Understanding the Difference Between Eta Meson & Eta Prime Meson

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Discussion Overview

The discussion revolves around the differences between the eta meson and the eta prime meson, focusing on their composition and characteristics. Participants express confusion regarding their quark content and the potential presence of gluonic components.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant expresses confusion about the eta meson and eta prime meson, asking for clarification on their composition.
  • Another participant suggests that the eta meson does not contain strange quark components, while the eta prime meson may have uncertain gluonic content.
  • A later reply challenges the previous claim about the eta meson's composition, indicating that there are sources that provide fits to data regarding the gluon content of both mesons.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the composition of the eta and eta prime mesons, with multiple competing views and uncertainties expressed throughout the discussion.

Contextual Notes

There are unresolved questions regarding the definitions of the mesons' components and the implications of gluonic content, as well as references to external sources that may provide additional insights.

owenhuang
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I am confused by eta meson and eta prime meson . I can not the difference between them .anybody can help me ? who can tell me what are they made up ?
some textbook say that the neutral eta meson is considered to be a quark combination
(uubar+ddbar-2*ssbar)/6^(1/2),but I am still not clear.
 
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Hi,

it will not help to open multiple threads on the same question. Thanks :smile:
 
ok ,get it !
 
It will not be easy for me to reply right away. From the top of my head, the eta did not have s\bar{s} components. As for the eta', you might be happy to hear that even professional specialists are not sure that there is no glue content in it :smile:
 
humanino said:
From the top of my head, the eta did not have s\bar{s} components.
The top of my head is not vey high this morning :smile:
This is wrong. You might want to take a look (for instance) at On the gluon content of the eta and eta' mesons[/color] where fits to available data are given.
 
thanks !
 

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