12th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

Event-by-event mean transverse momentum fluctuations in pp collisions at s = 13 TeV using ALICE detector

24 Sept 2024, 16:35

1h 55m

DEJIMA MESSE NAGASAKI

Poster 2. High momentum hadrons and correlations Poster Session

Speaker

Ms Bushra Ali (Aligarh Muslim University (IN))

Description

High-multiplicity triggered events produced in pp collisions at $\sqrt{s}=13$ TeV collected by ALICE detector are analyzed to study the mean transverse momentum ($p_{\mathrm{T}}$) fluctuations. The study is inspired by the idea that non-monotonic changes in $p_{\mathrm{T}}$ correlations vary with energy and, if observed, may be taken as an indicator for the {\footnotesize QGP} formation. The finding reveals that the values of the two-particle correlator, $\sqrt{C_m}/M(p_T{)}_m$ decreases with increasing charged particle density and exhibits a power-law behavior similar to those reported for pp and Pb--Pb collisions at lower energies. In order to look for effects of jets and minijets, dependence of correlator, $\sqrt{C_m}/M(p_T{)}_m$ on charged particle density is examined by applying different $p_{\mathrm{T}}$ selection and comparing the behavior of the correlator observed for low $p_{\mathrm{T}}$ to high $p_{\mathrm{T}}$ ranges. The findings based on the data are also compared with the predictions of various Monte Carlo models.

Presentation materials

MeanPt_fluc_HP2024.pdf