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pile-up

pile-up

1 9.9
Many particle collisions that overlap in a detector and make signals unclear
  • noun
  • /ˈpaɪlˌʌp/
  • Specialized
translation icon : acumulación
  • The recent data showed an increase in pile-ups during the collision tests, resulting in overlapping signals that complicated the results.

Examples

  • Detecting a pile-up in the particle detector can significantly hinder the reconstruction of individual events during the experiment.

  • I wade through them, slide over the edge into a pile up to my armpits; no, this can't be, I cannot be rolling around in leaves. It feels too good, smells too good; I am too young and goofy to be anybody's mother.

    Fiction book (1997)
  • The critical division, the exact moment when the defect deeply embedded in the genes finally expressed itself: turning cells inside out, causing pile-ups, imbalances, and gaps that it would take advanced neonatal specialists only moments to identify and label.

    Fiction book (1998)
  • In high-energy physics experiments, a pile-up occurs when multiple particle collisions are detected simultaneously, making analysis challenging.

Synonyms

aggregation
vspile-up
11 6.1

A group of things joined together as one whole

is a specific physics case involving overlapping collision signals in one detector readout
cumulation
vspile-up
8.0

A pile of things gathered together

is a technical event of simultaneous particle collisions creating overlapping detector signals

How Large

pile-up
  • Specialized
1 9.9
backlog
36 3.8
queue
  • Specialized
14 6.0

Surface Forms

pile-up singular
pile-ups plural

Morphology

pile-up = pile (opaque) = up + pile

The specific meaning in particle physics is highly specialized and not directly derivable from the base words. [Postprocessing: moved 'up' from base_words to prefix]

Etymology

Pile-up comes from pile ('a heap') and up ('on top'), the same image used in everyday speech. In particle physics a pile-up is when many collisions happen at once and their signals 'pile up' or overlap, making it hard to see the main event.