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Hypothetical form of quarkonium From Wikipedia, the free encyclopedia
The theta meson (
θ
)[1] is a hypothetical form of quarkonium (i.e. a flavourless meson) formed by a top quark (
t
) and top antiquark (
t
). As a P-odd and C-odd
t
t
state, it is analogous to the
ϕ
(
s
s
),
J/ψ
(
c
c
) and
ϒ
(
b
b
) mesons. Due to the top quark's short lifetime, the theta meson is expected to not be observed in nature.[2]
Composition | t t |
---|---|
Statistics | bosonic |
Interactions | strong, weak, gravitational, electromagnetic |
Status | hypothetical |
Antiparticle | self |
Electric charge | 0 e |
Isospin | 0 |
Hypercharge | 0 |
Parity | −1 |
C parity | −1 |
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