Understanding the Difference Between Eta Meson & Eta Prime Meson

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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