20 Corr Correlation p$_{t}$ greater 0.8 and less 4.0 GeV/c Au Au Central 200 GeV   0.9 Parton Bubble Model FIG. 16: Correlation function of pairs formed to exhibit the effects of longitudinal momentum boosts by the color electric field as defined in the text. This correlation shows that there are more aligned pairs (correlation is larger by ∼ 0.5% between 1.0 < Δ η 1 + Δ η 2 < 2.0 compared to between -2.0 < Δ η 1 + Δ η 2 < -1.0). Δ η 1 + Δ η 2 is equal to | Δ η 1 | + | Δ η 2 | . As explained in the text this means there are more pairs of pairs aligned in the same direction compared to pairs not aligned as predicted by the color electric field. The signs and more detail are also explained in the text. Δ P t . Our variable is related to the sum of the abso- lute values of the individual Δ P t ’s ( | Δ P $^{t}$1 | + | Δ P $^{t}$2 | ). We assign a sign to this sum such that if the sign of the individual Δ P t ’s are the same it is a plus sign, while if they are different it is a minus sign. For the flux tube the color magnetic field extends over a large pseudorapidity range where quarks and anti- quarks rotate around the flux tube axis, therefore we want to sample pairs at the different sides of the tube making a separation in φ (Δ φ ) between 40 ◦ to 48 ◦ . We are interested in sampling the pairs on the other side so we require the separation in η (Δ η ) be 0.2 or less. For the numerator of the correlation function we consider all combinations of unique pairs (sign ( | Δ P $^{t}$1 | + | Δ P $^{t}$2 | )) from a given central Au Au event divided by a mixed event denominator created from while for the π − it will be the other way around. This will lead to an anti-alignment between pairs. In Fig. 17 we show two pairs which would fall into the above cuts. Both pairs are at the limit of the opening angle cut θ 1 and θ 2 equal 16 ◦ . The p t of the plus particle for pair number 1 is 1.14 GeV/c, while the minus particle is 1.39 GeV/c. Thus Δ P $^{t}$1 is equal to -0.25 GeV/c. The p t of the plus particle for pair number 2 is 1.31 GeV/c, the minus particle is 0.91 GeV/c and Δ P $^{t}$2 is equal to 0.40 GeV/c. Finally the mean value shown on Fig. 17 is the mid-point between the π + and the π − where one really uses the vector sum of the π + and the π − which moves this point toward the harder pion. Considering the above cuts we defined a correla- tion function where we combine pairs each having a