Understanding the Difference Between Eta Meson & Eta Prime Meson

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SUMMARY

The discussion clarifies the differences between the eta meson and the eta prime meson, specifically their quark compositions. The neutral eta meson is defined as a quark combination of (uubar + ddbar - 2*ssbar)/6^(1/2), indicating it does not contain strange quark components. In contrast, the eta prime meson may have uncertain gluon content, a topic that even experts find ambiguous. The conversation emphasizes the importance of consulting specialized literature for deeper insights into these mesons.

PREREQUISITES
  • Understanding of quark models and meson classifications
  • Familiarity with particle physics terminology
  • Knowledge of gluon interactions in quantum chromodynamics
  • Access to relevant scientific literature on meson properties
NEXT STEPS
  • Research the quark composition of mesons in particle physics
  • Study the role of gluons in the eta prime meson
  • Examine the paper "On the gluon content of the eta and eta' mesons" for detailed analysis
  • Explore the implications of quark combinations in meson decay processes
USEFUL FOR

Particle physicists, students of quantum mechanics, and researchers interested in meson properties and quark interactions will benefit from this discussion.

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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