| 释义 |
Definition of hadron in English: hadronnoun ˈhadrɒnˈhædˌrɑn Physics A subatomic particle of a type including the baryons and mesons, which can take part in the strong interaction. Example sentencesExamples - A proton, found in the nucleus of an atom, is composed of three quarks and is a hadron.
- The simplest hadrons are therefore mesons made from a quark and antiquark pair (where the difference is zero), and baryons made of three quarks (where the difference is three).
- For example, the earliest version of the theory could only accommodate bosons, whereas many hadrons - including the proton and neutron - are fermions.
- Protons, neutrons, pions, and the elaborate array of other hadrons discovered in the last half-century are thought to be understood in terms of their constituent quarks and gluons.
- Beams of hadrons, such as protons, neutrons and ions, offer important advantages over X-ray radiotherapy.
Derivatives adjectivehaˈdrɒnɪk Physics In the mid-1990s two groups independently calculated a small, troublesome contribution to the muon g factor called hadronic light-by-light scattering. Example sentencesExamples - Because the heavy quark is relatively inert, one can extract the properties of different light-quark configurations from the hadronic spectrum.
- This process results in two jets of hadronic particles as the quarks form hadrons.
- At earlier times than this, the familiar hadronic particles dissolve into a soup of quarks.
- ‘Color,’ as in quantum chromodynamics, refers here to the hadronic analogue of charge rather than to anything optical.
Origin 1960s: from Greek hadros 'bulky' + -on. Definition of hadron in US English: hadronnounˈhadˌränˈhædˌrɑn Physics A subatomic particle of a type including the baryons and mesons, which can take part in the strong interaction. Example sentencesExamples - A proton, found in the nucleus of an atom, is composed of three quarks and is a hadron.
- The simplest hadrons are therefore mesons made from a quark and antiquark pair (where the difference is zero), and baryons made of three quarks (where the difference is three).
- For example, the earliest version of the theory could only accommodate bosons, whereas many hadrons - including the proton and neutron - are fermions.
- Beams of hadrons, such as protons, neutrons and ions, offer important advantages over X-ray radiotherapy.
- Protons, neutrons, pions, and the elaborate array of other hadrons discovered in the last half-century are thought to be understood in terms of their constituent quarks and gluons.
Origin 1960s: from Greek hadros ‘bulky’ + -on. |