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  • 1
    Electronic Resource
    Electronic Resource
    The inclusive proton spectrum for $$\bar pd \to 3\pi p$$ at rest re-examined (1991)
    Springer
    The European physical journal 340 (1991), S. 187-190 
    Details
    ISSN: 1434-601X
    Keywords: 13.75.Cs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We re-analyze the spectator proton distribution for ¯pd→π + π− π− p. For this channel previous calculations underestimated the cross section for proton momenta of 300 to 600 MeV/c by about a factor 7 while the channels with higher pion multiplicities and the ¯pd→K¯ Kmπp reactions were well explained. By using detailed experimental information on ¯pn and ¯pp annihilation, meson rescattering can in fact explain the cross section also for the 3π case. The¯ pp annihilation followed by charge exchange pion rescattering is much larger than in the 5π case. Vector meson exchange is small but not negligible at high spectator momenta.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01303831
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Calculation of $$\bar pp \to \phi \phi$$ using two-meson intermediate states (1993)
    Springer
    The European physical journal 345 (1993), S. 207-209 
    Details
    ISSN: 1434-601X
    Keywords: 13.75.Cs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study the two-meson intermediate state contributions to the¯ pp →φφ reaction. The estimated cross section from the ¯KK intermediate states is close to the recent preliminary data of the JETSET experiment at LEAR. We have also analysedpp intermediate states and ω-φ mixing mechanisms. Their contributions are found to be much smaller than the ¯KK contribution. Implications for the search of gluonic intermediate states are discussed. Results on similar intermediate two-meson contributions to ¯pp →φπ at rest are also briefly presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01293345
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Diquark model for protonium annihilation into two mesons (1993)
    Springer
    The European physical journal 345 (1993), S. 41-45 
    Details
    ISSN: 1434-601X
    Keywords: 13.75.Cs ; 24.10.Eq
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An effective diquark model is constructed for protonium annihilation into two meons. Branching ratios are calculated and compared with experimental data. The agreement is within two standard deviations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01290338
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Dynamics of multipionp¯ p annihilation (1992)
    Springer
    The European physical journal 342 (1992), S. 439-445 
    Details
    ISSN: 1434-601X
    Keywords: 13.75.Cs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We construct a dynamical model to study the pion correlations in the 5π annihilation ofp¯ p at rest. For the resonant channels, the simplest Lorentz-invariant couplings have been used. It is found that, in addition to the Bose-Einstein correlations caused by the finite size of the source, the dynamical correlations from the channels with intermediate resonances are important for explaining the experimental two-pion correlation function. The reliability of two standard methods for pion interferometry is tested in our model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294954
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Rates for the reactions $$\bar pp \to \pi \phi $$ andγ φ (1994)
    Springer
    The European physical journal 347 (1994), S. 281-284 
    Details
    ISSN: 1434-601X
    Keywords: 13.75.Cs ; 12.40.Vv
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study ¯pp annihilation at rest intoπφ andγφ. Rescattering by ¯K*K+K*¯K and ρ+ρ− for ¯pp→πφ states is sizable, of order (0.90 to 2.6) × 10−4 in the branching ratio, but smaller than experiment. For ¯pp→γφ the rescattering contributions are negligible, but theγφ channel is well explained by aρφ intermediate state combined with vector meson dominance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289796
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    N $$\bar N$$ annihilation into two body channels (1992)
    Springer
    The European physical journal 341 (1992), S. 191-192 
    Details
    ISSN: 1434-601X
    Keywords: 13.75.Cs ; 24.10.Eq
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A simple model is constructed forN¯N annihilations into two non-strange mesons. Determining the ratio of isospin one to isospin zero annihilation by experimental information we predict the branching ratios for these channels. The agreement with experiment is surprisingly good.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01298479
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    Paper (German National Licenses)
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