3–9 Sept 2023
Hilton of the Americas, 1600 Lamar, Houston, Texas, 77010, USA
US/Central timezone

Universal cumulants from fluctuating width of rapidity distributions

6 Sept 2023, 14:20
20m
Ballroom C (Hilton of the Americas)

Ballroom C

Hilton of the Americas

Oral Critical point searches Critical Point

Speaker

Prof. Adam Bzdak (AGH University of Science and Technology)

Description

In relativistic heavy-ion collisions, the longitudinal fluctuations of the fireball density caused, e.g., by baryon stopping fluctuations result in event-by-event modifications of the proton rapidity density distribution. I will present the multiparticle rapidity correlation functions due to the varying distribution width of the proton rapidity density in central Au+Au collisions at low energies. Then, I will discuss the cumulant ratios in the context of the recent STAR Collaboration results. It is found that the cumulant ratios for small width fluctuations are universal and are of the same order as those measured by the STAR Collaboration. This effect might be important in the search for the predicted QCD critical point.

Category Theory

Primary author

Prof. Adam Bzdak (AGH University of Science and Technology)

Co-author

Michal Barej (AGH UST Krakow)

Presentation materials