The f2(1565) in pbar-p -> (omega-omega)pizero interactions at rest
C.A. Baker, B.M. Barnett, C.J. Batty, K. Braune, D.V. Bugg, O. Cramer,, V. Crede, N. Djaoshvili, W. Dunnweber, M.A. Faessler, N.P. Hessey, P. Hidas,, C. Hodd, D. Jamnik, H. Kalinowsky, J. Kisiel, E. Klempt, C. Kolo, L., Montanet, B. Pick, W. Roethel, A. Sarantsev, I. Scott
TL;DR
This paper reports experimental data on antiproton-proton interactions at rest, identifying the f2(1565) resonance decaying into omega-omega and pizero-pizero, with detailed analysis of initial state contributions and decay angular correlations.
Contribution
It provides new experimental evidence of the f2(1565) resonance decaying into omega-omega and pizero-pizero, with detailed analysis of initial state contributions in pbar-p annihilation at rest.
Findings
Strong signal of f2(1565) -> omega-omega observed
Dominance of P-state annihilation in production
Combined fit confirms f2(1565) -> pizero-pizero decay
Abstract
Data are presented on the reaction pbar-p -> omega-omega-pizero at rest from the Crystal Barrel detector. These data identify a strong signal due to f2(1565) -> omega-omega. The relative production from initial pbar-p states 3P2, 3P1 and 1S0 is well determined from omega-omega decay angular correlations; P-state annihilation dominates strongly. A combined fit is made with data on pbar-p -> 3pizero at rest, where f2(1565) -> pizero-pizero is observed.
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