Difference between revisions of "Selection step"

From Particle Wiki
Jump to: navigation, search
 
Line 1: Line 1:
 +
[[Category:Physics analysis]]
 
A '''selection step''' or (somewhat [[Particle Wiki:Jargon|colloquially]]) '''cut''' is a requirement applied to a sample of [[Event|events]] or [[Object|objects]]. Only the events or objects satisfying the requirement ("passing the cut") are kept. An example of a selection step would be: ''keep events that have at least one [[jet]] with a [[transverse momentum]] of at least 50 [[GeV]]''.
 
A '''selection step''' or (somewhat [[Particle Wiki:Jargon|colloquially]]) '''cut''' is a requirement applied to a sample of [[Event|events]] or [[Object|objects]]. Only the events or objects satisfying the requirement ("passing the cut") are kept. An example of a selection step would be: ''keep events that have at least one [[jet]] with a [[transverse momentum]] of at least 50 [[GeV]]''.
  

Latest revision as of 16:35, 29 November 2016

A selection step or (somewhat colloquially) cut is a requirement applied to a sample of events or objects. Only the events or objects satisfying the requirement ("passing the cut") are kept. An example of a selection step would be: keep events that have at least one jet with a transverse momentum of at least 50 GeV.

Selection steps are applied to enrich the sample in those events or objects that one is interested in for producing results. Together, a sequence of steps forms a selection.

Selection steps can be arbitrarily simple or complicated, depending only on what is possible and meets the analysis needs.