Speaker
Mr
Dmitry Neverov
(Saint Petersburg State University)
Description
Correlations between various observables, e.g. multiplicities of particles produced in pp collisions at the LHC energies within intervals separated in pseudorapidity and azimuth angle, could be a sensitive tool to analyze hadron collisions dynamics and test hadron production models.
In this report we present results of studies of multiplicity correlation coefficient topology for like- and unlike-sign pairs of charged particles using PYTHIA8 event generator [1]. Correlation coefficients were extracted using long-range forward-backward correlation method [2].
Peculiar behavior of correlation coefficient topology of net-charge is obtained in short-range region. Analysis shows that effects of Bose-Einstein statistics [3] have strong influence in this region of such correlations.
The results indicate the necessity of experimental studies of net-charge correlation topology that could bring new constraints to PYTHIA8 tunes.
References:
[1] http://home.thep.lu.se/~torbjorn/Pythia.html
[2] ALICE collaboration, ALICE Physics Performance Report, vol. 2, part 2 (6.5.15, Long-range correlations, pp. 452-455), CERN/LHCC 2005-030, 5 December 2005
[3] L. Lönnblad, T. Sjöstrand, Eur.Phys.J.C2:165-180, (1998) //arXiv:hep-ph/9711460
Author
Mr
Dmitry Neverov
(Saint Petersburg State University)
