#include "isajet/pilot.h" FUNCTION WZSS(T,U,T1,U1,T3,U3,P1,P2) C DECAY DISTRIBUTION FOR W- Z0 PAIRS FROM SCHOONSCHIP(1980). C SQUARE OF S GRAPH. #include "isajet/itapes.inc" #include "isajet/wwpar.inc" DIMENSION P1(4),P2(4) #if defined(CERNLIB_DOUBLE) DOUBLE PRECISION WZSS DOUBLE PRECISION T,U,T1,U1,T3,U3,P1,P2 DOUBLE PRECISION WM4,ZM4,WZM2,CSXCS #endif WM4=WM2**2 ZM4=ZM2**2 WZM2=WM2*ZM2 CSXCS=CS**2 WZSS= 1 +CSXCS*CV3*(-32.*WM2*ZM2*WM4-32.*WM2*ZM2*ZM4-128.*WM2*T1*T3**2-1 1 28.*WM2*T1*ZM4+128.*WM2*U1*T3*U3-64.*WM2*T3*ZM4-64.*WM2*S13*ZM4+ 1 64.*ZM2*T1*U1*T3+64.*ZM2*T1*U1*U3-64.*ZM2*T1*WM4-64.*ZM2*T1**2*T 1 3-64.*ZM2*U1**2*U3-128.*ZM2*T3*WM4-64.*ZM2*S13*WM4+128.*T1*U1*T3 1 *U3-192.*T1*T3*WZM2-64.*T1*S13*WZM2-64.*T1**2*T3**2-32.*T1**2*WZ 1 M2-32.*T1**2*ZM4+64.*U1*U3*WZM2-64.*U1*S13*WZM2-64.*U1**2*U3**2- 1 32.*U1**2*WZM2-32.*U1**2*ZM4-128.*T3*S13*WZM2-64.*T3**2*WZM2-64. 1 *T3**2*WM4-64.*S13**2*WZM2-96.*WM4*ZM4) WZSS=WZSS 1 +CSXCS*CV3*T*(64.*WM2*T1*T3-32.*WM2*U1*T3-32.*WM2*U1*U3-64.*WM2* 1 T3*S13+64.*WM2*T3**2+96.*WM2*ZM4+64.*ZM2*T1*T3-32.*ZM2*T1*S13+32 1 .*ZM2*T1**2-32.*ZM2*U1*T3-32.*ZM2*U1*U3+32.*ZM2*U1*S13+32.*ZM2*U 1 1**2+96.*ZM2*WM4-32.*T1*U1*T3-32.*T1*U1*U3-64.*T1*T3*S13+64.*T1* 1 T3**2+128.*T1*WZM2+32.*T1*ZM4+32.*T1**2*T3-64.*U1*T3*U3+64.*U1*U 1 3*S13+32.*U1**2*U3+128.*T3*WZM2+32.*T3*WM4+32.*S13*WZM2) WZSS=WZSS 1 +CSXCS*CV3*T*U*(-32.*WM2*T3+32.*WM2*S13-32.*ZM2*T1+32.*ZM2*S13-3 1 2.*T1*T3+32.*T1*S13+64.*U1*T3+32.*U1*U3+32.*U1*S13+64.*T3*S13+64 1 .*S13**2-32.*WZM2) 1 +CSXCS*CV3*T**2*(-32.*WM2*T3+32.*WM2*S13-32.*ZM2*T1+32.*ZM2*S13- 1 32.*T1*T3+32.*T1*S13+32.*U1*T3+32.*U1*U3+64.*T3*S13-64.*WZM2) 1 +CSXCS*CV3*T**2*U*(-32.*S13) 1 +CSXCS*CV3*T**3*(-32.*S13) WZSS=WZSS 1 +CSXCS*CV3*U*(64.*WM2*T1*T3-32.*WM2*U1*T3-32.*WM2*U1*U3+64.*WM2* 1 T3*S13+64.*WM2*T3**2+32.*WM2*ZM4+64.*ZM2*T1*T3+32.*ZM2*T1*S13+32 1 .*ZM2*T1**2-32.*ZM2*U1*T3-32.*ZM2*U1*U3-32.*ZM2*U1*S13+32.*ZM2*U 1 1**2+32.*ZM2*WM4-32.*T1*U1*T3-32.*T1*U1*U3+64.*T1*T3*S13+64.*T1* 1 T3**2+64.*T1*WZM2+32.*T1*ZM4+32.*T1**2*T3-64.*U1*T3*U3-64.*U1*U3 1 *S13+32.*U1**2*U3+64.*T3*WZM2+32.*T3*WM4+32.*S13*WZM2) 1 +CSXCS*CV3*U**2*(32.*U1*T3+32.*U1*S13) WZSS=WZSS 1 +CSXCS*CA3*(32.*WM2*ZM2*WM4+32.*WM2*ZM2*ZM4+128.*WM2*T1*ZM4+64.* 1 WM2*T3*ZM4+64.*WM2*S13*ZM4+64.*ZM2*T1*U1*T3-64.*ZM2*T1*U1*U3+64. 1 *ZM2*T1*WM4+64.*ZM2*T1**2*T3-64.*ZM2*U1**2*U3+128.*ZM2*T3*WM4+64 1 .*ZM2*S13*WM4+192.*T1*T3*WZM2+64.*T1*S13*WZM2+32.*T1**2*WZM2+32. 1 *T1**2*ZM4-64.*U1*U3*WZM2-64.*U1*S13*WZM2-32.*U1**2*WZM2-32.*U1* 1 *2*ZM4+96.*WM4*ZM4) WZSS=WZSS 1 +CSXCS*CA3*T*(-64.*WM2*T1*T3-32.*WM2*U1*T3+32.*WM2*U1*U3-96.*WM2 1 *ZM4-64.*ZM2*T1*T3+32.*ZM2*T1*S13-32.*ZM2*T1**2-32.*ZM2*U1*T3+32 1 .*ZM2*U1*U3+32.*ZM2*U1*S13+32.*ZM2*U1**2-96.*ZM2*WM4-32.*T1*U1*T 1 3+32.*T1*U1*U3-128.*T1*WZM2-32.*T1*ZM4-32.*T1**2*T3+32.*U1**2*U3 1 -128.*T3*WZM2-32.*T3*WM4-32.*S13*WZM2) 1 +CSXCS*CA3*T*U*(32.*WM2*T3-32.*WM2*S13+32.*ZM2*T1-32.*ZM2*S13+32 1 .*T1*T3-32.*T1*S13+64.*U1*T3-32.*U1*U3+32.*U1*S13+32.*WZM2) WZSS=WZSS 1 +CSXCS*CA3*T**2*(32.*WM2*T3-32.*WM2*S13+32.*ZM2*T1-32.*ZM2*S13+3 1 2.*T1*T3-32.*T1*S13+32.*U1*T3-32.*U1*U3+64.*WZM2) 1 +CSXCS*CA3*T**2*U*(32.*S13) 1 +CSXCS*CA3*T**3*(32.*S13) WZSS=WZSS 1 +CSXCS*CA3*U*(-64.*WM2*T1*T3-32.*WM2*U1*T3+32.*WM2*U1*U3-32.*WM2 1 *ZM4-64.*ZM2*T1*T3-32.*ZM2*T1*S13-32.*ZM2*T1**2-32.*ZM2*U1*T3+32 1 .*ZM2*U1*U3-32.*ZM2*U1*S13+32.*ZM2*U1**2-32.*ZM2*WM4-32.*T1*U1*T 1 3+32.*T1*U1*U3-64.*T1*WZM2-32.*T1*ZM4-32.*T1**2*T3+32.*U1**2*U3- 1 64.*T3*WZM2-32.*T3*WM4-32.*S13*WZM2) 1 +CSXCS*CA3*U**2*(32.*U1*T3+32.*U1*S13) RETURN END