3 <title>Glossary</title>
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35 <dd>Beam Remnants; not much used since it may be confused with
39 <dd>Beyond-the-Standard-Model physics, as a generic term for anything
40 not contained within the SM</dd>
43 <dd>Final-State Radiation, implemented in terms of timelike showers</dd>
46 <dd>Les Houches Accord for user processes, describing which process-level
47 information should be stored to allow further showering and hadronization
48 of "skeleton" hard processes</dd>
51 <dd>Les Houches Accord Parton Distribution Functions, originally a standard
52 format for defining PDF's and later a library with such PDF's</dd>
55 <dd>Les Houches Event File(s), a file format for storing LHA process and
56 event information</dd>
59 <dd>Initial-State Radiation, implemented in terms of spacelike showers</dd>
62 <dd>Multiple Interactions, i.e. several (more or less) independent
63 parton-parton subcollisions as part of a hadron-hadron event (sometimes
64 also called MPI, with P for parton or parton-parton)</dd>
67 <dd>Minimal Supersymmetric extension of the Standard Model</dd>
70 <dd>Parton Distribution Function (alternatively Parton Density
74 <dd>a scheme for assigning unique integers, particle identity codes,
75 to known and hypothetical particles; code rules and tables are published
76 in the RPP (see below).</dd>
79 <dd>several hadron-hadron collisions in a bunch crossing; not to
80 be confused with MI</dd>
83 <dd>Review of Particle Physics, the biannual review by the ParticleData Group
84 (PDG) from which many Standard-Model parameter values and much particle data
85 has been taken (but, given the poor data on many hadron resonances, a lot of
86 extra (guess)work is needed)</dd>
89 <dd>collectively used to denote all the boolean <code>flag</code>,
90 integer <code>mode</code>, double-precision <code>parm</code>
91 and string <code>word</code> variables that can be set by the user
92 to steer the behaviour of a run; normally particle data are considered
93 separately but clearly are closely related</dd>
96 <dd>SUSY Les Houchs Accord for interchange of mass and coupling information
97 in SUSY scenarios, via a well-defined file format</dd>
100 <dd>the Standard Model of particle physics</dd>
103 <dd>SUperSYmmetry</dd>
106 <dd>Normal PYTHIA input, internal operations and output is based on a set of
107 standard units, such as:
108 <br/>GeV for all energies, momenta and masses, always with <i>c = 1</i>;
109 <br/>mm for all distances and mm/<i>c</i> for all times,
110 so that again they match for <i>c = 1</i>;
111 <br/>mb for all cross sections (but input or output via the Les Houches
112 Accord takes into account that the unit there is pb)
120 <!-- Copyright (C) 2010 Torbjorn Sjostrand -->