Proton-antiproton annihilations at rest into π0ω, π0η, π0γ, π0π0, and π0η′ |
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Authors: | G Backenstoss M Hasinoff P Pavlopoulos J Repond L Tauscher D Tröster P Blüm R Guigas H Koch M Meyer H Poth U Raich B Richter L Adiels I Bergström K Fransson A Kerek M Suffert K Zioutas |
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Institution: | Institute for Physics, University of Basle, Switzerland;Kernforschungszentrum, Institut für Kernphysik, Institut für experimentelle Kernphysik, Universität Karlsruhe, Karlsruhe, Fed. Rep. Germany;Research Institute for Physics, Stockholm, Sweden;Centre de recherches nucléaires and Université Louis Pasteur, Strasbourg, France;Department of Nuclear Physics, University of Thessaloniki, Greece |
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Abstract: | Proton-antiproton annihilations at rest in liquid hydrogen were investigated through the inclusive γ spectrum, related to the annihilation. The high-energy part of the spectrum was used to deduce branching ratios for the so far unobserved annihilation channels: , , , and . An upper limit for the π0η′ channel was deduced to be . |
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