Speakers
Description
In this work we report the first results on $K^{*}(892)^{\pm}$ and $\phi$(1020) production in pp collisions at $\sqrt{s}$ = 5.02 TeV with the ALICE detector. The hidden strangeness $\phi$-meson is reconstructed at mid-rapidity via its hadronic decay channel $\phi \rightarrow$ K$^{+}$K$^{-}$, by employing different techniques, without and with kaon identification using the information from the Time Projection Chamber and Time of Flight detectors. The $K^{*\pm}$ is reconstructed via a two-steps decay process where the resonance undergoes a strong decay to K$^{0}_{S}$ + $\pi^{\pm}$ and then the K$^{0}_{S}$ decays weakly to $\pi^{+}$ + $\pi^{-}$. Measurements of these resonances in pp collisions at $\sqrt{s}$ = 5.02 TeV constitute a reference for the measurements in Pb-Pb collisions at the same center-of-mass energy and contribute to the study of energy and multiplicity dependence of particle production in pp collisions. Results presented here include the transverse momentum ($\it p_{T}$) spectra, integrated yields and $\langle p_{T} \rangle$ for $K^{*\pm}$ and ${ \phi}$. These are compared with results from other LHC energies and with the predictions from QCD-inspired event generators.
| List of tracks | Hadron resonances |
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