Register to reply

Possible decays of buttomonium

by kuecken
Tags: buttomonium, decays
Share this thread:
kuecken
#1
Apr5-14, 05:32 AM
P: 16
Hello, I need some help understanding the possible decays of buttomonium b[itex]\bar{b}[/itex].

If I consider weak and electromagnetic interaction I could get final quark-anti-quark pairs, by simply annihilating b[itex]\bar{b}[/itex], 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[itex]\bar{b}[/itex] 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!
Phys.Org News Partner Physics news on Phys.org
Refocusing research into high-temperature superconductors
Neutron tomography technique reveals phase fractions of crystalline materials in 3-dimensions
Tiny magnets, huge fields: Nanoscale ferromagnetic electrodes create chemical equivalent of solid-state spin valve
mfb
#2
Apr5-14, 06:35 AM
Mentor
P: 11,631
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: 82%
kuecken
#3
Apr5-14, 10:52 AM
P: 16
I was not thinking about a specific one. The link actually helps a lot thanks.


Register to reply