1 | SUBROUTINE BOX63
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2 |
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3 | C-----------------------------------------------------------------------
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4 | C
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5 | C NUCLEON OR ANTINUCLEON INTERACTIONS
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6 | C TWO HEAVY ISOBARS
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7 | C INCLUDES ANNIHILATION
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8 | C THIS SUBROUTINE IS CALLED FROM NUCINT
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9 | C-----------------------------------------------------------------------
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10 |
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11 | IMPLICIT DOUBLE PRECISION (A-H,O-Z)
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12 | *KEEP,NCOUNT.
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13 | COMMON /NCOUNT/ NCOUN
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14 | INTEGER NCOUN(8)
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15 | *KEEP,PARPAR.
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16 | COMMON /PARPAR/ CURPAR,SECPAR,PRMPAR,OUTPAR,C,
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17 | * E00,E00PN,PTOT0,PTOT0N,THICKH,ITYPE,LEVL
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18 | DOUBLE PRECISION CURPAR(14),SECPAR(14),PRMPAR(14),OUTPAR(14),
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19 | * C(50),E00,E00PN,PTOT0,PTOT0N,THICKH
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20 | INTEGER ITYPE,LEVL
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21 | *KEEP,PARPAE.
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22 | DOUBLE PRECISION GAMMA,COSTHE,PHI,H,T,X,Y,CHI,BETA,GCM,ECM
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23 | EQUIVALENCE (CURPAR(2),GAMMA), (CURPAR(3),COSTHE),
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24 | * (CURPAR(4), PHI ), (CURPAR(5), H ),
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25 | * (CURPAR(6), T ), (CURPAR(7), X ),
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26 | * (CURPAR(8), Y ), (CURPAR(9), CHI ),
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27 | * (CURPAR(10),BETA), (CURPAR(11),GCM ),
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28 | * (CURPAR(12),ECM )
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29 | *KEEP,RANDPA.
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30 | COMMON /RANDPA/ FAC,U1,U2,RD,NSEQ,ISEED,KNOR
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31 | DOUBLE PRECISION FAC,U1,U2
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32 | REAL RD(3000)
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33 | INTEGER ISEED(103,10),NSEQ
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34 | LOGICAL KNOR
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35 | *KEEP,RUNPAR.
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36 | COMMON /RUNPAR/ FIXHEI,THICK0,HILOECM,HILOELB,
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37 | * STEPFC,NRRUN,NSHOW,PATAPE,MONIIN,
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38 | * MONIOU,MDEBUG,NUCNUC,
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39 | * CETAPE,
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40 | * SHOWNO,ISHW,NOPART,NRECS,NBLKS,MAXPRT,NDEBDL,
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41 | * N1STTR,MDBASE,
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42 | * DEBDEL,DEBUG,FDECAY,FEGS,FIRSTI,FIXINC,FIXTAR,
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43 | * FIX1I,FMUADD,FNKG,FPRINT,FDBASE
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44 | * ,GHEISH,GHESIG
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45 | COMMON /RUNPAC/ DSN,HOST,USER
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46 | DOUBLE PRECISION FIXHEI,THICK0,HILOECM,HILOELB
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47 | REAL STEPFC
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48 | INTEGER NRRUN,NSHOW,PATAPE,MONIIN,MONIOU,MDEBUG,NUCNUC,
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49 | * SHOWNO,ISHW,NOPART,NRECS,NBLKS,MAXPRT,NDEBDL,
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50 | * N1STTR,MDBASE
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51 | INTEGER CETAPE
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52 | CHARACTER*79 DSN
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53 | CHARACTER*20 HOST,USER
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54 |
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55 | LOGICAL DEBDEL,DEBUG,FDECAY,FEGS,FIRSTI,FIXINC,FIXTAR,
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56 | * FIX1I,FMUADD,FNKG,FPRINT,FDBASE
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57 | * ,GHEISH,GHESIG
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58 | *KEEP,SIGM.
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59 | COMMON /SIGM/ SIGMA,SIGANN,SIGAIR,FRACTN,FRCTNO
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60 | DOUBLE PRECISION SIGMA,SIGANN,SIGAIR,FRACTN,FRCTNO
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61 | *KEND.
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62 |
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63 | C-----------------------------------------------------------------------
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64 |
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65 | IF ( DEBUG ) WRITE(MDEBUG,444) (CURPAR(I),I=1,9)
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66 | 444 FORMAT(' BOX63 : CURPAR=',1P,9E10.3)
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67 |
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68 | C ANNIHILATION
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69 | IF ( ITYPE .EQ. 15 .OR. ITYPE .EQ. 25 ) THEN
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70 | NCOUN(7) = NCOUN(7) + 1
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71 | CALL RMMAR( RD,1,1 )
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72 | IF ( RD(1)*SIGMA .LE. SIGANN ) THEN
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73 | NCOUN(8) = NCOUN(8) + 1
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74 | CALL NIHILA
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75 | RETURN
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76 | ENDIF
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77 | ENDIF
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78 |
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79 | C INTERACTION (ISOBAR EXCITATION)
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80 | C SELECT HEAVY ISOBAR MASSES
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81 | CA = C(4)
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82 | CB = C(4)
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83 |
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84 | C HEAVY ISOBAR BACKWARD
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85 | CALL ISOBAR( ECM,1,CA,CB,3 )
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86 |
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87 | C HEAVY ISOBAR FORWARD
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88 | CALL ISOBAR( ECM,0,CB,CA,3 )
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89 |
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90 | RETURN
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91 | END
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