Observation of a broad peak in the production of four charged pions by e+ e- collisions around 1.6 gev

Lett.Nuovo Cim. 3 (1972) 689-692, 1972.

Abstract (data abstract)
FRASCATI-ADONE, MU-PI GROUP. EVIDENCE FOR RHOPRIME(1600)0 & lt;PI+ PI+ PI- PI-& gt;.

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