Definition of muon in English:

muon

noun ˈmjuːɒnˈmjuɑn

Physics

An unstable subatomic particle of the same class as an electron (a lepton), but with a mass around 200 times greater. Muons make up much of the cosmic radiation reaching the earth's surface.
〔物理〕μ（介）子
Example sentencesExamples
- The number of times that an antimuon emits a positron in the same direction as its polarization was found to be equal to the number of times that a muon emits an electron in the opposite direction.
- The proton and the neutron are baryons; the electron, the muon, and the neutrino are leptons; whilst the pions are mesons.
- Incidently, before the quark theory was invented to understand the properties of elementary particles the term ‘meson’ was also applies to muons - which are not made up of quarks but are fundamental point particles like the electron.
- These objects also produce high-energy massive particles such as electrons, muons, protons and anti-protons.
- Comsic rays are very high energy particles which strike the Earth's atmosphere and produce spectacular showers of billions of electrons, muons, and other particles.

Derivatives

muonic

adjective

Physics

For muonic atoms, the Bohr-Weisskopf effect can account for half of the hyperfine structure interaction.
Example sentencesExamples
- This new method allows studies of the nuclear properties and nuclear sizes of unstable atoms by means of the muonic X-ray method at facilities where both negative muon and radioactive nuclear beams would be available.
- The nuclear interaction in muonic molecules can be treated as a perturbation using the smallness of the nuclear scattering amplitude in comparison with the molecular scale.
- Understanding muonic atom formation and the cascade process to the ground state is important, since they affect muon transfer from excited states, as well as the creation of hot atoms via acceleration.

Origin

1950s: contraction of mu-meson; the particle, however, is no longer regarded as a meson.

Definition of muon in US English:

muon

nounˈmyo͞oänˈmjuɑn

Physics

An unstable subatomic particle of the same class as an electron (a lepton), but with a mass around 200 times greater. Muons make up much of the cosmic radiation reaching the earth's surface.
〔物理〕μ（介）子
Example sentencesExamples
- The proton and the neutron are baryons; the electron, the muon, and the neutrino are leptons; whilst the pions are mesons.
- The number of times that an antimuon emits a positron in the same direction as its polarization was found to be equal to the number of times that a muon emits an electron in the opposite direction.
- Comsic rays are very high energy particles which strike the Earth's atmosphere and produce spectacular showers of billions of electrons, muons, and other particles.
- These objects also produce high-energy massive particles such as electrons, muons, protons and anti-protons.
- Incidently, before the quark theory was invented to understand the properties of elementary particles the term ‘meson’ was also applies to muons - which are not made up of quarks but are fundamental point particles like the electron.

Origin

1950s: contraction of mu meson; the particle, however, is no longer regarded as a meson.

单词	muon
释义	Definition of muon in English: muon noun ˈmjuːɒnˈmjuɑn Physics An unstable subatomic particle of the same class as an electron (a lepton), but with a mass around 200 times greater. Muons make up much of the cosmic radiation reaching the earth's surface. 〔物理〕μ（介）子 Example sentencesExamples The number of times that an antimuon emits a positron in the same direction as its polarization was found to be equal to the number of times that a muon emits an electron in the opposite direction. The proton and the neutron are baryons; the electron, the muon, and the neutrino are leptons; whilst the pions are mesons. Incidently, before the quark theory was invented to understand the properties of elementary particles the term ‘meson’ was also applies to muons - which are not made up of quarks but are fundamental point particles like the electron. These objects also produce high-energy massive particles such as electrons, muons, protons and anti-protons. Comsic rays are very high energy particles which strike the Earth's atmosphere and produce spectacular showers of billions of electrons, muons, and other particles. Derivatives muonic adjective Physics For muonic atoms, the Bohr-Weisskopf effect can account for half of the hyperfine structure interaction. Example sentencesExamples This new method allows studies of the nuclear properties and nuclear sizes of unstable atoms by means of the muonic X-ray method at facilities where both negative muon and radioactive nuclear beams would be available. The nuclear interaction in muonic molecules can be treated as a perturbation using the smallness of the nuclear scattering amplitude in comparison with the molecular scale. Understanding muonic atom formation and the cascade process to the ground state is important, since they affect muon transfer from excited states, as well as the creation of hot atoms via acceleration. Origin 1950s: contraction of mu-meson; the particle, however, is no longer regarded as a meson. Definition of muon in US English: muon nounˈmyo͞oänˈmjuɑn Physics An unstable subatomic particle of the same class as an electron (a lepton), but with a mass around 200 times greater. Muons make up much of the cosmic radiation reaching the earth's surface. 〔物理〕μ（介）子 Example sentencesExamples The proton and the neutron are baryons; the electron, the muon, and the neutrino are leptons; whilst the pions are mesons. The number of times that an antimuon emits a positron in the same direction as its polarization was found to be equal to the number of times that a muon emits an electron in the opposite direction. Comsic rays are very high energy particles which strike the Earth's atmosphere and produce spectacular showers of billions of electrons, muons, and other particles. These objects also produce high-energy massive particles such as electrons, muons, protons and anti-protons. Incidently, before the quark theory was invented to understand the properties of elementary particles the term ‘meson’ was also applies to muons - which are not made up of quarks but are fundamental point particles like the electron. Origin 1950s: contraction of mu meson; the particle, however, is no longer regarded as a meson.
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