K$^{*}$(892)$^{\mathrm{\pm}}$ resonance with the ALICE detector at LHC

The study of strange hadronic resonances in pp collisions contributes to the study of strangeness production in small systems. Measurements in pp collisions constitute a reference for the study in larger colliding systems and provide constraints for tuning QCD-inspired event generators. Since the lifetimes of short-lived resonances such as $\mathrm K^{*\pm}$~and $\mathrm K^{*0}$~ ($\tau \sim 4$ fm/$c$}) are comparable with the lifetime of the fireball produced in heavy-ion collisions, regeneration and rescattering effects can modify the measured yield, especially at low transverse momentum. This thesis will have the ALICE detector and related software discussed in detail. The $\mathrm K^{*0}$~analysis was performed and comparison to the official ALICE analysis will be shown. The first results for the $\mathrm K^{*}(892)^{\pm}$ resonance obtained in inelastic pp collisions at $\sqrt{\text{s}}=$ 13 TeV will be shown. The $\mathrm K^{*}(892)^{\pm}$ has been measured at mid-rapidity via its hadronic decay channel $\mathrm K^{*}(892)^{\pm} \rightarrow \mathrm K^{0}_{\mathrm{S}} + \pi^{\pm}$, with the ALICE detector. In particular, the transverse momentum ($p_{\mathrm{T}}$) spectrum, integrated yields, $\langle p_{\mathrm{T}}\rangle$ and ratio to stable hadrons will be presented. The $\mathrm K^{*}(892)^{\pm}$ results are compared with $\mathrm K^{*}(892)^{0}$ measurements and with commonly-used Monte Carlo models. Measurements at 13 TeV are compared to the results at 5.02 and 8 TeV to study energy dependence of the production. These results on $\mathrm K^{*\pm}$~have been approved by the ALICE collaboration and under paper preparation phase to be published soon. Some of these results have been accepted as proceedings from the LHCP, Bologna 2018 conference. There has been a recent increase in interest in studying production in pp collisions as a function of charged particle multiplicity density since the observation of similar behaviour as heavy-ion collisions in pp collisions. So results of $\mathrm K^{*\pm}$~as a function of $\langle \mathrm{d}N_{ch}/\mathrm{d}\eta \rangle$ will be presented. The $p_{\mathrm{T}}$ spectra, $\mathrm{d}N/\mathrm{d}y$, and $\langle p_{\mathrm{T}} \rangle$ as a function of charged particle multiplicity density will be presented along with comparison to $\mathrm K^{*0}$~and a ratio to kaons.