jtbell said:The lightest anti-baryon is the antiproton, so any anti-baryon will eventually decay to an antiproton.
Antiprotons are stable against decay (so far as we know), just like protons. However, sooner or later (probably sooner) an antiproton will encounter a proton and the two will annihilate:
http://en.wikipedia.org/wiki/Annihilation#Proton-antiproton_annihilation
Baryons are a group of subatomic particles that are made up of three quarks. They include protons and neutrons, which make up the nucleus of an atom. Anti-baryons are the antimatter counterparts of baryons, with the same mass but opposite charge.
Baryon decay refers to the process in which a baryon particle transforms into a different type of particle, such as a meson or a lepton. This process is governed by the weak nuclear force and can occur spontaneously or through interactions with other particles.
No, not all baryons decay into protons. Baryons can decay into a variety of different particles, depending on their specific properties and interactions. For example, a neutron can decay into a proton, electron, and neutrino, while a lambda baryon can decay into a proton, pion, and photon.
Yes, the same process of decay applies to both baryons and anti-baryons. Just as baryons can decay into different particles, anti-baryons can also undergo decay into their respective anti-particles. For example, an anti-proton can decay into an anti-neutron, positron, and antineutrino.
Baryon decay has significant implications for the evolution and structure of the universe. If baryons were to completely decay into lighter particles, it would lead to a decrease in the total mass of the universe. However, current observations and experiments suggest that baryon decay is a rare occurrence, and most baryons are expected to remain stable for a very long time.