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pion    音标拼音: [p'ɑɪ,ɑn]
n. ｋ介子

ｋ介子

pion
n 1: a meson involved in holding the nucleus together; produced
as the result of high-energy particle collision [synonym:
{pion}, {pi-meson}]

Meson \Mes"on\, n. [NL., fr. Gr. me`son middle, neut. of me`sos,
a., middle.]
1. (Anat.) The mesial plane dividing the body of an animal
into similar right and left halves. The line in which it
meets the dorsal surface has been called the dorsimeson,
and the corresponding ventral edge the ventrimeson. --B.
G. Wilder.
[1913 Webster]

2. (Physics) An elementary particle made up of two quarks; a
hadron having a baryon number of zero; any hadron other
than a baryon. Mesons are bosons with integral values of
spin, having a mass intermediate between those of the
electron and a nucleon; they may have positive or negative
charges, or may be neutral. Mesons are of three types: the
{pion} ([pi]-meson), {kaon} (K-mesons), and
{[eta]-mesons}.
[PJC]

{mu meson} (Physics) the former name for the {muon}, a
particle which is not a true meson[2]. The term is no
longer used in technical literature, except historically.
[PJC]


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  • Pion - Leader in Next-Gen Pharma Development
    Pion stands behind the science Unique Instruments and Services that Help Scientists Make Informed Decisions About Drug Formulation from R D to Manufacturing Contact Us
  • pion webrtc: Pure Go implementation of the WebRTC API - GitHub
    example applications contains code samples of common things people build with Pion WebRTC example-webrtc-applications contains more full featured examples that use 3rd party libraries awesome-pion contains projects that have used Pion, and serve as real world examples of usage
  • Meet Pion | Pion - We are Pion
    At Pion, we help brands harness the growth-driving power of consumer groups with full-funnel insights, advertising and verification Our ecosystem of solutions helps expand your brand’s customer base and supercharge sales
  • PION Definition Meaning - Merriam-Webster
    The meaning of PION is a meson that is a combination of up and down quarks and antiquarks, that may be positive, negative, or neutral, and that has a mass about 270 times that of the electron
  • Home - Pion Power
    Take charge and electrify your future with the Pion Power Battery Life is, quite universally, unpredictable; you never know when a storm, extreme weather or even local construction could inadvertently knock out the power to your home, neighbourhood, community or city
  • Pion - Scientific Lib
    In particle physics, pion (short for pi meson) is the collective name for three subatomic particles: π 0, π + and π − Pions are the lightest mesons (excluding the misnamed "Mu Meson" or muon) and play an important role in explaining low-energy properties of the strong nuclear force
  • PION Definition Meaning | Dictionary. com
    Pion definition: the first meson to be discovered: it has spin 0 and may be positively or negatively charged or neutral; charged pions decay into a muon and a neutrino or antineutrino π See examples of PION used in a sentence
  • SFW Capital Partners | Portfolio
    Pion is a leading provider of analytical instrumentation for formulation development and quality control in the life sciences industry Value proposition Helps pharmaceutical scientists to make efficient, early phase screening of drug compounds and provide critical data for the development of drugs Customers
  • About Us - We are Pion
    Pion serves drug food researchers, formulators, and manufacturers globally where data quality, accuracy and reproducibility are valued components of a product development process Our customers want to develop great products to earn their customers’ trust, and we are here to help and support them along the way
  • Pion - (College Physics I – Introduction) - Vocab . . . - Fiveable
    A pion is a type of meson that mediates the strong nuclear force between nucleons Pions come in three varieties: positively charged ($\pi^+$), negatively charged ($\pi^-$), and neutral ($\pi^0$)





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