Light quark spectroscopy at the Fermilab antiproton accumulator
1993
Abstract Fermilab experiment E-760 has confirmed the f 2 (1520) state in the 3π o final state in antiproton-proton annihilations in-flight (~3.0 to 3.6 GeV c.m. energy), seen previously by Crystal Barrel and other groups at CERN at rest. The f 2 (1520) is also seen in its 2π o decay mode in the 2π o η channel and 2η decay mode in the π o 2η channel. There are indications of this state in the 3η decay channel. The invariant mass spectrum is rich in states near 2 GeV, and amplitude and spin/parity analysis of the Dalitz plot is in progress in this mass region.
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