Speaker
Description
Short-lived resonances are powerful probes to understand the hadronic phase in ultra-relativistic heavy-ion collisions, due to their lifetimes of $\sim$10 fm/c, comparable to the time span between chemical and kinetic freeze-out. The measurements of short-lived resonances in small collision systems provide the baseline for heavy-ion collision measurements as well as exploration of cold nuclear matter effects, which can be achieved by comparison between measurements in pp and p-Pb collisions. We present the multiplicity dependence of the production of $\rm{f}_{0}$(980) at mid-rapidity $(\mid\rm{y}\mid<0.5)$ in pp collisions at $\sqrt{s} =$ 13 TeV and p-Pb collisions at $\sqrt{s_{\rm{NN}}} =$ 5.02 TeV. The measurement has been performed with ALICE at the LHC and the particles have been reconstructed in the $\rm{f}_{0}(980) \rightarrow \pi^{+}\pi^{-}$ decay channel. The poster will include details on the signal extraction, transverse momentum spectra, particle yield and mean transverse momenta of $\rm{f}_{0}$(980). In addition, the particle yield ratios and nuclear modification factor, $R_{\rm{pPb}}$ will be presented to explore the internal structure of $\rm{f}_{0}$(980).
| Contribution type | Poster |
|---|---|
| Track | Initial State |
| Collaboration (if applicable) | ALICE |
