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!

K*(892)± production in pp collisions at √s = 5.02 and 8 TeV with ALICE at the LHC

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

First floor and third floor

Palazzo del Casinò

Poster QCD at high temperature Poster Session


Ms Pragati Sahoo (Indian Institute of Technology Indore (IN))


Resonances are useful tools to study the properties of the hadronic medium produced in high energy heavy-ion collisions, due to their short lifetime. They are good candidates to probe the interplay of particle re-scattering and regeneration in the hadronic phase. In particular, the K$^{*}(892)^{\pm}$ resonances are important because of their very short lifetimes ($\sim$ 4 fm/$\it c$) which are comparable to that of the fireball. The K$^{*\pm}$ is reconstructed via a two-step decay process: the resonance undergoes a strong decay to K$^{0}_{S}$ + $\pi^{\pm}$ and then the K$^{0}_{S}$ decays weakly to $\pi^{+}$ + $\pi^{-}$. Measurements in pp collisions constitute a reference for the measurements in p-Pb and Pb-Pb collisions at the same center-of-mass energy and contribute to the study of the energy and multiplicity dependence of particle production in pp collisions. The results presented here include the transverse momentum ($\it p_{\rm T}$) spectra, integrated yields and $\langle p_{\rm T} \rangle$ for K$^{*\pm}$ in pp collisions at $\sqrt{s}$ = 5.02 and 8 TeV. The results are compared to the measured production of neutral K$^{*}(892)$ and with the predictions from commonly used QCD-inspired event generators.

Content type Experiment
Centralised submission by Collaboration Presenter name already specified
Collaboration ALICE

Primary authors

Ms Pragati Sahoo (Indian Institute of Technology Indore (IN)) Sudipan De (Indian Institute of Technology Indore (IITI))

Presentation materials