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6533b7d4fe1ef96bd12631b2

RESEARCH PRODUCT

The pseudoscalar mixing angle ΘPS from ν and ν′ production in annihiltion at rest

B. KämmleČ. ZupančičM. EnglertS. V. DombrowskiBernhard SchmidP. BlümG. PinterM. SuffertU. Meyer-berkhoutM. MerkelD.v. BuggR. LandauB. M. BarnettC. FelixP. HidasC. KoloC.j. BattyL. MontanetR. HackmannNigel HesseyJ. KisielEberhard KlemptT. KielC. A. MeyerH. P. DietzK. BeuchertR. BossinghamC.a. BakerN. WinterH. BossyU. WiednerD. JamnikD. EngelhardtF. H. HeinsiusP. IllingerJ. P. MerloA. NobleMichael DoserA. H. SanjariA. CooperC. VölckerC. StraβburgerK. KönigsmannJ. ZollHerbert KochJames A. BistirlichKenneth M. CroweS. RavndalMarcel KunzeD. WaltherM. A. FaesslerS. SpanierR.p. HaddockI. AugustinH. MatthaeyP. SchmidtK. PetersU. StrohbuschW. DünnweberJ. LüdemannP. BirienD. UrnerT. CaseClaude AmslerK. BrauneS. U. ChungH. KalinowskyE. SchäferG. FolgerMichael KobelMark J. Burchell

subject

PhysicsPseudoscalarRest (physics)Nuclear and High Energy PhysicsParticle physicsBranching fractionMixing (physics)

description

Abstract We have determined ratios of branching ratios for p p annihilations at rest into π0η and π0η′, into ηη and ηη′, and into ωη and ωη′. All reactins are observed in two different all-neutral final states. The ratios permit a determination of the pseudoscalar mixing angle. We find ΘPS = −(17.3±1.8)°.

yearjournalcountryeditionlanguage
1992-11-01Physics Letters B
https://doi.org/10.1016/0370-2693(92)91547-m
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