Double differential PI+ production cross section in the angular range 120 to 150 mrad.. Errors shown are point-to-point only.

Double differential PI+ production cross section in the angular range 150 to 180 mrad.. Errors shown are point-to-point only.

Double differential PI+ production cross section in the angular range 180 to 210 mrad.. Errors shown are point-to-point only.

The measured F2 and xF3 at X = 0.125.

The measured F2 and xF3 at X = 0.175.

The measured F2 and xF3 at X = 0.225.

The measured F2 and xF3 at X = 0.275.

The measured F2 and xF3 at X = 0.350.

The measured F2 and xF3 at X = 0.450.

The measured F2 and xF3 at X = 0.550.

The measured F2 and xF3 at X = 0.650.

The measured R (=sigL/sigT)) at X = 0.020.

The measured R (=sigL/sigT)) at X = 0.045.

The measured R (=sigL/sigT)) at X = 0.080.

The measured R (=sigL/sigT)) at X = 0.125.

The measured R (=sigL/sigT)) at X = 0.175.

The measured R (=sigL/sigT)) at X = 0.225.

The measured R (=sigL/sigT)) at X = 0.275.

The measured R (=sigL/sigT)) at X = 0.350.

The measured R (=sigL/sigT)) at X = 0.450.

The measured R (=sigL/sigT)) at X = 0.550.

The measured R (=sigL/sigT)) at X = 0.650.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.020.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.045.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.080.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.125.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.175.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.225.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.275.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.350.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.450.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.550.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 25.0 GeV and X =0.650.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.020.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.045.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.080.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.125.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.175.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.225.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.275.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.350.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.450.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.550.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 35.0 GeV and X =0.650.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.020.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.045.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.080.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.125.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.175.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.225.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.275.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.350.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.450.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.550.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 45.0 GeV and X =0.650.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.020.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.045.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.080.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.125.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.175.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.225.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.275.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.350.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.450.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.550.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 55.0 GeV and X =0.650.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.020.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.045.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.080.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.125.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.175.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.225.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.275.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.350.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.450.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.550.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 70.0 GeV and X =0.650.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.020.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.045.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.080.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.125.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.175.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.225.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.275.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.350.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.450.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.550.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 90.0 GeV and X =0.650.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.020.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.045.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.080.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.125.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.175.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.225.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.275.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.350.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.450.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.550.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 110.0 GeV and X =0.650.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.020.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.045.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.080.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.125.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.175.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.225.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.275.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.350.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.450.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.550.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 130.0 GeV and X =0.650.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.020.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.045.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.080.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.125.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.175.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.225.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.275.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.350.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.450.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.550.

Measured cross sections for neutrino and anti-neutrino interactions at a mean energy 170.0 GeV and X =0.650.

Nuclear modification factor as a function of PT, for 10-20% central reactions Note that the systematic error given is related to the the uncertainties in the p+p measurements.An additional systematic error, symmetrical on the + and - side, related to the uncertainties in the Au+Au measurement, is given in the second column. Another, PT-independant, 13%systematic error due to the uncertainty on the overlap function and the Pi0 yield normalization is to add.

Nuclear modification factor as a function of PT, for 20-40% central reactions Note that the systematic error given is related to the the uncertainties in the p+p measurements.An additional systematic error, symmetrical on the + and - side, related to the uncertainties in the Au+Au measurement, is given in the second column. Another, PT-independant, 13%systematic error due to the uncertainty on the overlap function and the Pi0 yield normalization is to add.

Nuclear modification factor as a function of PT, for 40-60% central reactions Note that the systematic error given is related to the the uncertainties in the p+p measurements.An additional systematic error, symmetrical on the + and - side, related to the uncertainties in the Au+Au measurement, is given in the second column. Another, PT-independant, 13%systematic error due to the uncertainty on the overlap function and the Pi0 yield normalization is to add.

Fully corrected assorted $\pi^{0}$-hadron conditional pair distributions for $d$+Au collisions centrality 0-88% and $p$+$p$ collisions. The trigger $\pi^0$s are within 5 < $p_{T,trig}$ < 10 GeV/$c$ and are correlated with hadrons with $p_{T,assoc}$ of 1.5-2 GeV/$c$, 2-3GeV/$c$, 3-4 GeV/$c$, and 4-5 GeV/$c$.

Near- and far-side widths as a function of $p_{T, assoc}$ for charged hadron azimuthal correlations from minimumbias $d$+Au collisions.

Near-side width, far-side width as a function of $p_{T,assoc}$ for a charged pion and neutral pion triggers from the $p_{T,trig}$ range of 5-10 GeV/$c$ in minimum bias $d$+Au collisions.

Near-side width, far-side width as a function of $p_{T,assoc}$ for a charged pion and neutral pion triggers from the $p_{T,trig}$ range of 5-10 GeV/$c$ in minimum bias $d$+Au collisions.

Near- and far-side conditional yields as a function of $p_{T, assoc}$ for charged hadron triggers (2.5−4 GeV/$c$) and associated charged hadrons from $d$+Au collisions.

Near- and far-side conditional yields as a function of $p_{T, assoc}$ for charged hadron triggers (4−6 GeV/$c$) and associated charged hadrons from $d$+Au collisions.

Near- and far-side conditional yields as a function of $p_{T, assoc}$ for charged pion triggers (5−10 GeV/$c$) and associated charged hadrons from minimum-bias $d$+Au collisions.

Near- and far-side conditional yields as a function of $p_{T, assoc}$ for neutral pion triggers (5−10 GeV/$c$) and associated charged hadrons from minimum-bias $d$+Au collisions.

Near- and far-side widths and conditional yields as a function of $N_{coll}$ for charged hadron triggers (2.5−4 GeV/$c$) and associated charged hadrons (1–2.5 GeV/$c$) from $d$+Au collisions.

Near- and far-side widths and conditional yields as a function of centrality for neutral pion triggers (5−10 GeV/$c$) and associated charged hadrons (2–3 GeV/$c$) from $d$+Au collisions.

The extracted $\sqrt{<j^2_T>}$ for minimum-bias $d$+Au collisions from all four dihadron correlations. The trigger $p_T$ ranges are 3 - 5 GeV/$c$, 5 - 10 GeV/$c$ and 5 - 10 GeV/$c$ for $h^{\pm}$ - $h^{\pm}$, $\pi^0$ - $h^{\pm}$ and $\pi^{\pm}$ - $h^{\pm}$ assorted-$p_T$ correlations.

The extracted $\sqrt{<j^2_T>}$ for minimum-bias $d$+Au collisions from all four dihadron correlations. The trigger $p_T$ ranges are 3 - 5 GeV/$c$, 5 - 10 GeV/$c$ and 5 - 10 GeV/$c$ for $h^{\pm}$ - $h^{\pm}$, $\pi^0$ - $h^{\pm}$ and $\pi^{\pm}$ - $h^{\pm}$ assorted-$p_T$ correlations.

The extracted $\sqrt{<j^2_T>}$ for minimum-bias $d$+Au collisions from all four dihadron correlations. The trigger $p_T$ ranges are 3 - 5 GeV/$c$, 5 - 10 GeV/$c$ and 5 - 10 GeV/$c$ for $h^{\pm}$ - $h^{\pm}$, $\pi^0$ - $h^{\pm}$ and $\pi^{\pm}$ - $h^{\pm}$ assorted-$p_T$ correlations.

The extracted $\sqrt{<j^2_T>}$ for minimum-bias $d$+Au collisions from all four dihadron correlations. The trigger $p_T$ ranges are 3 - 5 GeV/$c$, 5 - 10 GeV/$c$ and 5 - 10 GeV/$c$ for $h^{\pm}$ - $h^{\pm}$, $\pi^0$ - $h^{\pm}$ and $\pi^{\pm}$ - $h^{\pm}$ assorted-$p_T$ correlations.

$<sin^2(\phi_{jj})>$ for minimum bias $d$+Au collisions as function of associated particle $p_T$ for $\pi^{\pm}$ - $h^{\pm}$ and $\pi^0$ - $h^{\pm}$ correlations where the trigger particles have a $p_T$ between 5 - 10 GeV/$c$.

$<sin^2(\phi_{jj})>$ for minimum bias $d$+Au collisions as function of associated particle $p_T$ for $\pi^{\pm}$ - $h^{\pm}$ and $\pi^0$ - $h^{\pm}$ correlations where the trigger particles have a $p_T$ between 5 - 10 GeV/$c$.

$<sin^2(\phi_{jj})>$ for minimum bias $d$+Au collisions as function of trigger particle $p_T$ for $\pi^{\pm}$ - $h^{\pm}$ and $\pi^0$ - $h^{\pm}$ correlations.

$<sin^2(\phi_{jj})>$ for minimum bias $d$+Au collisions as function of trigger particle $p_T$ for $\pi^{\pm}$ - $h^{\pm}$ and $\pi^0$ - $h^{\pm}$ correlations.

Near-side and far-side $p_{out}$ distributions for minimum bias $d$+Au collisions obtained from $\pi^{\pm}$ - $h^{\pm}$ correlation. The trigger is 5 < $p_{T,trig}$ < 10 GeV/$c$, the associated particle is 0.5 < $p_{T,assoc}$ < 5.0 GeV/$c$.

Conditional yield as a function of $x_E$ for near-side and far-side for $\pi^{\pm}$ - $h^{\pm}$ and $\pi^0$ - $h^{\pm}$ from minimum-bias $d$+Au collisions.

Conditional yield as a function of $x_E$ for near-side and far-side for $\pi^{\pm}$ - $h^{\pm}$ and $\pi^0$ - $h^{\pm}$ from minimum-bias $d$+Au collisions.

Conditional yield as a function of $x_E$ for near-side and far-side correlations for $\pi^{\pm}$ - $h^{\pm}$ correlations from minimum-bias $d$+Au collisions. The trigger pions are 5 < $p_{T,trig}$ < 6 GeV/$c$.

Conditional yield as a function of $x_E$ for near-side and far-side correlation for $\pi^{\pm}$ - $h^{\pm}$ correlation for several different trigger $p_T$s for minimum-bias $d$+Au collisions.

Far-side conditional yield as a function of $p_{T,trig}$ for different ranges of $x_E$ for $\pi^{\pm}$ - $h^{\pm}$ correlation for minimum-bias $d$+Au collisions.

Far-side conditional yield as a function of $p_{T,trig}$ for different ranges of $x_E$ for $\pi^{\pm}$ - $h^{\pm}$ correlation for minimum-bias $d$+Au collisions.

Far-side conditional yield as a function of $p_{T,trig}$ for different ranges of $x_E$ for $\pi^{\pm}$ - $h^{\pm}$ correlation for minimum-bias $d$+Au collisions.

Far-side conditional yield as a function of $p_{T,trig}$ for different ranges of $x_E$ for $\pi^{\pm}$ - $h^{\pm}$ correlation for minimum-bias $d$+Au collisions.

The comparison of the $\sqrt{<j^2_T>}$ values between $d$+Au and $p$+$p$ for the $\pi^{\pm}$ - $h^{\pm}$ correlations and $\pi^0$ - $h^{\pm}$ correlations. The trigger pion range is 5 - 10 GeV/$c$.

The comparison of the $\sqrt{<j^2_T>}$ values between $d$+Au and $p$+$p$ for the $\pi^{\pm}$ - $h^{\pm}$ correlations and $\pi^0$ - $h^{\pm}$ correlations. The trigger pion range is 5 - 10 GeV/$c$.

Quadrature difference between minimum-bias $d$+Au and $p$+$p$ $<sin^2(\phi_{jj})>$ values.

Quadrature difference between minimum-bias $d$+Au and $p$+$p$ $<sin^2(\phi_{jj})>$ values.

The comparison of the $p_{out}$ distribution at the near-side and far-side between central $d$+Au collisions and $p$+$p$ collisions. Results are obtained for $\pi^{\pm}$ - $h^{\pm}$ correlations with the associated hadron range 0.5 < $p_{T,assoc}$ < 5 GeV/$c$ and trigger pion range of 5 < $p_{T,trig}$ < 10 GeV/$c$.

The comparison of the $x_E$ distribution from $\pi^{\pm}$ - $h^{\pm}$ correlation at the near-side and far-side between minimum bias $d$+Au collisions and $p$+$p$ collisions. The trigger $\pi^{\pm}$ are from 5 - 10 GeV/$c$.

Far-side conditional yield as a function of $p_{T,trig}$ for different ranges of $x_E$ from $p$+$p$ collisions, triggers are $\pi^{\pm}$ from 5 - 10 GeV/$c$.

Far-side conditional yield as a function of $p_{T,trig}$ for different ranges of $x_E$ from $p$+$p$ collisions, triggers are $\pi^{\pm}$ from 5 - 10 GeV/$c$.

Far-side conditional yield as a function of $p_{T,trig}$ for different ranges of $x_E$ from $p$+$p$ collisions, triggers are $\pi^{\pm}$ from 5 - 10 GeV/$c$.

The fitted fractional change in $dN/d_{x_E}$ per unit $p_{T,trig}$ of the far-side conditional yield for different ranges of $x_E$.

Centrality dependent near and far $CY(p_T)$ for $\pi^{\pm}$ - $h^{\pm}$ correlations and $\pi^0$ - $h^{\pm}$ correlations.

Centrality dependent near and far $CY(p_T)$ for $\pi^{\pm}$ - $h^{\pm}$ correlations and $\pi^0$ - $h^{\pm}$ correlations.

Centrality dependence to the ratio of near and far $CY(p_T)$ for $d$+Au to $p$+$p$.

Centrality dependence to the ratio of near and far $CY(p_T)$ for $d$+Au to $p$+$p$.

Near- and far-side widths as a function of $p_{T, trig}$ for charged pion triggers and associated charged hadrons (2–4.5 Gev/$c$) from minimum-bias $d$+Au collisions.

Near- and far-side widths as a function of $p_{T, trig}$ for neutral pion triggers and associated charged hadrons (2–4.5 Gev/$c$) from minimum-bias $d$+Au collisions.

The ratio of the hadronic decay photon $v_2$ over inclusive photon $v_2$ ($v_2^{b.g}/v_2^{inclusive \gamma}$) compared with the direct photon excess ratio $R = (N_{direct \gamma} + N_{b.g})/N_{b.g}$.

The ratio of the hadronic decay photon $v_2$ over inclusive photon $v_2$ ($v_2^{b.g}/v_2^{inclusive \gamma}$) compared with the direct photon excess ratio $R = (N_{direct \gamma} + N_{b.g})/N_{b.g}$.

Mean PT^2 values at negative, null and positive XF for D+AU reaction The mean PT is obtained with a phenomenological fit of the J/PSI distribution in PT of the form (1/(2*PI*PT))*D2(SIG)/DPT*DY = A ( 1+(PT/B)^2)^-6.

Mean PT^2 values at negative,null and positive XF for P+P reaction The mean PT is obtained with a phenomenological fit of the J/PSI distribution in PT of the form (1/(2*PI*PT))*D2(SIG)/DPT*DY = A ( 1+(PT/B)^2)^-6.

PT dependence of the Alpha power for Xf ~ -0.08.

PT dependance of the Alpha power for Xf ~ 0.

PT dependance of the Alpha power for Xf ~ 0.09.

Centrality dependance of the Nuclear modification factor for rapidity : y=-1.7. Centrality is represented by the number of collisions.

Centrality dependance of the Nuclear modification factor for rapidity y=0.Centrality is represented by the number of collisions.

Centrality dependance of the Nuclear modification factor for rapidity y=1.8.Centrality is represented by the number of collisions.