  When searching for anomalous chiral effects in heavy-ion collisions, one of
the most crucial points is the relationship between the signal and the
background. In this letter, we present a simulation in a modified blast wave
model at LHC energy, which can simultaneously characterize the majority of
measurable quantities, in particular, the chiral magnetic effect (CME) and the
chiral magnetic wave (CMW) observables. Such a universal description, for the
first time, naturally and quantitatively unifies the CME and the CMW studies
and brings to light the connection with the local charge conservation (LCC)
background. Moreover, a simple phenomenological approach is performed to
introduce the signals, aiming at quantifying the maximum allowable strength of
the signals within experimental precision. Such a constraint provides a novel
perspective to understand the experimental data and sheds new light on the
study of anomalous chiral effects as well as charge dependent correlations.
