PYTHIA8/pythia8170/htmldoc/ProgramClasses.html

   1 <html>
   2 <head>
   3 <title>Program Classes</title>
   4 <link rel="stylesheet" type="text/css" href="pythia.css"/>
   5 <link rel="shortcut icon" href="pythia32.gif"/>
   6 </head>
   7 <body>
   8
   9 <h2>Program Classes</h2>
  10
  11 The complete PYTHIA 8 package contains
  12 <a href="ProgramFiles.html" target="page">a multitude of classes</a>.
  13 There is no reason to describe all of them, with all of their
  14 methods, since most should not be touched by a normal user.
  15 Nevertheless some of the crucial ones are described in detail,
  16 as a help not only to advanced users but also to developers.
  17 We here provide a quick reference (still incomplete) which
  18 classes you can find described where on these pages. Normally
  19 you have to scroll down to find the details, since the top of
  20 the page contains information of more general interest.
  21
  22 <p/>
  23 <table cellspacing="5">
  24
  25 <tr>
  26 <td><b>Class</b></td>
  27 <td><b>Reference</b></td>
  28 <td><b>Comment</b></td>
  29 </tr>
  30
  31 <tr>
  32 <td><code>BeamShape</code></td>
  33 <td><a href="BeamShape.html" target="page">Beam Shape</a></td>
  34 <td>vertex amd beam momentum spread</td>
  35 </tr>
  36
  37 <tr>
  38 <td><code>CellJet</code></td>
  39 <td><a href="EventAnalysis.html" target="page">Event Analysis</a></td>
  40 <td>jet cone clustering analysis, intended for hadron collider
  41 topologies</td>
  42 </tr>
  43
  44 <tr>
  45 <td><code>ClusterJet</code></td>
  46 <td><a href="EventAnalysis.html" target="page">Event Analysis</a></td>
  47 <td>jet clustering analysis, intended for <i>e^+e^-</i>
  48 collider topologies</td>
  49 </tr>
  50
  51 <tr>
  52 <td><code>CoupSM</code></td>
  53 <td><a href="StandardModelParameters.html" target="page">Standard Model Parameters</a></td>
  54 <td>couplings and mixing matrices</td>
  55 </tr>
  56
  57 <tr>
  58 <td><code>CoupSUSY</code></td>
  59 <td><a href="SUSYLesHouchesAccord.html" target="page">SUSY Les Houches Accord</a></td>
  60 <td>compute and store SUSY couplings, using input from SusyLesHouches</td>
  61 </tr>
  62
  63 <tr>
  64 <td><code>DecayChannel</code></td>
  65 <td><a href="ParticleDataScheme.html" target="page">Particle Data Scheme</a></td>
  66 <td>the properties of a single decay channel of  particle species</td>
  67 </tr>
  68
  69 <tr>
  70 <td><code>Event</code></td>
  71 <td><a href="EventRecord.html" target="page">Event Record</a></td>
  72 <td>the complete event record</td>
  73 </tr>
  74
  75 <tr>
  76 <td><code>HepMC::I_Pythia8</code></td>
  77 <td><a href="HepMCInterface.html" target="page">HepMC Interface</a></td>
  78 <td>convert a PYTHIA event record to the HepMC format</td>
  79 </tr>
  80
  81 <tr>
  82 <td><code>Hist</code></td>
  83 <td><a href="Histograms.html" target="page">Histograms</a></td>
  84 <td>a primitive built-in histogramming package</td>
  85 </tr>
  86
  87 <tr>
  88 <td><code>Info</code></td>
  89 <td><a href="EventInformation.html" target="page">Event Information</a></td>
  90 <td>various one-of-a-kind information on the current event</td>
  91 </tr>
  92
  93 <tr>
  94 <td><code>LHAPDFInterface</code></td>
  95 <td><a href="PartonDistributions.html" target="page">Parton Distributions</a></td>
  96 <td>use PDF sets from the LHAPDF library</td>
  97 </tr>
  98
  99 <tr>
 100 <td><code>LHAup</code></td>
 101 <td><a href="LesHouchesAccord.html" target="page">Les Houches Accord</a></td>
 102 <td>base class for Les Houches external hard-event input</td>
 103 </tr>
 104
 105 <tr>
 106 <td><code>Particle</code></td>
 107 <td><a href="ParticleProperties.html" target="page">Particle Properties</a></td>
 108 <td>the properties of a particle in the event record</td>
 109 </tr>
 110
 111 <tr>
 112 <td><code>ParticleData</code></td>
 113 <td><a href="ParticleDataScheme.html" target="page">Particle Data Scheme</a></td>
 114 <td>the database of particle species properties</td>
 115 </tr>
 116
 117 <tr>
 118 <td><code>ParticleDataEntry</code></td>
 119 <td><a href="ParticleDataScheme.html" target="page">Particle Data Scheme</a></td>
 120 <td>the properties of a particle species</td>
 121 </tr>
 122
 123 <tr>
 124 <td><code>PDF</code></td>
 125 <td><a href="PartonDistributions.html" target="page">Parton Distributions</a></td>
 126 <td>base class for all PDFs</td>
 127 </tr>
 128
 129 <tr>
 130 <td><code>Pythia</code></td>
 131 <td><a href="ProgramFlow.html" target="page">Program Flow</a></td>
 132 <td>the top-level class, that drives the generation process</td>
 133 </tr>
 134
 135 <tr>
 136 <td><code>ResonanceWidths</code></td>
 137 <td><a href="SemiInternalResonances.html" target="page">Semi-Internal Resonances</a></td>
 138 <td>base class for all resonance-width treatment</td>
 139 </tr>
 140
 141 <tr>
 142 <td><code>Rndm</code></td>
 143 <td><a href="RandomNumbers.html" target="page">RandomNumbers</a></td>
 144 <td>a primitive built-in histogramming package</td>
 145 </tr>
 146
 147 <tr>
 148 <td><code>RotBstMatrix</code></td>
 149 <td><a href="FourVectors.html" target="page">Four-Vectors</a></td>
 150 <td>rotation and boosts of four-vectors</td>
 151 </tr>
 152
 153 <tr>
 154 <td><code>Settings</code></td>
 155 <td><a href="SettingsScheme.html" target="page">Settings Scheme</a></td>
 156 <td>the database that regulates the behaviour of the program</td>
 157 </tr>
 158
 159 <tr>
 160 <td><code>SigmaProcess</code></td>
 161 <td><a href="SemiInternalProcesses.html" target="page">Semi-Internal Processes</a></td>
 162 <td>base class for all hard-process cross sections</td>
 163 </tr>
 164
 165 <tr>
 166 <td><code>SlowJet</code></td>
 167 <td><a href="EventAnalysis.html" target="page">Event Analysis</a></td>
 168 <td>simple jet clustering using the <i>kT</i>, anti-<i>kT</i> or
 169 Cambridge/Aachen algorithms.</td>
 170 </tr>
 171
 172 <tr>
 173 <td><code>SpaceShower</code></td>
 174 <td><a href="ImplementNewShowers.html" target="page">Implement New Showers</a></td>
 175 <td>spacelike, i..e. initial-state showers</td>
 176 </tr>
 177
 178 <tr>
 179 <td><code>Sphericity</code></td>
 180 <td><a href="EventAnalysis.html" target="page">Event Analysis</a></td>
 181 <td>sphericity analysis of events</td>
 182 </tr>
 183
 184 <tr>
 185 <td><code>SusyLesHouches</code></td>
 186 <td><a href="SUSYLesHouchesAccord.html" target="page">SUSY Les Houches Accord</a></td>
 187 <td>reading in of SLHA information</td>
 188 </tr>
 189
 190 <tr>
 191 <td><code>Thrust</code></td>
 192 <td><a href="EventAnalysis.html" target="page">Event Analysis</a></td>
 193 <td>thrust analysis of events</td>
 194 </tr>
 195
 196 <tr>
 197 <td><code>TimeShower</code></td>
 198 <td><a href="ImplementNewShowers.html" target="page">Implement New Showers</a></td>
 199 <td>timelike, i..e. final-state showers</td>
 200 </tr>
 201
 202 <tr>
 203 <td><code>UserHooks</code></td>
 204 <td><a href="UserHooks.html" target="page">User Hooks</a></td>
 205 <td>get access to some steps of the generation process</td>
 206 </tr>
 207
 208 <tr>
 209 <td><code>Vec4</code></td>
 210 <td><a href="FourVectors.html" target="page">Four-Vectors</a></td>
 211 <td>four-vectors</td>
 212 </tr>
 213
 214 <tr>
 215 <td><code></code></td>
 216 <td><a href=".html" target="page"></a></td>
 217 <td></td>
 218 </tr>
 219
 220 <tr>
 221 <td><code></code></td>
 222 <td><a href=".html" target="page"></a></td>
 223 <td></td>
 224 </tr>
 225
 226 </table>
 227
 228 <p/>
 229 You can also access an extensive list of the public
 230 <a href="ProgramMethods.html" target="page">methods</a> in these classes,
 231 which compensates for the brevity of the current page.
 232
 233 <!-- Copyright (C) 2012 Torbjorn Sjostrand -->