New 'Mystery Meson' Sub-Atomic Particle Discovered

securitas writes "The BBC reports that scientists in Japan have discovered a new sub-atomic particle that defies current theories of matter and energy. The 'mystery meson' X(3872) was revealed while studying beauty quarks at the KEK High Energy Accelerator Research Organization Tsukuba meson factory. 'It weighs about the same as a single atom of helium and exists for only about one billionth of a trillionth of a second before it decays into other longer-lived, more familiar particles.' Scientists say the lifespan 'is nearly an eternity for a sub-atomic particle this heavy' and may require a change in current theory. Possible explanations for this include the particle being comprised of two quarks and two antiquarks, instead of the usual one-one pairing. More explanation and illustrations at KEK."

Comments

Re:The Standard Model

[darkstar949]

According to the articals the particle doesn't violate the Standard Model, however, the current Standard Model will need a change to allow for this particle. Of course it should be noted that the Standard Model is a patch-work affair based on observation with out much understanding of how everything fits together and as such will still don't know how everything works.

Aggregation creates stabilization?

[G4from128k]

I'm not surprised that unsual particles like this are being discovered. Perhaps the long halflife of this particle suggests that aggregation can lead to stablization. In the same way that neutrons are stabilized by protons on the nuclei of everyday matter, I'd bet that mesons can be stabilized either by other mesons or baryons.

Perhaps this won't overturn pre-existing models for elementary particles, but lead to extensions of theories on how aggregates of these particles behave.