Baryon stopping in the color glass condensate formalism: A phenomenological study

The net-baryon production at forward rapidities is investigated considering the color glass condensate formalism. We assume that at large energies the coherence of the projectile quarks is lost and that the leading baryon production mechanism changes from recombination to independent fragmentation. The phenomenological implications for net-baryon production in $pp/pA/AA$ collisions are analyzed and predictions for Large Hadron Collider energies are presented.

Figure 1

Net-baryon rapidity distributions in $p\text{Pb}$ collisions at LHC energies.

Figure 2

Net-baryon transverse momentum spectra in central $\text{AuAu}$ collisions at RHIC. Data from [25, 26, 27, 28, 29, 30].

Figure 3

Transverse momentum spectra in $\text{PbPb}$ collisions at $\sqrt{s}=2.76$ TeV and different rapidities. Upper and lower lines represent pions and protons, respectively.

Figure 4

Nuclear modification ratio $R_{pA}$ for net-proton production in $p\text{Pb}$ collisions at RHIC and LHC energies.

Figure 5

Transverse momentum dependence of the ratio between the cross sections for net-proton and net-pion production in $\text{PbPb}$ collisions at different values of rapidity and LHC energies.

Figure 6

Energy dependence of the $x_F$ distributions of pions and protons produced in $pp$, $p\text{Pb}$, and $\text{PbPb}$ collisions.