Main Question or Discussion Point
Excited baryon could decay into photon and ground state baryon,but could it decay into omega meson and ground state baryon?Could you introduce me some articles about it,experimental or theoretical?
From theoretical respect,yes.But every unstable particle has its favorate mode of decay,so we could at last determine it through experiment.Has that process been discovered ?There are excited baryons that can undergo several decays....
If the conservation laws are satisfied then the decay can exist...
Take for example the [itex]\Delta^+[/itex] baryon which is an excited proton, and it decays to proton via:
[itex] \Delta^+ \rightarrow p + \pi^0 [/itex]
So I don't see why there can't be an omega-meson participating in such processes. The only problem of omega, in comparison to pions, is its large mass...
The N(1875), provided that it is real, has a 20% branching fraction to omega + N.
The mechanism is weak interaction? Maybe, to research the hadron decay ,one always has to treate weak interaction,perhaps it implies the connection between Strong and Weak interaction.Then I'd say omega meson is not a favorite decay mode, due to its large mass (small phase space relative to others).
Or are you refering to the Delta+ decay I wrote? Then it's 1 of the 2 most common decays of the Delta+ baryon , and the one that results in a proton [un-excited state] product...
Someone researched the radiative decay of excited baryon ,which is from the decay of J/ψ:There are multiple mesons called ##\omega##. I guess we are talking about the lightest one at 782 MeV.
You can look through the decay modes of http://pdg8.lbl.gov/rpp2014v1/pdgLive/Viewer.action [Broken]. You'll see that a large variety of baryons has reasonable branching ratios with an omega meson. Most of those particles are so short-living that their widths overlap, and you cannot clearly identify the origin of each omega meson individually.
##\Lambda_c^+## has a 1.2% chance to decay to ##\Lambda \pi^+ \omega##. While this might be a rare production mode, the long lifetime of the mother particle can be interesting.
What do you want to do/know?
It can be a strong interaction.The mechanism is weak interaction? Maybe, to research the hadron decay ,one always has to treate weak interaction,perhaps it implies the connection between Strong and Weak interaction.
I upload the article.But I haven't know the complete formalism of partial wave analysis,so I want to get a initial paper on this,do you have ?If you expect us to have a discussion on this, it would be helpful to know who this "somebody" is, and where it was published.
Yes,I want to delate the article I upload,How could I operate?I'd not post a copyrighted paper in a publicly available forum. I'm not sure, whether the APS is strict about this, but it can get expensive. In HEP that's not necessary anyway, because usually everything is also posted to arXiv, and that's the case also here: