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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
  • Pion - Leader in Next-Gen Pharma Development
    We’ll Save You the Work You handle saving lives Pion solutions help reduce risk and uncertainty in drug formulation About Us
  • 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
  • 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 | Payment Processing | card payment processing, acquiring
    PION is a PSD2 SCA ready all-in-one secure credit card processing solution for your online business It will help you, as a merchant, process and store credit cards right on your website, accept recurring payments and reorders
  • Peachy Canyon Winery - Paso Robles
    Peachy Canyon Winery, the 10th oldest winery in Paso Robles, offers premium handcrafted Zinfandel and a variety of wines in a historic tasting room and kid-friendly space
  • ESS Portal | Employee Self Service System - PionHR
    SGC, PION, SGCMS SGC IT are registered trademarks of SGC Management Services Private Limited Download Brochure
  • Pion - GitHub
    The Open Source, Cross Platform Stack for Real-time Media and Data Communication - Pion
  • 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 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





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