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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 - Wikipedia
    The pion is one of the particles that mediate the residual strong interaction between a pair of nucleons This interaction is attractive: it pulls the nucleons together
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  • 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
  • Pion - GitHub
    The Open Source, Cross Platform Stack for Real-time Media and Data Communication - Pion
  • Pion Inc. - LinkedIn
    Pion’s range of scientific instruments and services provide innovative solutions to the challenges of in vivo prediction, phys chem analysis, dissolution, and more
  • Posterior Ischemic Optic Neuropathy - EyeWiki
    Posterior Ischemic Optic Neuropathy (PION) is an acute optic neuropathy due to ischemia in the posterior (retrobulbar) portion of the optic nerve
  • Pion Power
    Over the past year, Pion Power proudly introduced two Level 2 Portable EV chargers, addressing the escalating demand for
  • Pion Global Private Limited | AI-Powered IT Products Services
    Pion Global Private Limited combines technological expertise with business insight to deliver innovative products, smart solutions, and strategic alliances — driven by agile teams and a relentless focus on market growth
  • Pion Inc. - YouTube
    Pion stands behind the science Unique Instruments and Services that Help Scientists Make Informed Decisions About Food and Drug Formulation from R D to Manuf





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