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smk
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What is difference between beta particle and electron? I mean in spin, mass or other properties.
smk said:Thanks I m confused when I studied that in beta decay W- decay into electron and antineutrino. when we see the spin of w- then it is -1.this is TRUE only when electron and antineutrino both have spin half (down).sir this is my own thinking may be I m wrong.thanks
Nugatory said:Beta decay is a process by which a beta particle - which is an electron - is produced along with an antineutrino as a proton converts into a neutron.
To conserve angular momentum, the electron and neutrino spins need to be aligned - you are thinking.Thanks I m confused when I studied that in beta decay W- decay into electron and antineutrino. when we see the spin of w- then it is -1.this is TRUE only when electron and antineutrino both have spin half (down).
Simon Bridge said:##p^+ \to n^0 + e^- + \bar \nu_e## does not conserve charge?
You mean: ##n^0 \to p^+ + e^- + \bar \nu_e##
smk said:sir what do you think energy is conserved here.since we know that W is havier .
To be small, you need very special nuclei like Tritium.ChrisVer said:In strict language, yes there would be a small jump(due to coulomb potential).
mfb said:To be small, you need very special nuclei like Tritium.
In general, neutron and proton numbers in a nuclei are so different that the most high-energetic occupied neutron state and the available unoccupied proton states have different quantum numbers.
snorkack said:Does it mean that in general, beta decay cannot occur to a ground state of a daughter nucleus, but to such an excited state of the daughter nucleus where the daughter proton is on the orbit vacated by the mother neutron?
No, and I don't see how you got that idea. A decay to the ground state is always possible. In some cases it is quite unlikely.snorkack said:Does it mean that in general, beta decay cannot occur to a ground state of a daughter nucleus
Often that's not even possible (especially in beta+ decays).but to such an excited state of the daughter nucleus where the daughter proton is on the orbit vacated by the mother neutron?
Beta decay is a type of radioactive decay in which a nucleus emits a beta particle, which can be either an electron or a positron, and transforms into a different element. It is a process that occurs in unstable atoms in order to become more stable.
Beta decay occurs due to the imbalance of protons and neutrons in the nucleus of an atom. In order to achieve a more stable ratio, the nucleus will emit a beta particle in the form of an electron or positron.
There are three types of beta decay: beta minus decay, beta plus decay, and electron capture. In beta minus decay, a neutron in the nucleus is converted into a proton, emitting an electron and an antineutrino. In beta plus decay, a proton is converted into a neutron, emitting a positron and a neutrino. Electron capture is when an electron from an inner shell of the atom is absorbed by the nucleus, resulting in the emission of a neutrino.
Beta decay can either increase or decrease the stability of an atom, depending on the specific type of decay. In some cases, beta decay can transform an unstable atom into a more stable one, while in other cases it can lead to further decay and instability.
Beta decay is a spontaneous process and cannot be controlled or stopped. However, the rate of beta decay can be affected by external factors such as temperature and pressure. Additionally, certain elements undergo beta decay at a much slower rate, making them more stable and less likely to undergo decay in a given time period.