In today's world, Omega meson has become a relevant and interesting topic for many people. Whether it's its impact on society, its relevance in history, or its influence on popular culture, Omega meson has captured the attention of many people around the world. In this article, we will explore the different facets of Omega meson, analyzing its importance, its evolution over time, and its role in different contexts. Through a comprehensive and multidisciplinary approach, we will attempt to shed light on this intriguing and significant topic, offering our readers a deeper and more comprehensive view of Omega meson.
Composition | |
---|---|
Statistics | Bosonic |
Family | Mesons |
Interactions | Strong, weak, electromagnetic, gravity |
Symbol | ω |
Antiparticle | Self |
Theorized | Yoichiro Nambu (1957) |
Discovered | Lawrence Berkeley National Laboratory (1961) |
Types | 1 |
Mass | 782.66±0.13 MeV/c2 |
Mean lifetime | (7.58±0.11)×10−23 s |
Decays into | π+ + π0 + π− or π0 + γ |
Electric charge | 0 e |
Spin | 1 |
Isospin | 0 |
Hypercharge | 0 |
Parity | −1 |
C parity | −1 |
The omega meson (
ω
) is a flavourless meson formed from a superposition of an up quark–antiquark and a down quark–antiquark pair. It is part of the vector meson nonet and mediates the nuclear force along with pions and rho mesons.
The most common decay mode for the ω meson is
π+
π0
π−
at 89.2±0.7%, followed by
π0
γ
at 8.34±0.26%.
Particle name | Particle symbol |
Antiparticle symbol |
Quark content |
Rest mass (MeV/c2) | IG | JPC | S | C | B' | Mean lifetime (s) | Commonly decays to (>5% of decays) |
---|---|---|---|---|---|---|---|---|---|---|---|
Omega meson | ω (782) |
Self | 782.66 ± 0.13 | 0− | 1−− | 0 | 0 | 0 | (7.58±0.11)×10−23 s | π+ + π0 + π− or π0 + γ |
The quark composition of the
ω
meson can be thought of as a mix between
u
u
,
d
d
and
s
s
states, but it is very nearly a pure symmetric
u
u
-
d
d
state. This can be shown by deconstructing the wave function of the
ω
into its component parts. We see that the
ω
and
ϕ
mesons are mixtures of the SU(3) wave functions as follows.
where
The mixing angle at which the components decouple completely can be calculated to be , which almost corresponds to the actual value calculated from the masses of 35°. Therefore, the
ω
meson is nearly a pure symmetric
u
u
-
d
d
state.
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