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138 Results<br />

[pb/GeV]<br />

dσ / dp<br />

15<br />

<strong>10</strong><br />

5<br />

LO > 0.8 x γ<br />

LO+NLO<br />

LO<br />

No box<br />

4<br />

a. b.<br />

[pb/deg]<br />

dσ / d∆Φ<br />

3<br />

2<br />

1<br />

LO > 0.8 x γ<br />

[pb/GeV]<br />

dσ / dp<br />

<strong>10</strong><br />

0 2 4 6 8<br />

p [GeV]<br />

8<br />

6<br />

4<br />

2<br />

LO < 0.8 x γ<br />

2<br />

c. d.<br />

[pb/deg]<br />

dσ / d∆Φ<br />

130 140 150 160 170 180<br />

∆Φ [deg]<br />

1.5<br />

1<br />

0.5<br />

LO < 0.8 x γ<br />

0 2 4 6 8<br />

p [GeV]<br />

130 140 150 160 170 180<br />

∆Φ [deg]<br />

Figure 9.7: The measured cross sections in bins of p ⊥ (a, c) and ∆Φ (b, d) in the<br />

direct (a, b) and resolved (c, d) enhanced phase space plotted together with the FGH<br />

calculation (LO+NLO - solid red line). The calculation taking into account only leading<br />

order diagrams (LO) is plotted as dotted gray histogram and the one taking into account<br />

all except the box diagram is plotted as dashed blue histogram.

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