LXX International conference "NUCLEUS – 2020. Nuclear physics and elementary particle physics. Nuclear physics technologies"

Forward-backward multiplicity correlations with strongly intensive observables in pp collisions simulated in PYTHIA

13 Oct 2020, 18:35

1h

Online

Poster report Section 4. Relativistic nuclear physics, elementary particle physics and high-energy physics. Poster session 4 (part 1)

Speaker

Andrey Erokhin (St Petersburg State University (RU))

Description

Strongly intensive observables can be used to measure forward-backward (FB) correlations between charged particles in two separate pseudorapidity intervals. We will present calculations of observables in pp collisions simulated in PYTHIA at the LHC energies, and examine the azimuthal dependence of such correlations.
Within the model of independent statistically identical particle sources, these observables do not depend on the mean value and fluctuations in the number of the sources, and therefore may provide a signature of collective behavior in the system. The magnitude of the FB correlation strength is obtained for different gaps between pseudorapidity intervals and for different combinations of azimuthal windows, selected within the pseudorapidity intervals. The collision energy and multiplicity class dependence of the FB correlations is studied.

This work is supported by the Russian Science Foundation, GRANT 17-72-20045.

Presentation materials

erokhin_nucleus2020_poster_v3.pdf