1203.0921 (Jun Song et al.)

Effects of hadronization and resonance decay on charge balance function
in relativistic heavy ion collisions    [PDF]

Jun Song, Feng-lan Shao, Zuo-tang Liang

Based on two features of the partonic fireball produced at RHIC, i.e. the collectivity and local thermalization, the charge balance properties of constituent quark system just before hadronization are formulated. We find that these two features can sufficiently lead to the charge balance function (BF) of quark system having the longitudinal boost invariance and scaling properties in the rapidity space. The subsequent hadronization via quark combination mechanism still preserves these properties of BF due to the locality nature of the mechanism in the momentum space, and the hadronization slightly increases the width of BF. The decays of resonances also preserve longitudinal properties of BF and their effects on the width of BF are nontrivial.

View original: http://arxiv.org/abs/1203.0921