dr Iwona Sputowska (IFJ PAN): Event-by-event correlations and fluctuations with strongly intensive quantities in heavy-ion collisions with ALICE

Friday Nov 4, 2022, 10:15 AM → 11:00 AM Europe/Warsaw

Abstract:

The strongly intensive quantity Σ is a new observable, introduced recently to the domain of heavy-ion physics. In superposition models which assume independent particle production from statistically identical sources, Σ is insensitive to the number of sources and its fluctuations, contrary to the standard forward-backward correlation coefficient (bcorr). Therefore it provides direct information on the multiplicity correlations and fluctuations from a single source.

This talk presents new results on forward-backward correlations studied with the quantity Σ, measured by ALICE at LHC in Xe-Xe reactions at √sNN = 5.44 TeV and in Pb-Pb collisions at √sNN = 2.76 and 5.02 TeV. The results obtained for heavy ions are compared to ALICE data on pp collisions at √sNN = 0.9; 2.76; 5.02; 7 and 13 TeV.

Important: This seminar is held in building D-11 room 104. 

04112022-IwonaSputowska-FBCorrelations.pdf