We study the net-charge fluctuation $D$-measure variable, in high-energy heavy-ion collisions in heavy-ion jet interaction generator (HIJING), ultrarelativistic quantum molecular dynamics (UrQMD), and hadron resonance gas (HRG) models for various center-of-mass energies ($\sqrt{s_{{}_{NN}}}$). The effects of kinematic acceptance and resonance decay, in the pseudorapidity acceptance interval ($\mathrm{\Delta }\eta$) and lower transverse momentum ($p_T^{\text{min}}$) threshold, on fluctuation measures are discussed. A strong dependence of $D$ with the $\mathrm{\Delta }\eta$ in HIJING and UrQMD models is observed as opposed to results obtained from the HRG model. The dissipation of fluctuation signal is estimated by fitting the $D$ measure as a function of the $\mathrm{\Delta }\eta$. An extrapolated function for higher $\mathrm{\Delta }\eta$ values at lower $\sqrt{s_{{}_{NN}}}$ is different from the results obtained from models. Particle species dependence of $D$ and the effect of the $p_T^{\text{min}}$ selection threshold are discussed in HIJING and HRG models. The comparison of $D$, at midrapidity, of net-charge fluctuations at various $\sqrt{s_{{}_{NN}}}$ obtained from the models with the data from the A Large Ion Collider Experiment (ALICE) experiment is discussed. The results from the present paper as a function of $\mathrm{\Delta }\eta$ and $\sqrt{s_{{}_{NN}}}$ will provide a baseline for comparison to experimental measurements.

• Received 24 February 2017
• Revised 10 April 2017

DOI:https://doi.org/10.1103/PhysRevC.95.054905