Possible decays of buttomonium

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SUMMARY

The discussion focuses on the decay mechanisms of bottomonium (b\bar{b}), specifically the Υ(1s) state. Participants analyze the roles of weak, electromagnetic, and strong interactions in these decays. It is established that while weak and electromagnetic interactions can produce final states of quark-antiquark or lepton-antilepton pairs, strong interactions, particularly those involving three gluons, are significant despite being OZI suppressed. The discussion emphasizes the importance of the particle's spin in determining the decay channels.

PREREQUISITES
  • Understanding of bottomonium states, specifically Υ(1s).
  • Knowledge of particle interactions: weak, electromagnetic, and strong.
  • Familiarity with OZI suppression in quantum chromodynamics.
  • Basic concepts of quark-antiquark pair production.
NEXT STEPS
  • Research the decay mechanisms of other bottomonium states beyond Υ(1s).
  • Explore the implications of OZI suppression in particle physics.
  • Study the role of gluons in strong interactions and their decay processes.
  • Investigate the significance of particle spin in decay channels.
USEFUL FOR

Particle physicists, researchers in quantum chromodynamics, and students studying the properties and decays of mesons, particularly bottomonium.

kuecken
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Hello, I need some help understanding the possible decays of buttomonium b\bar{b}.

If I consider weak and electromagnetic interaction I could get final quark-anti-quark pairs, by simply annihilating b\bar{b}, or lepton-anti-lepton pairs (the neutral ones only with Zo resonance).
So why are we looking for strong interaction? They are stronger, but also suppressed in this case, if we assume the mass of b\bar{b} is below the one to from b-mesons.

So is it the case that the three gluon involving OZI suppressed decay is still stronger then the weak and EM interaction?

Thank you!
 
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Which bottomonium? The annihilation to two quarks or leptons via a virtual photon depends on the spin of the particle.

As an example, Υ(1s) likes to decay to three gluons: http://pdg8.lbl.gov/rpp2013v2/pdgLive/Particle.action?node=M049
 
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I was not thinking about a specific one. The link actually helps a lot thanks.
 

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