Chiral Symmetry and Particle Physics

Aula Bruno Touschek (Laboratori Nazionali di Frascati, Via Enrico Fermi 40, Frascati)

Aula Bruno Touschek

Laboratori Nazionali di Frascati, Via Enrico Fermi 40, Frascati

Via Enrico Fermi 40 00044 Frascati

Chiral Symmetry has played a fundamental role in particle physics and is still a major theoretical tool. In this Lecture, I shall describe how Bruno Touschek first introduced it in 1957, after the discovery of the non-conservation of Parity. Further theoretical developments, by Salam, Feynman and Gell-Mann , will be described. Some recent applications, to obtain fundamental hadronic quantities like the pion scattering lengths, will be illustrated in detail.

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