Strange Particle Production in pp Collisions at sqrt(s) = 0.9 and 7 TeV measured with the ALICE Experiment

TL;DR

This paper reports on the measurement of strange particle production in proton-proton collisions at 0.9 and 7 TeV using the ALICE detector, employing multiple identification techniques to analyze particle spectra and ratios.

Contribution

It introduces a comprehensive method combining various particle identification techniques to measure strange hadron spectra and yields in pp collisions at different energies.

Findings

Measured spectra of strange hadrons from 100 MeV/c to 2.5 GeV/c

Analyzed the K/pi ratio and compared with previous data

Applied statistical fits to the particle ratios

Abstract

Hadrons measured in proton-proton collisions at sqrt(s) = 0.9 and 7 TeV with the ALICE detector have been identified using various techniques: the specific energy loss and the time-of flight information for charged pions, kaons and protons, the displaced vertex resulting from their weak decay for K0, Lambda and Xi and the kink topology of decaying charged kaons. These various particle identification tools give the best separation at different momentum ranges and the results are combined to obtain spectra from pt = 100 MeV/c to 2.5 GeV/c. This allows to extract total yields. In detail we discuss the K/pi ratio together with previous measurements and we show a fit using a statistical approach.