TY  - JOUR
A1  - Savchuk, Oleh
A1  - Poberezhnyuk, Roman V.
A1  - Gorenstein, Mark I.
T1  - Possible origin of HADES data on proton number fluctuations in Au+Au collisions
T2  - Physics Letters B
N2  - Recent data of the HADES Collaboration in Au+Au central collisions at sNN=2.4 GeV indicate large proton number fluctuations inside one unit of rapidity around midrapidity. This can be a signature of critical phenomena due to the strong attractive interactions between baryons. We study an alternative hypothesis that these large fluctuations are caused by the event-by-event fluctuations of the number of bare protons, and no interactions between these protons are assumed. The proton number fluctuations in five symmetric rapidity intervals Δy inside the region ΔY=1 are calculated using the binomial acceptance procedure. This procedure assumes the independent (uncorrelated) emission of protons, and it appears to be in agreement with the HADES data. To check this simple picture we suggest to calculate the correlation between proton multiplicities in non-overlapping rapidity intervals Δy1 and Δy2 placed inside ΔY=1.
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/78350
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-783504
SN  - 0370-2693
VL  - 835
IS  - 137540
PB  - Elsevier
CY  - Amsterdam
ER  -