadronic decay channel. New measurements of the transverse momentum ($p_{\rm{T}}$) spectra, $p_{\rm{T}}$-integrated yield ($\langle dN/dy\rangle$), $\langle p_{\rm{T}}\rangle$ and $\Lambda(1520)/ \Lambda$ yield ratio in different multiplicity classes will be presented and discussed. The results obtained are expected to provide more information on strange resonance production and the system-size evolution of the hadronic phase in small systems. Furthermore, these results are important for studies of the multiplicity-dependent enhancement of multi-strange hadrons in small systems.

Primary author

Dr Pragati Sahoo (Indian Institute of Technology Bombay)

Presentation Materials

There are no materials yet.