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UrduScientific rules about “chiral symmetry” predict the existence of subatomic particles called pions. The lifetime of a neutrally charged pion is tied to breaking of chiral symmetry. Until recently, measurements of this lifetime have been much less precise than calculations from theory. Physicists have now measured a pion’s lifetime more precisely than ever before.
Tag: pions
Supercomputer Calculations May Give First Look at the Structure of Two-Faced Pions
Pions consist of a quark paired to an antiquark and are the lightest particles to experience the strong force. But until recently scientists did not understand pions’ internal structure because of their short lifespan. Now, an advance in supercomputer calculations using lattice Quantum Chromodynamics may allow scientists to provide an accurate and precise description of pion structure for the first time.