ISAJET/code/wwss.F

   1 #include "isajet/pilot.h"
   2       FUNCTION WWSS(T,U,T1,U1,T3,U3)
   3 C          DECAY DISTRIBUTION FOR W+ W- PAIRS FROM SCHOONSCHIP(1980).
   4 C          SQUARE OF S GRAPH.
   5 #include "isajet/itapes.inc"
   6 #include "isajet/wwpar.inc"
   7 #if defined(CERNLIB_DOUBLE)
   8       DOUBLE PRECISION WWSS
   9       DOUBLE PRECISION T,U,T1,U1,T3,U3
  10       DOUBLE PRECISION CV2A2
  11 #endif
  12       CV2A2=CV**2+CA**2
  13       WWSS=
  14      1 +CV*CA*T*(-64.*T1*U1*T3+64.*T1*U1*U3+64.*T1*T3*U3+64.*T1*T3**2-6
  15      1 4.*T1**2*T3-64.*U1*T3*U3-64.*U1*U3**2+64.*U1**2*U3)
  16      1 +CV*CA*T*U*(-128.*T1*U3-64.*T1*S13+128.*U1*T3+64.*U1*S13+64.*T3*
  17      1 S13-64.*U3*S13)
  18      1 +CV*CA*T*WM2*(128.*T1*U3+64.*T1*S13-64.*T1**2-128.*U1*T3+64.*U1*
  19      1 S13+64.*U1**2-64.*T3*S13+64.*T3**2-64.*U3*S13-64.*U3**2)
  20      1 +CV*CA*T**2*(-64.*T1*U3-64.*T1*S13+64.*U1*T3+64.*T3*S13)
  21      1 +CV*CA*U*(-64.*T1*U1*T3+64.*T1*U1*U3+64.*T1*T3*U3+64.*T1*T3**2-6
  22      1 4.*T1**2*T3-64.*U1*T3*U3-64.*U1*U3**2+64.*U1**2*U3)
  23       WWSS=WWSS
  24      1 +CV*CA*U*WM2*(128.*T1*U3-64.*T1*S13-64.*T1**2-128.*U1*T3-64.*U1*
  25      1 S13+64.*U1**2+64.*T3*S13+64.*T3**2+64.*U3*S13-64.*U3**2)
  26      1 +CV*CA*U**2*(-64.*T1*U3+64.*U1*T3+64.*U1*S13-64.*U3*S13)
  27      1 +CV*CA*WM2*(128.*T1*U1*T3-128.*T1*U1*U3-128.*T1*T3*U3-128.*T1*T3
  28      1 **2+128.*T1**2*T3+128.*U1*T3*U3+128.*U1*U3**2-128.*U1**2*U3)
  29      1 +CV*CA*WM2**2*(128.*T1*S13+128.*T1**2-128.*U1*S13-128.*U1**2-128
  30      1 .*T3*S13-128.*T3**2+128.*U3*S13+128.*U3**2)
  31      1 +CV2A2*(128.*T1*U1*T3*U3-64.*T1**2*T3**2-64.*U1**2*U3**2)
  32       WWSS=WWSS
  33      1 +CV2A2*T*(-32.*T1*U1*T3-32.*T1*U1*U3-32.*T1*T3*U3-64.*T1*T3*S13+
  34      1 32.*T1*T3**2+32.*T1**2*T3-32.*U1*T3*U3+64.*U1*U3*S13+32.*U1*U3**
  35      1 2+32.*U1**2*U3)
  36      1 +CV2A2*T*U*(64.*T1*U3+32.*T1*S13+64.*U1*T3+32.*U1*S13+32.*T3*S13
  37      1 +32.*U3*S13+64.*S13**2)
  38      1 +CV2A2*T*WM2*(-64.*T1*U3-32.*T1*S13+32.*T1**2-64.*U1*T3+32.*U1*S
  39      1 13+32.*U1**2-32.*T3*S13+32.*T3**2+32.*U3*S13+32.*U3**2)
  40      1 +CV2A2*T**2*(32.*T1*U3+32.*T1*S13+32.*U1*T3+32.*T3*S13)
  41       WWSS=WWSS
  42      1 +CV2A2*U*(-32.*T1*U1*T3-32.*T1*U1*U3-32.*T1*T3*U3+64.*T1*T3*S13+
  43      1 32.*T1*T3**2+32.*T1**2*T3-32.*U1*T3*U3-64.*U1*U3*S13+32.*U1*U3**
  44      1 2+32.*U1**2*U3)
  45      1 +CV2A2*U*WM2*(-64.*T1*U3+32.*T1*S13+32.*T1**2-64.*U1*T3-32.*U1*S
  46      1 13+32.*U1**2+32.*T3*S13+32.*T3**2-32.*U3*S13+32.*U3**2)
  47      1 +CV2A2*U**2*(32.*T1*U3+32.*U1*T3+32.*U1*S13+32.*U3*S13)
  48      1 +CV2A2*WM2*(64.*T1*U1*T3+64.*T1*U1*U3+64.*T1*T3*U3-64.*T1*T3**2-
  49      1 64.*T1**2*T3+64.*U1*T3*U3-64.*U1*U3**2-64.*U1**2*U3)
  50       WWSS=WWSS
  51      1 +CV2A2*WM2**2*(-64.*T1*S13-64.*T1**2-64.*U1*S13-64.*U1**2-64.*T3
  52      1 *S13-64.*T3**2-64.*U3*S13-64.*U3**2-64.*S13**2)
  53       WWSS=2.*WWSS
  54       RETURN
  55       END