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physical object > natural object > particle > boson > meson > pion > pi-

pi-
subject			fact

pi-	has decay product muon, neutrino
	has charge -1
	has mass 273 me
	is an instance of pion
	is an instance of charged particle
charged particle	is accelerated by electric or magnetic fields
pion	has synonym π-meson
particle	obeys uncertainty principle
	has frequency inversely proportional to the wavelength
	has wavelength inversely proportional to its momentum
meson	has spin 0
	has number of quarks 2
charge multiplet	has lifetime -has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press
	has spin -has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press
boson	has quantum behavior Bose-Einstein statistics
physical object	has location or center of gravity
	has angular momentum
	has velocity
	has momentum
	has temperature
	has volume
	has extent
	has material

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