Feynman Diagram vs Unitarity Cut 拉英庄其燕连 。5。 。。,是。 46。 正在立以立议议 4A A出 议议X A A a A AA T A A A Feynman diagrams:a broken vase Imposing cut condition +P2 P3 loop amplitude two on shell tree amplitudes 8 Feynman Diagram vs Unitarity Cut Imposing cut condition loop amplitude two on shell tree amplitudes 8 A A A A F F F F T1 G1 N1 A A A A y y y y T1 C1 N2 A A A A y y y y T1 C2 N3 A A A A U U U U T1 G2 N4 A A A A c c c c T1 C1 N5 A A A A c c c c T1 C2 N6 A A A A V V V V T1 G3 N7 A A A A A A A A T1 C1 N8 A A A A F F F F T2 G1 N9 A A A A y y y y T2 C1 N10 A A A A y y y y T2 C2 N11 A A A A U U U U T2 G2 N12 A A A A c c c c T2 C1 N13 A A A A c c c c T2 C2 N14 A A A A V V V V T2 G3 N15 A A A A A A A A T2 C1 N16 A A A A F F F F T3 G1 N17 A A A A y y y T3 C1yN18 A A A A y y y T3 C2yN19 A A A A U U U T3 G2UN20 A A A A c c c T3 C1c N21 A A A A c c c T3 C2c N22 A A A A V V V T3 G3VN23 A A A A A A A T3 C1AN24 A A Æ A A Feynman diagrams: a broken vase