Pions is an English word. Below you'll find 10+ example sentences showing how it's used in practice.
Pions meaning
plural of pion
Using Pions
- The main meaning on this page is: plural of pion
- In the example corpus, pions often appears in combinations such as: charged pions, positive pions, the pions.
Context around Pions
- Average sentence length in these examples: 24.6 words
- Position in the sentence: 6 start, 2 middle, 6 end
- Sentence types: 14 statements, 0 questions, 0 exclamations
Corpus analysis for Pions
- In this selection, "pions" usually appears near the start of the sentence. The average example has 24.6 words, and this corpus slice is mostly made up of statements.
- Around the word, charged, positive, muons, pionic and decayed stand out and add context to how "pions" is used.
- Recognizable usage signals include atoms or pions pionic atoms and electrons muons pions or others. That gives this page its own corpus information beyond isolated example sentences.
- By corpus frequency, "pions" sits close to words such as aat, abenomics and abraxas, which helps place it inside the broader word index.
Example types with pions
The same corpus examples are grouped by length and sentence type, making it easier to see the contexts in which the word appears:
However, in the quark model, the rhos are excited states of pions. (12 words)
An experiment at Los Alamos created a large number of low-energy muon antineutrinos from the production of positive pions. (20 words)
For example, electrons may be replaced by other negatively charged particles such as muons (muonic atoms) or pions (pionic atoms). (20 words)
Also observed, for charged pions only, is the very rare "pion beta decay " (with branching fraction of about 10 −8 ) into a neutral pion, an electron and an electron antineutrino (or for positive pions, a neutral pion, a positron, and electron neutrino). (42 words)
They are unstable, with the charged pions and decaying with a mean lifetime of 26 nanoseconds (main seconds), and the neutral pion decaying with a much shorter lifetime of main seconds. (31 words)
If their current quarks were massless particles, it could make the chiral symmetry exact and thus the Goldstone theorem would dictate that all pions have a zero mass. (28 words)
Example sentences (14)
Also observed, for charged pions only, is the very rare "pion beta decay " (with branching fraction of about 10 −8 ) into a neutral pion, an electron and an electron antineutrino (or for positive pions, a neutral pion, a positron, and electron neutrino).
The pions, which turned out to be examples of Yukawa's proposed mesons, were discovered later: the charged pions in 1947, and the neutral pion in 1950.
An experiment at Los Alamos created a large number of low-energy muon antineutrinos from the production of positive pions.
For example, electrons may be replaced by other negatively charged particles such as muons (muonic atoms) or pions (pionic atoms).
However, in the quark model, the rhos are excited states of pions.
However, the Grand Unified Theories (GUTs) predict that can decay into lighter energetic charged particles such as electrons, muons, pions or others which can be observed.
If their current quarks were massless particles, it could make the chiral symmetry exact and thus the Goldstone theorem would dictate that all pions have a zero mass.
In the "isospin picture", the three pions and three rhos were thought to be the different states of two particles.
Pions are the lightest mesons (and, more generally, the lightest hadrons ), because they are composed of the lightest quarks (the u and d quarks).
Pions were first identified by their unusual "double meson" tracks, which were left by their decay into a putative meson.
That explains why the masses of the three kinds of pions are considerably less than that of the other mesons, such as the scalar or vector mesons.
The pions decayed producing neutrinos, and the neutrino interactions observed within a time window in a detector at a distance were consistent with the speed of light.
They are unstable, with the charged pions and decaying with a mean lifetime of 26 nanoseconds (main seconds), and the neutral pion decaying with a much shorter lifetime of main seconds.
This same logic works just as well for the highly successful theory of low-energy pions as for quantum gravity.
Common combinations with pions
These word pairs occur most frequently in English texts: