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Exclusive final states in anti-n p annihilation

A. Bertin,M. Bruschi,M. Capponi,B. Cereda,S. De Cecco,Antonio Ferretti+84 more-1996-01-01-High-Energy Physics Literature Database (CERN, DESY, Fermilab, IHEP, and SLAC)
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The results of a spin-parity analysis of (n) over bar p annihilation in the channels with 3 and 5 charged pions are presented. In the former case, the analysis suggests the existence of two resonances with quantum numbers 0(++) and 2(++) around 1500-1550 MeV/c(2); in the latter case, the presence of a broad resonance at about 1350 MeV/c(2) decaying dominantly into rho rho is confirmed, but a great amount of rho sigma (1(-)) nonresonant background is required

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The results of a spin-parity analysis of (n) over bar p annihilation in the channels with 3 and 5 charged pions are presented. In the former case, the analysis suggests the existence of two resonances with quantum numbers 0(++) and 2(++) around 1500-1550 MeV/c(2); in the latter case, the presence of a broad resonance at about 1350 MeV/c(2) decaying dominantly into rho rho is confirmed, but a great amount of rho sigma (1(-)) nonresonant background is required

Keywords

AnnihilationPionPhysicsParity (physics)SigmaQuantum numberResonance (particle physics)Nuclear physics

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