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1 *CMZ :          17/07/98  15.49.05  by  Federico Carminati
2 *-- Author :
3       SUBROUTINE SHINIT
4 c       =================
5
6 c       Program Initialization
7 c       eta/pi0, rho/pi0, omega/pi0, phi/pi0 from asymptotic value
8 c       & mT-scaling
9 c       [E.g.: V.Hedberg, LUNFD6/(NFFL-7073)/1987;
10 c       M.Bourquin and J.M.Gaillard, Nucl. Phys. B114 (1976),334]
11 c       p/pi and K/pi from Tevatron
12 c       [T.Alexopoulos et al.: Phys. Rev. Lett. 64 (1990), 991]
13 c       psi and Drell-Yan are rates, independent of dN/dy, for one unit
14 c       of rapidity, for central events.
15 c       Cross section data from J. Schukraft, priv.comm.
16 c       Drell-Yan rate is for M > 1 GeV
17 c       psi and Drell-Yan rates include BR --> e+ e-
18
19 *KEEP,SHRUNP.
20       COMMON /SHRUNP/ VMAJ,IMIN,NRUN,NEVTOT
21 *KEEP,SHPHYP.
22       COMMON /SHPHYP/ JWEI,NDNDY,YLIM,PTLIM,JWEAK,JPI0,JETA,JPIC,JPRO,
23      +                  JKAC,JKA0,JRHO,JOME,JPHI,JPSI,JDRY
24 *KEEP,SHRATS.
25       COMMON /SHRATS/ RETAPI,RPROPI,RKACPI,RRHOPI,ROMEPI,RPHIPI
26 *KEEP,SHGENE.
27       COMMON /SHGENE/ IEVT,NPI0,NETA,NPIC,NPRO,NKAC,NKA0,NRHO,NOME,
28      +                  NPHI,NPSI,NDRY
29 *KEEP,SHPSDY.
30       COMMON /SHPSDY/ RNPSI,RNDRY
31 *KEEP,LUDAT1.
32       COMMON /LUDAT1/ MSTU(200),PARU(200),MSTJ(200),PARJ(200)
33       SAVE /LUDAT1/
34 *KEND.
35
36 c       LUND initialization
37
38       MSTU(11) = 3                      ! output file
39       MSTU(4)  = 200000         ! /LUJETS/ size
40
41 c       SHAKER initialization
42
43       VMAJ = 0.0        ! Major version number
44       IMIN = 5  ! Minor version number
45
46 c       particle ratios initialization
47
48       RETAPI = 0.17     ! eta over pi0 ratio
49       RPROPI = 0.074    ! p over pi ratio
50       RKACPI = 0.112    ! K over pi ratio
51       RRHOPI = 0.15     ! rho over pi0 ratio
52       ROMEPI = 0.14     ! omega over pi0 ratio
53       RPHIPI = 0.016    ! phi over pi0 ratio
54
55       RNPSI  = 0.0018 ! J/psi rate * BR
56       RNDRY  = 0.0005 ! Drell-Yan rate * BR for M > 1 GeV
57
58
59
60       CALL SHRATE       
61       IF (JWEAK.EQ.0) CALL SHWDIS
62       CALL SHRNDV
63       CALL SHSDEC(1)    ! Select decays?
64
65       RETURN
66       END