Speaker
Goran Simatovic
(University of Zagreb (HR))
Description
Particle interferometry in high-energy collisions is a powerful tool for investigating spatio-temporal characteristics of the created system. In femtoscopy, measuring homogeneity radii as a function of pair $k_T$ is of fundamental importance. From numerous investigations it is known that the accessible range in $k_T$ is highly limited in small collision systems due to a steady rise in background correlations, which are associated to the mini-jet collimation effect. In this analysis we propose a novel method of event shape dependent two-particle interferometry with the aim of removing a large portion of the jet-background. By categorizing events by their transverse sphericity ($S_T$) we identify two classes of events, which significantly differ in hardness. Spherical event ($S_T$>0.7) show a strong reduction in background correlations while jet-like ($S_T$<0.3) carry all the characteristics of previously observed background. Here we present extracted homogeneity radii for both categories of events and offer several interpretations for their difference.
| On behalf of collaboration: | ALICE |
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Author
Goran Simatovic
(University of Zagreb (HR))
