6533b833fe1ef96bd129b683
RESEARCH PRODUCT
High-statistics analysis of $$\bar pp \to \pi ^0 \pi ^0 \pi ^0 $$ at restat rest
L. MontanetU. Meyer-berkhoutMark J. BurchellC.j. BattyB. SchmidG. PinterT. CaseR. BossinghamA. H. SanjariK. BrauneJ. ZollC. KoloM. SuffertS. RavndalK. BeuchertClaude AmslerC.a. BakerR. HackmannF. WalterD. WaltherN. WinterP. BirienI. AugustinKenneth M. CroweM. A. FaesslerD. JamnikU. StrohbuschF. H. HeinsiusC. VölckerK. PetersD. EngelhardtPàl HidasH. MatthaeyH. KalinowskyC. A. MeyerJames A. BistirlichP. SchmidtO. CramerJ. LüdemannR. P. HaddockW. DünnweberA. NobleE. SchäferJ. SalkMarcel KunzeU. WiednerR. LanduaHerbert KochMichael DoserS. SpanierB. KämmleP. IllingerA. CooperM. EnglertB. M. BarnettNigel HesseyJ. P. MerloK. KönigsmannP. BlümD.v. BuggT. KielG. FolgerMichael KobelČ. ZupančičJ. KisielC. FelixH. BossyZ. JávorfiC. StraßburgerJ. BroseEberhard KlemptH. P. DietzD. UrnerS. V. DombrowskiM. Merkelsubject
Nuclear physicsRest (physics)PhysicsParticle physicsAnnihilationAmplitudePiDalitz plotInvariant (mathematics)Nuclear ExperimentResonance (particle physics)Bar (unit)description
Antiproton-proton annihilation at rest into 3π0 is analysed based on a data sample of about 500 000 high-quality 3π0 events. In this high-statistics Dalitz plot two structures in the region of π0π0 invariant masses of about 1500 MeV show up, a small band and a blob at higher masses. In a first attempt to describe the data two different models are used to parametrize the dynamical amplitudes leading to the same conclusion: the data require a 0+ + and also a 2+ + resonance in the 1500 MeV region.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-11-01 | Il Nuovo Cimento A Series 11 |