TY  - CONF
A1  - Rustamov, Anar
T1  - Multiplicity fluctuations of identified hadrons in central Pb+Pb collisions at the CERN
T2  - Proceedings of Science
N2  - We report on the event-by-event multiplicity fluctuations of identified particles in central Pb+Pb collisions measured by the NA49 experiment at the CERN SPS. Employing a novel approach we unfolded the moments of the unknown multiplicity distributions of protons (p), kaons (K), pions (π) and electrons. Using these moments we reconstructed an excitation function of the fluctuation measure νdyn[A;B], with A and B denoting different particle types. Specifically, we reconstructed νdyn for the [p, π], [p, K] and [K, π] pairs. The energy dependence of νdyn is in agreement with previously published NA49 results on the related measure σdyn. Moreover, for [K; p] and [K;p] pairs, we discovered a dependence of the fluctuation measure νdyn on the phase space coverage (acceptance). Interestingly for the [p,π] case no significant acceptance dependence was observed. These observations provide a likely explanation of the reported differences between measurements of NA49 and those of STAR in central Au+Au collisions.
Y1  - 2013
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/36539
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-365393
UR  - http://pos.sissa.it/archive/conferences/185/052/CPOD%202013_005.pdf
SN  - 1824-8039
N1  - (c) Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
VL  - 2013
IS  - PoS(CPOD 2013)005
SP  - 1
EP  - 10
PB  - SISSA
CY  - Trieste
ER  -