Noun
The edible seed of several species of pine; also, the tree producing such seeds, as Pinus Pinea of Southern Europe, and P. Parryana, cembroides, edulis, and monophylla, the nut pines of Western North America.
See Monkey's puzzle.
Source: Webster's dictionaryThe research included neutron resonance spectroscopy, the angular distribution of pion elastic and inelastic scattering on nuclei with optical model fitting. James Rainwater
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). Source: Internet
In Skyrme's model, reproduced in the large N or string approximation to quantum chromodynamics (QCD), the proton and neutron are fermionic topological solitons of the pion field. Source: Internet
Following the discovery of the pion, Yukawa was awarded the 1949 Nobel Prize in Physics for his predictions. Source: Internet
Here, a proton, consisting of two up quarks and a down, decays into a pion, consisting of an up and anti-up, and a positron, via an X boson with electric charge -4/3. Source: Internet
December 18, 2013 Neutral pion decays The meson has a mass of main and a mean lifetime of main. Source: Internet