View source for Event generation

'''Event generation''' refers to the computer-based simulation of [[Event|events]], usually using the [[Monte Carlo method]] and an [[event generator]].

== Choice of event weight normalisation ==

There are basically four different choices to normalise event weights. Choosing a notation where <math>w_i</math> denotes the weight of the <math>i</math>th event, <math>N</math> is the number of generated events, <math>\sigma</math> is the generated [[cross section]] value and <math>\langle \cdots \rangle</math> denotes the average, the different conventions are<ref> Wolfgang Kilian, Thorsten Ohl, Jürgen Reuter: [http://whizard.hepforge.org WHIZARD] online user manual, [https://whizard.hepforge.org/manual/manual012.html#sec223 section 11.3]</ref>:

# <math>\langle w_i \rangle = 1</math> meaning that <math>\langle \sum_i w_i \rangle = N</math>
# <math>\langle w_i \rangle = \sigma</math> meaning that <math>\langle \sum_i w_i \rangle = N\sigma</math>
# <math>\langle w_i \rangle = 1/N</math> meaning that <math>\langle \sum_i w_i \rangle = 1</math>
# <math>\langle w_i \rangle = \sigma/N</math> meaning that <math>\langle \sum_i w_i \rangle = \sigma</math>

The sums are over all generated events.

== References ==
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