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  • 2000-2004  (1)
  • 1990-1994  (1)
  • 11.20  (1)
  • PACS. 13.30.-a Decays of baryons – 13.75.Ev Hyperon-nucleon interaction – 21.80Hypernuclei – 25.80.Pw Hyperon-induced reactions  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Avoided resonance overlapping in many-channel scattering (1990)
    Springer
    The European physical journal 337 (1990), S. 243-245 
    Details
    ISSN: 1434-601X
    Keywords: 11.20 ; 24.10.Eq ; 24.30
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The behaviour of interfering resonances is studied within the framework of many-channelS-matrix theory. For the case of one open channel it is shown that at high level density where one naively would expect a strong overlapping, the resonances avoid each other: one resonance accumulates almost the whole sum of the widths of all resonances while the remaining ones become nearly stable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289688
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Nonmesonic decay of the Λ-hyperon in hypernuclei produced by p + Au collisions (2001)
    Springer
    The European physical journal 11 (2001), S. 1-4 
    Details
    ISSN: 1434-601X
    Keywords: PACS. 13.30.-a Decays of baryons – 13.75.Ev Hyperon-nucleon interaction – 21.80Hypernuclei – 25.80.Pw Hyperon-induced reactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The lifetime of the Λ-hyperon for the nonmesonic decay ΛN → NN has been determined by a measurement at COSY Jülich of the delayed fission of heavy hypernuclei produced in proton-Au collisions at T p = 1.9 GeV. It is found that heavy hypernuclei with mass numbers A≈ (180±5) and atomic numbers Z≈ (74±2) fission with a lifetime τΛ = 130±13 (stat.) ±15 (syst.) ps. This value together with the results obtained for other heavy hypernuclei in previous investigations indicates --on the confidence level of 0.9-- a violation of the phenomenological ΔI = 1/2 rule for the ΛN → NN transitions as known from the weak mesonic decays of kaons and hyperons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500170089
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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