00001 * STEERING FILE FOR CASCADE
00002 *
00003 * number of events to be generated
00004 *
00005 *NEVENT 1000
00006 *
00007 *-----------------------------------------------------------------------
00008 * GCAS 0 / ! CASCADE PARAMETERS
00009 *-----------------------------------------------------------------------
00010 *
00011 *VAR-NAM 1.INDX 2.INDX NEW-VALUE ! COMMENT IF NEEDED
00012 * ------- ------ ------ -------- ---------------------------------
00013 *
00014 * +++++++++++++++++ Kinematic parameters +++++++++++++++
00015 *
00016 *
00017 'PBE1' 1 0 -7000. ! Beam energy
00018 'KBE1' 1 0 2212 ! -11: positron, 22: photon 2212: proton
00019 'IRE1' 1 0 1 ! 0: beam 1 has no structure
00020 * ! 1: beam 1 has structure
00021 *
00022 'PBE2' 1 0 7000. ! Beam energy
00023 'KBE2' 1 0 2212 ! 11: electron, 22: photon 2212: proton
00024 'IRE2' 1 0 1 ! 0: beam 3 has no structure
00025 * ! 1: beam 2 has structure
00026 *
00027 *
00028 'QMIN' 1 0 0. ! (D=5.0) minimum Q2 to be generated
00029 *'QMAX' 1 0 100 ! (D=10.D8) maximum Q2 to be generated
00030 *
00031 *'YMIN' 1 0 0.0001 ! (D=0.) YMIN of photon
00032 *'YMAX' 1 0 0.99 ! (D=1.) YMAX of photon
00033 *
00034 *'THEI' 1 0 0. ! (D=0.) minimum scattering angle for e
00035 *'THEM' 1 0 180 ! (D=180.) maximum scattering angle for e
00036 *
00037 'NFLA' 1 0 5 ! (D=5) nr of flavours used in str.fct
00038 *
00039 'MULT' 1 0 0 ! (D=0) multiple scattering
00040 *
00041 * +++++++++++++++ Hard subprocess selection ++++++++++++++++++
00042 *
00043 'IPRO' 1 0 11 ! (D=1)
00044 * ! 2: J/psi g
00045 * ! 10: Light quarks
00046 * ! 11: Heavy quarks
00047 * ! 102: g g -> Higgs
00048 *
00049 'IHFL' 1 0 6 ! (D=4) produced flavour for IPRO=11
00050 * ! 4: charm
00051 * ! 5: bottom
00052 *
00053 *'PTCU' 1 0 1000. ! (D=0) p_t **2 cut for process
00054 *
00055 *
00056 * ++++++++++++ Parton shower and fragmentation ++++++++++++
00057 *
00058 'NFRA' 1 0 1 ! (D=1) Fragmentation on=1 off=0
00059 *
00060 'IFPS' 1 0 3 ! (D=3) Parton shower
00061 * ! 0: off
00062 * ! 1: initial state PS
00063 * ! 2: final state PS
00064 * ! 3: initial and final state PS
00065 *
00066 'ITIM' 1 0 0 ! 0: timlike partons may not shower
00067 * ! 1: timlike partons may shower
00068 *
00069 'ICCF' 1 0 1 ! (D=1) Evolution equation
00070 * ! 1: CCFM
00071 * ! 0: DGLAP
00072 *
00073 * +++++++++++++ Structure functions and scales +++++++++++++
00074 *
00075 'IRAM' 1 0 0 ! (D=0) Running of alpha_em(Q2)
00076 * ! 0: fixed
00077 * ! 1: running
00078 *
00079 'IRAS' 1 0 1 ! (D=1) Running of alpha_s(MU2)
00080 * ! 0: fixed alpha_s=0.3
00081 * ! 1: running
00082 *
00083 'IQ2S' 1 0 3 ! (D=1) Scale MU2 of alpha_s
00084 * ! 1: MU2= 4*m**2 (only for heavy quarks)
00085 * ! 2: MU2 = shat(only for heavy quarks)
00086 * ! 3: MU2= 4*m**2 + pt**2
00087 * ! 4: MU2 = Q2
00088 * ! 5: MU2 = Q2 + pt**2
00089 * ! 6: MU2 = k_t**2
00090 'SCAL' 1 0 1.0 ! scale factor for alphas scale
00091 *
00092 *'IGLU' 1 0 1101 ! (D=1010)Unintegrated gluon density
00093 * ! 1: CCFM old set JS2001
00094 * ! 1001: CCFM J2003 set 1
00095 * ! 1002: CCFM J2003 set 2
00096 * ! 1003: CCFM J2003 set 3
00097 * ! 1010: CCFM set A0
00098 * ! 1011: CCFM set A0+
00099 * ! 1012: CCFM set A0-
00100 * ! 1013: CCFM set A1
00101 * ! 1020: CCFM set B0
00102 * ! 1021: CCFM set B0+
00103 * ! 1022: CCFM set B0-
00104 * ! 1023: CCFM set B1
00105 * ! 1101: CCFM set C
00106 * ! 2: derivative of collinear gluon (GRV)
00107 * ! 3: Bluemlein
00108 * ! 4: KMS
00109 * ! 5: GBW (saturation model)
00110 * ! 6: KMR
00111 * ! 7: Ryskin,Shabelski
00112 *
00113 * ++++++++++++ BASES/SPRING Integration procedure ++++++++++++
00114 *
00115 'NCAL' 1 0 50000 ! (D=20000) Nr of calls per iteration for bases
00116 *
00117 'ACC1' 1 0 1.0 ! (D=1) relative prec.(%) for grid optimisation
00118 *
00119 'ACC2' 1 0 0.5 ! (0.5) relative prec.(%) for integration
00120 *
00121 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
00122 *
00123 *'INTE' 1 0 0 ! Interaction type (D=0)
00124 * ! = 0 electromagnetic interaction
00125 *'KT1 ' 1 0 0.44 ! (D=0.0) intrinsic kt for beam 1
00126 *
00127 *'KT2 ' 1 0 0.44 ! (D=0.0) intrinsic kt for beam 2
00128 *
00129 *'KTRE' 1 0 0.35 ! (D=0.35) primordial kt when non-trivial
00130 * ! target remnant is split into two particles
00131 * Les Houches Accord Interface
00132 *'ILHA' 1 0 10 ! (D=10) Les Houches Accord
00133 * ! = 0 use internal CASCADE
00134 * ! = 1 write event file
00135 * ! = 10 call PYTHIA for final state PS and remnant frag
00136 *
00137 * path for updf files
00138 *'UPDF' '/afs/desy.de/group/alliance/mcg/public/MCGenerators/cascade/2.0.1/data'
00139 *-----------------------------------------------------------------------
00140 GPYT 0 / ! PYTHIA 6 PARAMETERS
00141 *-----------------------------------------------------------------------
00142 *
00143 *
00144 * VAR-NAM 1.INDX 2.INDX NEW-VALUE ! COMMENT IF NEEDED
00145 * ------- ------ ------ -------- ---------------------------------
00146 *
00147 'PMAS' 4 1 1.6 ! charm mass
00148 'PMAS' 5 1 4.75 ! bottom mass
00149 'PMAS' 25 1 125. ! higgs mass
00150 *
00151 'PARU' 112 0 0.2 ! lambda QCD
00152 *
00153 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
00154 *
00155 * alphas parameters
00156 'MSTU' 111 0 1 ! = 0 : alpha_s is fixed
00157 * ! at the value PARU(111)
00158 * ! =1 ;first-order running alpha_s
00159 * ! =2 ;second-order running alpha_s
00160 *
00161 * +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
00162 **
00163 * ! Type of Fragmentation:
00164 *'MSTJ' 1 0 2 ! (D=1), 1=string, 2=independent
00165 'MSTJ' 41 0 1 !
00166 * ! see also MSTJ(2) and MSTJ(3)
00167 * angular ordering in timelike cascade
00168 'MSTJ' 48 0 1 ! (D=0), 0=no max. angle,
00169 * ! 1=max angle def. in PARJ(85)
00170 'MSTU' 112 0 4 ! nr of flavours wrt lambda_QCD
00171 'MSTU' 113 0 3 ! min nr of flavours for alphas
00172 'MSTU' 114 0 5 ! max nr of flavours for alphas
00173 *
00174 ************************************************************************
00175 END$
