In the framework of HIJING/BbarB v2.0 model, we have studied the possible role of baryon junction loops
in nucleus-nucleus collisions. We show that junction-anti(junction) (JJbar) loops with
an enhanced intrinsic transverse momentum (k_T approximately 1 GeV/c),
and default values for the suppression factors corresponding to a string tension of k_0 = 1 GeV/fm
provide a partial explanation of the observed baryon/meson anomaly at RHIC.
One of the main assumptions is that the strings could survive and fragment,
and in particular populate the mid to low p_T range.
In contrast, in the recombination picture or in the hydrodynamical approach
all coherent strings are assumed to become rapidly incoherent resulting in rapid thermalization.
In this analysis we further explore dynamical effects associated
with long-range coherent fields, i.e strong-color fields (SCF).
In the case of quark-gluon plasma creation it is necessary
to modify the dynamics of particle vacuum production at short time scales
and thus the abundance of a newly produced particles may deviate
considerably from the values obtained for the constant field.
Strangeness enhancement, strong baryon transport, and increase
of intrinsic k_T are all expected consequences of SCF.
This can be modeled in microscopic approaches as
an increase of the effective string tension that controls the
quark-(anti)quark and diquark-(anti)diquark pair creation rates
and strangeness suppression factors.
Using this model the particle species dependence of nuclear modification
factors are analyzed for d+Au and Au+Au collisions at 200A GeV.
An increase of the string tension from k_0= 1 GeV/fm,
to in medium values of 1.5 GeV/fm and 2.0 GeV/fm, for d+Au and Au+Au
respectively, leads to a modification of the strangeness suppression
factors originating from the Schwinger mechanisms. The assumed SCF leads to a consistent description of the
measured differences in nuclear modification factors R_AA and R_CP,
for both reactions. An important consequence of modified strong color electric fields is the prediction of a significant enhancement
of the (multi)strange (anti)hyperons production in heavy-ion collisions.