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Commit | Line | Data |
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0795afa3 | 1 | #include "isajet/pilot.h" |
2 | REAL FUNCTION SSGWT5(E) | |
3 | C----------------------------------------------------------------------- | |
4 | C SSGLBF: glss -> wiss + tp + bb | |
5 | C Baer's FTBW12; EQ. A.3D OF BTW, MODIFIED FOR MB=/0 | |
6 | C Drees' G_5 | |
7 | C----------------------------------------------------------------------- | |
8 | #if defined(CERNLIB_IMPNONE) | |
9 | IMPLICIT NONE | |
10 | #endif | |
11 | #include "isajet/sssm.inc" | |
12 | #include "isajet/sspar.inc" | |
13 | #include "isajet/sstmp.inc" | |
14 | REAL E | |
15 | DOUBLE PRECISION ET,MWI,MG,MT,MSB,MST,PT,EBMX | |
16 | DOUBLE PRECISION BOT,TOP,DFTBW,EBMN,XX | |
17 | DOUBLE PRECISION MB,Z,RDL,DEN,R1,R2,R3,SSDLAM | |
18 | C | |
19 | ET=E | |
20 | MWI=TMP(1) | |
21 | MG=TMP(2) | |
22 | MT=TMP(3) | |
23 | MSB=TMP(4) | |
24 | MST=TMP(6) | |
25 | MB=AMBT | |
26 | C | |
27 | C Rewrite PT=DSQRT(ET**2-MT**2) | |
28 | PT=DSQRT((ET-MT)*(ET+MT)) | |
29 | Z=(MG**2+MT**2-2*MG*ET+MB**2-MWI**2)/2. | |
30 | R1=1.D0+MT**2/MG**2-2.D0*ET/MG | |
31 | R2=MB**2/MG**2 | |
32 | R3=MWI**2/MG**2 | |
33 | RDL=DSQRT(DMAX1(0.D0,SSDLAM(R1,R2,R3))) | |
34 | DEN=MG**2+MT**2-2*ET*MG | |
35 | EBMX=(2*Z*(1.D0-ET/MG)+PT*MG*RDL)*MG/2.D0/DEN | |
36 | EBMN=(2*Z*(1.D0-ET/MG)-PT*MG*RDL)*MG/2.D0/DEN | |
37 | XX=(MSB**2+2*MG*EBMX-MG**2)/(MSB**2+2*MG*EBMN-MG**2) | |
38 | TOP=(MG**2+MT**2-2*MG*ET-MWI**2)*DLOG(XX) | |
39 | BOT=MG**2+MT**2-2*MG*ET-MST**2 | |
40 | DFTBW=-0.5*MT*TOP/BOT | |
41 | SSGWT5=DFTBW | |
42 | RETURN | |
43 | END |