1 *CMZ : 17/07/98 15.49.05 by Federico Carminati
6 c Program Initialization
7 c eta/pi0, rho/pi0, omega/pi0, phi/pi0 from asymptotic value
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-
20 COMMON /SHRUNP/ VMAJ,IMIN,NRUN,NEVTOT
22 COMMON /SHPHYP/ JWEI,NDNDY,YLIM,PTLIM,JWEAK,JPI0,JETA,JPIC,JPRO,
23 + JKAC,JKA0,JRHO,JOME,JPHI,JPSI,JDRY
25 COMMON /SHRATS/ RETAPI,RPROPI,RKACPI,RRHOPI,ROMEPI,RPHIPI
27 COMMON /SHGENE/ IEVT,NPI0,NETA,NPIC,NPRO,NKAC,NKA0,NRHO,NOME,
30 COMMON /SHPSDY/ RNPSI,RNDRY
32 COMMON /LUDAT1/ MSTU(200),PARU(200),MSTJ(200),PARJ(200)
38 MSTU(11) = 3 ! output file
39 MSTU(4) = 200000 ! /LUJETS/ size
41 c SHAKER initialization
43 VMAJ = 0.0 ! Major version number
44 IMIN = 5 ! Minor version number
46 c particle ratios initialization
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
55 RNPSI = 0.0018 ! J/psi rate * BR
56 RNDRY = 0.0005 ! Drell-Yan rate * BR for M > 1 GeV
61 IF (JWEAK.EQ.0) CALL SHWDIS
63 CALL SHSDEC(1) ! Select decays?