--- /dev/null
+*
+* $Id$
+*
+* $Log$
+* Revision 1.1.1.3 1997/07/13 13:25:32 cernlib
+* Import version 7.09
+*
+* Revision 1.3 1997/07/02 15:03:11 pdflib
+* potential bug removed in GRSGALO
+*
+* Revision 1.2 1996/10/28 16:10:10 pdflib
+* PDFLIB new version 7.04
+*
+* Revision 1.1.1.1 1996/04/12 15:30:17 plothow
+* Version 7.01
+*
+*
+#include "pdf/pilot.h"
+ PROGRAM TESTGAM
+C
+#include "pdf/impdp.inc"
+ PARAMETER (LFLPRT = 2)
+#include "pdf/w5051p2.inc"
+#include "pdf/w5051p7.inc"
+#include "pdf/w50510.inc"
+#include "pdf/w50511.inc"
+#include "pdf/w50512.inc"
+#include "pdf/w50513.inc"
+#include "pdf/w50516.inc"
+#include "pdf/w50517.inc"
+#include "pdf/w505110.inc"
+#include "pdf/w505120.inc"
+#include "pdf/w505122.inc"
+C
+#include "pdf/expdp.inc"
+ + DX,DQ,DUV,DDV,DUB,DDB,DSB,DCB,DBB,DTB,DGL,
+ + DQ2,DP2
+#include "pdf/expdp.inc"
+ + XI(32),WI(32),XX(33)
+ COMMON/W5051I9/XI,WI,XX,NTERMS
+#include "pdf/expdp.inc"
+ + XV(3),ZQ(5)
+ CHARACTER*20 PARM(NCHDIM)
+#include "pdf/expdp.inc"
+ + VAL(NCHDIM)
+C
+ DATA XV/0.05D0,0.50D0,0.95D0/
+ DATA ZQ/10.D0,100.D0,1000.D0,1.D+4,5.5D+5/
+ DATA P2/5./
+ DATA IP2/0/
+ DATA FLAV/4.D0/
+ DATA ALQED/137.D0/
+ DATA ICALL/0/
+C
+ N6 = L6
+ IFLPRT = LFLPRT
+C
+C*****adjustment of the VDM contribution*******************************
+ KA=1.
+C*****mass of the charm quark******************************************
+ CM=1.41
+C*****CHARME=0. -> no charm contribution ******************************
+ CHARME=1.
+C
+ PI=4.D0*ATAN(1.D0)
+ PI2=PI**2
+ CF=4.D0/3.D0
+ NF=INT(FLAV+0.1D0)
+ IF(NF.EQ.0) NF=3
+ FLAVOR=FLAV
+ B0=11.D0-2.D0*NF/3.D0
+ B1=102.D0-38.D0*NF/3.D0
+ CCOEG=2.D0/9.D0
+C IF(NF.EQ.4) CCOEG=5.D0/18.D0
+C COEG=2.D0*FLAVOR*CCOEG
+ COEG=2.D0*FLAVOR*CCOEG
+ CALL WATE32
+C
+C First call to PDFSET to initialize COMMON/W505120/
+ PARM(1) = 'Init0'
+ VAL(1) = 0.D0
+ CALL PDFSET(PARM,VAL)
+C.
+C Test new PDFLIB versions (4.0 or bigger) for Photons only
+ NPTYPE = 3
+ DO KGRO = 1,NGRMAX
+ IF(NPGSMX(NPTYPE,KGRO) .EQ. 0) GOTO 500
+ DO ISET=1,NPGSMX(NPTYPE,KGRO)
+ WRITE (N6,*) ' ==========================================
+ +================================================================='
+ FIRST=.TRUE.
+ PARM(1) = 'Nptype'
+ VAL(1) = NPTYPE
+ PARM(2) = 'Ngroup'
+ VAL(2) = KGRO
+ PARM(3) = 'Nset'
+ VAL(3) = ISET
+ CALL PDFSET(PARM,VAL)
+C
+ ICALL = 0
+ Q02 = Q2MIN
+ OWLAM = QCDL4
+ OWLAM2=OWLAM**2
+ IORD = LO - 1
+*
+ DO 100 J=3,3
+ Q2=Q02
+ IF(J.GE.2) Q2=ZQ(J-1)
+ XTH=1.D0/(1.D0+4.D0*CM**2/Q2)
+ ALQ2= LOG(Q2/OWLAM2)
+ ALFPI= 2.D0 /(B0*ALQ2+B1* LOG(ALQ2)/B0)
+ DO 70 K=1,3
+ X=XV(K)
+ DX = X
+ Q = SQRT(Q2)
+ DQ = Q
+ DQ2 = Q2
+ DP2 = P2
+ IP = IP2
+ CUT=1.
+ IF(CHARME.LT.0.5) CUT=0.
+ CUTG=1.
+ IF(X.GT.XTH) CUT=0.
+ CALL STRUCTP(DX,DQ2,DP2,IP,
+ + DUV,DDV,DUB,DDB,DSB,DCB,DBB,DTB,DGL)
+ UB =DUB
+ DB =DDB
+ SB =DSB
+ CB =DCB
+ GL =DGL
+ F2=(4.D0* DUB + DDB + DSB)/9.D0
+ F2C=4.D0/9.D0*(FLAVOR-3.D0)*DCB*CUT
+ F2=F2+F2C
+ IF(ICALL.EQ.0) THEN
+ ICALL = 1
+ WRITE (N6,1000) Q02,P2,CHARME,CUT,IORD,OWLAM,FLAV
+ 1000 FORMAT(1X,' Q02= ',F7.3,' P2= ',F7.3,
+ + ' CHARM= ',F3.1,' CUT= ',F3.1,
+ + ' IORD= ',I2,' LAMBDA=',F7.4,' NF = ',F5.2)
+ ENDIF
+ IF (K.EQ.1) THEN
+ WRITE (N6,1001) Q2
+ 1001 FORMAT(/,' Q2= ',E10.3,' GEV**2')
+ WRITE(N6,1002)
+ 1002 FORMAT(/,4X,' X',6X,'X*UB ',6X,'X*DB ',6X,'X*SB ',6X,'X*CB '
+ + ,6X,'X*GL',8X,' F2 ',6X,' F2/ALPHA'
+ + ,5X,' F2C ',5X,' F2C/ALPHA')
+ ENDIF
+ IF(IORD)13,13,14
+14 CONTINUE
+ AL=0.5D0*ALFPI
+ AL1= LOG(1.D0-X)
+ XQ=F2+F2*AL*CF*(-9.D0-2.D0*PI2/3.D0+AL1*(-3.D0+2.D0*AL1))
+C WRITE(N6,1111) X,Q,F2,AL1,XQ
+C1111 FORMAT(1X,' X,F2 = ',5E13.5)
+ XM=1.-X
+ XP=1.+X
+ DIS2=(XM**2-4.*X*XM*CM**2/Q2)*CUT
+ DIS=SQRT(DIS2)
+ YP=(XP+DIS)/2.
+ YM=(XP-DIS)/2.
+ CUTY=1.
+ DO 81 I=1,NTERMS
+ Y=0.5D0*(1.D0-X)*XI(I)+0.5D0*(1.D0+X)
+ XY=X/Y
+ AL1= LOG(1.D0-Y)
+ DX = XY
+ CALL STRUCTP(DX,DQ2,DP2,IP,
+ + DUV,DDV,DUB,DDB,DSB,DCB,DBB,DTB,DGL)
+ XQQ=(4.D0* DUB + DDB + DSB)/9.D0
+ XQQ=XQQ+4.D0/9.D0*(FLAVOR-3.D0)*DCB*CUT*CUTY
+ F2A=F2+F2C*(CUTY-1.)
+ 6 C22=CF*(6.D0+4.D0*Y-2.D0*(1.D0+Y*Y)/
+ + (1.D0-Y)* LOG(Y)-2.D0*(1.D0+Y)*AL1)
+ C23=CF*(-3.D0+4.D0*AL1)/(1.D0-Y)
+ COEGM=COEG+(8./9.)*(FLAVOR-3.)*CUTG*CUT
+ CG2=(-1.D0+8.D0*Y*(1.D0-Y)+(1.D0-2.D0*Y+2.D0*Y*Y)*
+ + LOG(1.D0/Y-1.D0))*COEGM
+ XQ=XQ +0.5D0*(1.D0-X)*WI(I)*AL*(C22*XQQ+C23*(XQQ- F2A))
+ XQ=XQ +0.5D0*(1.D0-X)*WI(I)*AL*CG2*(DGL+KA*GL)
+C WRITE(N6,1112) Y,AL1,C22,C23,CG2,XQQ,XQ
+C1112 FORMAT(1X,' Y,C22 = ',7E13.5)
+ CUTG=1.
+ 81 CUTY=1.
+ COE3=3.D0*3.D0*(2.D0/27.D0)*(1.D0/(2.D0*PI*ALQED))*2.D0
+ COE4=3.D0*(34.D0/81.D0)*(1.D0/(2.D0*PI*ALQED))*2.D0
+ IF(NF.EQ.3) COE4=COE3
+ F2=XQ+COE4*(8.D0*X*(1.D0-X)-1.D0+(1.D0-2.D0*X+2.D0*X*X)*
+ + LOG(1.D0/X-1.D0))*X
+ F2M=XQ+COE3*(8.D0*X*(1.D0-X)-1.D0+(1.D0-2.D0*X+2.D0*X*X)*
+ + LOG(1.D0/X-1.D0))*X
+ CMS=CM**2
+ SC=Q2*(1.D0-X)/X
+ BE=4.*CMS/SC
+ IF(BE.GE.1.) WCM=0.
+ IF(BE.GE.1.) GO TO 91
+ SQ=SQRT(1.-BE)
+ A1=((1.D0+SQ)/2.D0)**2
+ A2=(1.D0-X)/X
+ WCM=(8.D0*(1.D0-X)*X-1.D0)*SQ+(X**2+(1.D0-X)**2)*LOG(A1*A2)
+ WCM=3.D0*(4.D0/9.D0)/(PI*ALQED)*X*WCM
+91 CONTINUE
+ F2M=F2M+(4.D0/9.D0)*(FLAVOR-3.D0)*WCM*CUT
+ F2C=F2M
+ 13 F2N=F2*ALQED
+ F2CN=F2C*ALQED
+ WRITE(N6,1003)X,UB,DB,SB,CB,GL,F2,F2N,F2C,F2CN
+ 1003 FORMAT(1X,' ',F6.3,9E12.4)
+ 70 CONTINUE
+ 100 CONTINUE
+ ENDDO
+ WRITE(N6,*) ' '
+ 500 CONTINUE
+ ENDDO
+ STOP
+ END
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff