1 <chapter name="Glossary">
8 <dd>Beam Remnants; not much used since it may be confused with
12 <dd>Beyond-the-Standard-Model physics, as a generic term for anything
13 not contained within the SM</dd>
16 <dd>Final-State Radiation, implemented in terms of timelike showers</dd>
19 <dd>Les Houches Accord for user processes, describing which process-level
20 information should be stored to allow further showering and hadronization
21 of "skeleton" hard processes</dd>
24 <dd>Les Houches Accord Parton Distribution Functions, originally a standard
25 format for defining PDF's and later a library with such PDF's</dd>
28 <dd>Les Houches Event File(s), a file format for storing LHA process and
29 event information</dd>
32 <dd>Initial-State Radiation, implemented in terms of spacelike showers</dd>
35 <dd>Multiple Interactions, i.e. several (more or less) independent
36 parton-parton subcollisions as part of a hadron-hadron event (sometimes
37 also called MPI, with P for parton or parton-parton)</dd>
40 <dd>Minimal Supersymmetric extension of the Standard Model</dd>
43 <dd>Parton Distribution Function (alternatively Parton Density
47 <dd>a scheme for assigning unique integers, particle identity codes,
48 to known and hypothetical particles; code rules and tables are published
49 in the RPP (see below).</dd>
52 <dd>several hadron-hadron collisions in a bunch crossing; not to
53 be confused with MI</dd>
56 <dd>Review of Particle Physics, the biannual review by the ParticleData Group
57 (PDG) from which many Standard-Model parameter values and much particle data
58 has been taken (but, given the poor data on many hadron resonances, a lot of
59 extra (guess)work is needed)</dd>
62 <dd>collectively used to denote all the boolean <code>flag</code>,
63 integer <code>mode</code>, double-precision <code>parm</code>
64 and string <code>word</code> variables that can be set by the user
65 to steer the behaviour of a run; normally particle data are considered
66 separately but clearly are closely related</dd>
69 <dd>SUSY Les Houchs Accord for interchange of mass and coupling information
70 in SUSY scenarios, via a well-defined file format</dd>
73 <dd>the Standard Model of particle physics</dd>
76 <dd>SUperSYmmetry</dd>
79 <dd>Normal PYTHIA input, internal operations and output is based on a set of
80 standard units, such as:
81 <br/>GeV for all energies, momenta and masses, always with <ei>c = 1</ei>;
82 <br/>mm for all distances and mm/<ei>c</ei> for all times,
83 so that again they match for <ei>c = 1</ei>;
84 <br/>mb for all cross sections (but input or output via the Les Houches
85 Accord takes into account that the unit there is pb)
92 <!-- Copyright (C) 2008 Torbjorn Sjostrand -->