| 1 | SUBROUTINE BOX65
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| 2 |
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| 3 | C-----------------------------------------------------------------------
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| 4 | C
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| 5 | C PION INTERACTIONS
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| 6 | C ELASTIC SCATTERING, NO ENERGY LOSS
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| 7 | C THIS SUBROUTINE IS CALLED FROM NUCINT
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| 8 | C-----------------------------------------------------------------------
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| 9 |
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| 10 | IMPLICIT DOUBLE PRECISION (A-H,O-Z)
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| 11 | *KEEP,CONST.
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| 12 | COMMON /CONST/ PI,PI2,OB3,TB3,ENEPER
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| 13 | DOUBLE PRECISION PI,PI2,OB3,TB3,ENEPER
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| 14 | *KEEP,PAM.
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| 15 | COMMON /PAM/ PAMA,SIGNUM
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| 16 | DOUBLE PRECISION PAMA(6000),SIGNUM(6000)
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| 17 | *KEEP,PARPAR.
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| 18 | COMMON /PARPAR/ CURPAR,SECPAR,PRMPAR,OUTPAR,C,
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| 19 | * E00,E00PN,PTOT0,PTOT0N,THICKH,ITYPE,LEVL
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| 20 | DOUBLE PRECISION CURPAR(14),SECPAR(14),PRMPAR(14),OUTPAR(14),
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| 21 | * C(50),E00,E00PN,PTOT0,PTOT0N,THICKH
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| 22 | INTEGER ITYPE,LEVL
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| 23 | *KEEP,PARPAE.
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| 24 | DOUBLE PRECISION GAMMA,COSTHE,PHI,H,T,X,Y,CHI,BETA,GCM,ECM
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| 25 | EQUIVALENCE (CURPAR(2),GAMMA), (CURPAR(3),COSTHE),
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| 26 | * (CURPAR(4), PHI ), (CURPAR(5), H ),
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| 27 | * (CURPAR(6), T ), (CURPAR(7), X ),
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| 28 | * (CURPAR(8), Y ), (CURPAR(9), CHI ),
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| 29 | * (CURPAR(10),BETA), (CURPAR(11),GCM ),
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| 30 | * (CURPAR(12),ECM )
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| 31 | *KEEP,RANDPA.
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| 32 | COMMON /RANDPA/ FAC,U1,U2,RD,NSEQ,ISEED,KNOR
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| 33 | DOUBLE PRECISION FAC,U1,U2
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| 34 | REAL RD(3000)
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| 35 | INTEGER ISEED(103,10),NSEQ
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| 36 | LOGICAL KNOR
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| 37 | *KEEP,RUNPAR.
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| 38 | COMMON /RUNPAR/ FIXHEI,THICK0,HILOECM,HILOELB,
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| 39 | * STEPFC,NRRUN,NSHOW,PATAPE,MONIIN,
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| 40 | * MONIOU,MDEBUG,NUCNUC,
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| 41 | * CETAPE,
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| 42 | * SHOWNO,ISHW,NOPART,NRECS,NBLKS,MAXPRT,NDEBDL,
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| 43 | * N1STTR,MDBASE,
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| 44 | * DEBDEL,DEBUG,FDECAY,FEGS,FIRSTI,FIXINC,FIXTAR,
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| 45 | * FIX1I,FMUADD,FNKG,FPRINT,FDBASE
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| 46 | * ,GHEISH,GHESIG
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| 47 | COMMON /RUNPAC/ DSN,HOST,USER
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| 48 | DOUBLE PRECISION FIXHEI,THICK0,HILOECM,HILOELB
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| 49 | REAL STEPFC
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| 50 | INTEGER NRRUN,NSHOW,PATAPE,MONIIN,MONIOU,MDEBUG,NUCNUC,
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| 51 | * SHOWNO,ISHW,NOPART,NRECS,NBLKS,MAXPRT,NDEBDL,
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| 52 | * N1STTR,MDBASE
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| 53 | INTEGER CETAPE
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| 54 | CHARACTER*79 DSN
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| 55 | CHARACTER*20 HOST,USER
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| 56 |
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| 57 | LOGICAL DEBDEL,DEBUG,FDECAY,FEGS,FIRSTI,FIXINC,FIXTAR,
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| 58 | * FIX1I,FMUADD,FNKG,FPRINT,FDBASE
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| 59 | * ,GHEISH,GHESIG
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| 60 | *KEND.
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| 61 |
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| 62 | C-----------------------------------------------------------------------
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| 63 |
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| 64 | IF ( DEBUG ) WRITE(MDEBUG,444) (CURPAR(I),I=1,9)
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| 65 | 444 FORMAT(' BOX65 : CURPAR=',1P,9E10.3)
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| 66 |
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| 67 | C SCATTERING OF SINGLE PARTICLE
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| 68 | DO 1 I = 1,8
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| 69 | SECPAR(I) = CURPAR(I)
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| 70 | 1 CONTINUE
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| 71 | PT = PTRANS(DUMMY)
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| 72 | PLLAB2 = PAMA(8)**2 * (GAMMA**2 - 1.D0)
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| 73 | CTHETA = SQRT( PLLAB2 / (PT**2+PLLAB2) )
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| 74 | IF ( CTHETA .LT. C(27) ) RETURN
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| 75 | CALL RMMAR( RD,1,1 )
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| 76 | CALL ADDANG( COSTHE,PHI, CTHETA,RD(1)*PI2, SECPAR(3),SECPAR(4) )
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| 77 | C KILL BACKWARD GOING PARTICLES
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| 78 | IF ( SECPAR(3) .LT. C(29) ) RETURN
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| 79 |
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| 80 | CALL TSTACK
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| 81 |
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| 82 | RETURN
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| 83 | END
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