TY  - JOUR
A1  - Steinheimer, Jan
A1  - Wang, Yongjia
A1  - Mukherjee, Ayon
A1  - Ye, Yunxiao
A1  - Guo, Chenchen
A1  - Li, Qingfeng
A1  - Stöcker, Horst
T1  - Nuclear interactions and net-proton number fluctuations in heavy ion collisions at the SIS18 accelerator
T2  - Physics Letters B
N2  - The effect of nuclear interactions on measurable net-proton number fluctuations in heavy ion collisions at the SIS18/GSI accelerator is investigated. The state of the art UrQMD model including interaction potentials is employed. It is found that the nuclear forces enhance the baryon number cumulants, as predicted from grand canonical thermodynamical models. The effect however is smeared out for proton number fluctuations due to iso-spin randomization and global baryon number conservation, which decreases the cumulant ratios. For a rapidity acceptance window larger than Δy > 0.4 the effects of global baryon number conservation dominate and all cumulant ratios are significantly smaller than 1.
KW  - Proton number fluctuations
KW  - Nuclear interactions
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54782
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-547823
SN  - 1873-2445
SN  - 0370-2693
VL  - 785.2018
SP  - 40
EP  - 45
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  -