The story
From the pronunciation of its symbol π⁻.
Etymology from Wiktionary, CC BY-SA 4.0.
pi-minus
Today it means: The negative pion, composed of a down quark and an anti-up quark. Full definition →
Today it means: The negative pion, composed of a down quark and an anti-up quark. Full definition →
From the pronunciation of its symbol π⁻.
Etymology from Wiktionary, CC BY-SA 4.0.