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1 answer
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Higgs decay into baryon-antibaryon pair

I have an exercise for "Introduction to high energy physics" and I'm baffled. The exercise states: Problem: Higgs particle of mass 125.7 GeV decays in an exclusive channel of baryon-...
Joanna Szulc's user avatar
0 votes
1 answer
633 views

How does the process $\bar{K}^0+p \to \Lambda^0+\pi^+$ work?

I was asked to find an energy for the $\bar{K}^0+p \to \Lambda^0+\pi^+$ interaction for an exercise and I got curious about how the Feynman diagram for this process would look like. In terms of quarks,...
Mipeal's user avatar
  • 3
3 votes
1 answer
175 views

Why are the lifetimes of the neutral and charged $\Xi$ hyperons so different?

According to the Particle Data Group, the lifetimes of the neutral and charged $\Xi$ baryons differ significantly: $\tau(\Xi^-) = (1.639 \pm 0.015) \times 10^{-10}$ s, while $\tau(\Xi^0) = (2.90 \pm 0....
Martino's user avatar
  • 988
2 votes
1 answer
386 views

$\Omega^0_c \to \Sigma^+ K^-K^- \pi^+$ Feynman diagram

How can I work out the Feynman diagram for the decay process, $\Omega^0_c \to \Sigma^+ K^-K^- \pi^+$?
user avatar
3 votes
1 answer
1k views

$\Sigma^{+}$ baryon decay- why no decays to neutron and electron-neutrino pair?

I am working on a homework problem involving a decay of the form $\Sigma^+\rightarrow n+e^++\nu_e$, with the goal of providing justification for why this decay is not experimentally observed. To ...
arlofbreerdtson's user avatar
1 vote
1 answer
552 views

Conservation of Baryon number for this proton decay

The conservation law requires that Baryon number be conserved; that is, the sum of the Baryon number before and after a reaction/ decay must always equal the sum of the Baryon number after the ...
Physkid's user avatar
  • 889