# Quark Matter 2018

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!

## First results on charged K∗(892) resonance production in pp collisions at √s = 13 with ALICE at the LHC

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

### Speaker

Kunal Garg (Universita e INFN, Catania (IT))

### Description

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 $\rm K^{*}(892)^{\pm}$ ($\tau \sim 4$ fm/$\textit{c}$) 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.

The first results for the $\rm K^{*}(892)^{\pm}$ resonance obtained in inelastic pp collisions at $\sqrt{\text{s}}=$ 13 TeV will be shown. The $\rm K^{*}(892)^{\pm}$ has been measured at mid-rapidity via its hadronic decay channel $\rm K^{*}(892)^{\pm} \rightarrow \rm K^{0}_{\rm{S}}+ \pi^{\pm}$, with the ALICE detector. In particular, the transverse momentum ($p_{\rm T}$) spectrum, integrated yields, $\langle p_{\mathrm{T}} \rangle$ and ratio to stable hadrons will be presented. The $\rm K^{*}(892)^{\pm}$ results are compared with $\rm K^{*}(892)^{0}$ measurements and with commonly-used Monte Carlo models. Measurements at 13 TeV are in addition a baseline for comparison with pp measurements at other LHC energies.

Collaboration ALICE Presenter name already specified Experiment

### Primary author

Kunal Garg (Universita e INFN, Catania (IT))