| Issue |
EPJ Web Conf.
Volume 204, 2019
XXIV International Baldin Seminar on High Energy Physics Problems “Relativistic Nuclear Physics and Quantum Chromodynamics” (Baldin ISHEPP XXIV)
|
|
|---|---|---|
| Article Number | 07013 | |
| Number of page(s) | 7 | |
| Section | NICA/MPD | |
| DOI | https://doi.org/10.1051/epjconf/201920407013 | |
| Published online | 03 April 2019 | |
https://doi.org/10.1051/epjconf/201920407013
Pseudorapidity dependence of multiplicity and transverse momentum fluctuations at the SPS energies
Saint Petersburg State University, Saint Petersburg, Russia
* e-mail: daria.prokhorova@cern.ch
Published online: 3 April 2019
A search for the critical behavior of strongly interacting matter was done by studying the event-by-event fluctuations of multiplicity and transverse momentum of charged hadrons produced in inelastic p+p collisions and central Be+Be and Ar+Sc collisions at the NA61/SHINE experiment. Results for energy dependence of the scaled variance of the multiplicity distribution and for two families of strongly intensive measures of multiplicity and transverse momentum fluctuations Δ[PT, N] and Σ[PT, N] were presented. The study was performed in rapidity-integrated way and for different pseudorapidity regions, which corresponds to changing the rapidity averaged baryo-chemical potential and the value of temperature at the freeze-out stage. The strongly intensive measure Σ[NF, NB], evaluated in rapidity separated windows, was used in the analysis of short- and long-range multiplicity correlations and is considered to be sensitive for the initial conditions of particle production such as string fragmentation and fusion.
© The Authors, published by EDP Sciences, 2019
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