Topness
Topness (symbol T) or truth is a flavour quantum number that represents the difference between the number of top quarks (t) and number of top antiquarks (t) present in a particle:
| Flavour in particle physics |
|---|
| Flavour quantum numbers |
|
| Related quantum numbers |
|
| Combinations |
|
| Flavour mixing |
By convention, top quarks have a topness of +1 and top antiquarks have a topness of −1. The term "topness" is rarely used; most physicists simply refer to "the number of top quarks" and "the number of top antiquarks".
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.