Gabriele Cosmo
54 lines
1.6 KiB
FortranFixed
54 lines
1.6 KiB
FortranFixed
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SUBROUTINE GUKINE
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*
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* Generates Kinematics for primary track
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*
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* Data card Kine : Itype Ekine x0 y0 z0 ux uy uz rbeam
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*
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* rbeam : size of the random beam extension in fraction of 0.5*calorYZ
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*
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#include "geant321/gcbank.inc"
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#include "geant321/gcflag.inc"
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#include "geant321/gckine.inc"
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#include "calor.inc"
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*
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DIMENSION VERTEX(3),PLAB(3)
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dimension rndm(2)
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*
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* *** set/reset default kinematic
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IF ((IKINE.LT.0).or.(abs(PKINE(2)).GT.0.5*worldX)) THEN
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IKINE = ABS(IKINE)
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PKINE(2) = -0.5*worldX
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PKINE(3) = 0.
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PKINE(4) = 0.
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PKINE(5) = 1.
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PKINE(6) = 0.
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PKINE(7) = 0.
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ENDIF
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*
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* random in YZ ?
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if ((pkine(8).lt.0.).or.(pkine(8).gt.1.)) pkine(8) = 0.
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rbeam = pkine(8)*0.5*calorYZ
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call GRNDM (rndm,2)
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*
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VERTEX(1) = PKINE(2)
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VERTEX(2) = PKINE(3) + (2*rndm(1)-1.)*rbeam
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VERTEX(3) = PKINE(4) + (2*rndm(2)-1.)*rbeam
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*
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CALL GSVERT(VERTEX,0,0,0,0,NVERT)
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*
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*
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JPA = LQ(JPART-IKINE)
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XMASS = Q(JPA+7)
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PMOM = SQRT(PKINE(1)*(PKINE(1)+2*XMASS))
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PLAB(1) = PMOM*PKINE(5)
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PLAB(2) = PMOM*PKINE(6)
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PLAB(3) = PMOM*PKINE(7)
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*
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CALL GSKINE(PLAB,IKINE,NVERT,0,0,NT)
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*
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* *** Kinematics debug
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IF (IEVENT.EQ.1.OR.IDEBUG.NE.0) CALL GPRINT('KINE',0)
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*
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END
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