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In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which an atomic nucleus emits a beta particle (fast energetic electron or positron), transforming into an isobar of that nuclide.
Jun 6, 2024 · beta decay, any of three processes of radioactive disintegration by which some unstable atomic nuclei spontaneously dissipate excess energy and undergo a change of one unit of positive charge without any change in mass number.
Beta decay is the most common form of radioactive decay. It happens in one of two ways. In one type of beta decay, an unstable atomic nucleus emits an electron and an antineutrino while converting a neutron to a proton.
The beta decay is a radioactive decay in which a proton in a nucleus is converted into a neutron (or vice-versa). In the process the nucleus emits a beta particle (either an electron or a positron) and quasi-massless particle, the neutrino. Recall the mass chain and Beta decay plots of Fig. 7.
Beta decay is a radioactive decay in which a beta ray is emitted from an atomic nucleus. During beta decay, the proton in the nucleus is transformed into a neutron and vice versa. If a proton is converted to a neutron, it is known as β + decay.
Beta decay or β decay represents the disintegration of a parent nucleus to a daughter through the emission of the beta particle. Beta-decay is governed by weak interaction. During beta decay, one of two down quarks changes into an up quark by emitting a W – boson (carries away a negative charge).
In beta-minus decay, a neutron turns into a proton and an electron is produced. So, a +1 is added and a -1 is added, and there's 0 change in net charge. In beta-plus decay, a proton turns into a neutron and a positron is produced. So, a +1 is lost and a +1 is added, and again 0 change in net charge.
May 9, 2024 · The first quantitative rate theory of beta decay was given by Enrico Fermi in 1934, and the essentials of this theory form the basis of modern theory. As an example, in the simplest beta-decay process, a free neutron decays into a proton, a negative electron, and an antineutrino: n → p + e − + ν.
Jul 3, 2022 · Beta decay is a type of radioactive decay that releases an energic electron or positron (the antimatter version of an electron). The process occurs when an atomic nucleus is unstable because it has too many protons or neutrons. In beta minus decay (β − ), a neutron decays into a proton, an antineutrino, and an electron.
The emission of the electron's antiparticle, the positron, is also called beta decay. Beta decay can be seen as the decay of one of the neutrons to a proton via the weak interaction. The use of a weak interaction Feynman diagram can clarify the process.
