Fukui-KEK-Kyoto Sangyo-Osaka-Tokyo Metropolitan
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Pontecorvo reactions in antiproton annihilation at rest in deuterium to pi0 n, pi0 Delta0, eta n and eta Delta0.

The Fukui-KEK-Kyoto Sangyo-Osaka-Tokyo Metropolitan collaboration Chiba, M. ; Fujitani, T. ; Iwahori, J. ; et al.
Phys.Rev.D 55 (1997) 2577-2583, 1997.
Inspire Record 424916 DOI 10.17182/hepdata.41181

Using modularized NaI(Tl) detectors, we carried out a high statistics measurement of inclusive γ-ray, π0, and η spectra, and determined the branching ratios or upper limits of Pontecorvo reactions p¯d→π0n, π0Δ0, ηn, and ηΔ0 from the corresponding monochromatic peaks in them. The obtained branching ratios are B(p¯d→π0n)=(1.03±0.41)×10−5, B(p¯d→π0Δ0)=(4.67±1.66)×10−5, B(p¯d→ηn)<8.94×10−6 (95% C.L.), and B(p¯d→ηΔ0)<6.49×10−5 (95% C.L.).

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