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  • 1
    Electronic Resource
    Electronic Resource
    The multi-disciplinary role of ‘pion factories’ (1977)
    [s.l.] : Nature Publishing Group
    Nature 270 (1977), S. 667-671 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The multi-disciplinary role of intermediate energy proton accelerators in pure and applied nuclear physics is discussed with particular reference to the experimental programmes at LAMPF (Los Alamos Meson Physics Facility) and SIN (Swiss Institute for Nuclear Research, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/270667a0
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  • 2
    Electronic Resource
    Electronic Resource
    High-energy physics and nuclear structure (1977)
    [s.l.] : Nature Publishing Group
    Nature 269 (1977), S. 375-376 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A conference on high-energy physics and nuclear structure was held in Zurich on 29 August-2 September and organised by the Swiss Institute for Nuclear Research. This was the seventh in an international series of conferences held every two years. The theme of this conference series is the use ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/269375a0
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  • 3
    Electronic Resource
    Electronic Resource
    Evidence for the Possible Existence of a Superheavy Element with Atomic Number 112 (1971)
    [s.l.] : Nature Publishing Group
    Nature 229 (1971), S. 464-467 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Evidence is presented for the possible existence of a superheavy element produced by secondary reactions in a tungsten target bombarded by 24 GeV ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/229464a0
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  • 4
    Electronic Resource
    Electronic Resource
    Making muonium in vacuum (1982)
    [s.l.] : Nature Publishing Group
    Nature 295 (1982), S. 457-457 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MUONIUM is the name given to the simple atomic state consisting of a positively charged muon and an electron. For atomic and chemical purposes it is aptly described as a light isotope of hydrogen with only about one-ninth the hydrogen mass. However the properties of its 'nucleus' make muonium both ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/295457a0
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  • 5
    Electronic Resource
    Electronic Resource
    Nuclear shapes and sizes (1977)
    [s.l.] : Nature Publishing Group
    Nature 270 (1977), S. 135-136 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Nuclear Sizes and Structure. By R. C. Barrett and Daphne F. Jackson. (Clarendon: Oxford, 1977.) Pp. 566. £17.50. IN his classic paper on the scattering of alpha particles at large angles, Rutherford wrote: "Considering the evidence as a whole, it seems simplest to suppose that the atom ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/270135a0
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  • 6
    Electronic Resource
    Electronic Resource
    Antiproton-proton annihilation at rest into two-body final states (1993)
    Springer
    The European physical journal 58 (1993), S. 175-189 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report measurements of branching ratios for production of a series of two meson final states in $$\bar p$$ p annihilations at rest in liquid hydrogen. We find: $$\begin{gathered} BR(\bar pp \to \pi ^ + \pi ^ - ) = (3.07 \pm 0.13) \cdot 10^{ - 3} \hfill \\ BR(\bar pp \to K^ + K^ - ) = (0.99 \pm 0.05) \cdot 10^{ - 3} \hfill \\ BR(\bar pp \to \pi ^0 \pi ^0 ) = (6.93 \pm 0.43) \cdot 10^{ - 4} \hfill \\ BR(\bar pp \to \pi ^0 \eta ) = (2.12 \pm 0.12) \cdot 10^{ - 4} \hfill \\ BR(\bar pp \to \pi ^0 \omega ) = (5.73 \pm 0.47) \cdot 10^{ - 3} \hfill \\ BR(\bar pp \to \pi ^0 \eta ') = (1.23 \pm 0.13) \cdot 10^{ - 4} \hfill \\ BR(\bar pp \to \eta \eta ) = (1.64 \pm 0.10) \cdot 10^{ - 4} \hfill \\ BR(\bar pp \to \eta \omega ) = (1.51 \pm 0.12) \cdot 10^{ - 2} \hfill \\ BR(\bar pp \to \eta \eta ') = (2.16 \pm 0.25) \cdot 10^{ - 4} \hfill \\ BR(\bar pp \to \omega \omega ) = (3.32 \pm 0.34) \cdot 10^{ - 2} \hfill \\ BR(\bar pp \to \omega \eta ') = (0.78 \pm 0.08) \cdot 10^{ - 2} \hfill \\ \end{gathered}$$ These are the first measurements of the channels ηη′ and ωη′ and in almost all the other channels are more precise than previous results. We also obtain, in a more precise fashion, the following ratios of branching ratios:K + K −/π+π−=0.323±0.013, π0η′/π0η=0.548±0.056, ηη′/ηη=0.31±0.15, ωη′/ωη=0.515±0.040, π0η/π0π0=0.303±0.010, ηη/π0π0=0.232±0.011 and π0ω/ηω=0.377±0.12. The measurements are made for different η and η′ decays, and we thus obtain Γη→3π 0/Γη→γγ=0.841±0.034, and $$\Gamma _{\eta ' \to \gamma \gamma } /\Gamma _{\eta ' \to \pi ^0 \pi ^0 \eta } = 0.091 \pm 0.009$$ .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01560336
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  • 7
    Electronic Resource
    Electronic Resource
    Absorption semigroups and dirichlet boundary conditions (1993)
    Springer
    Mathematische Annalen 295 (1993), S. 427-448 
    Details
    ISSN: 1432-1807
    Keywords: 47D06 ; 35K05
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01444895
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  • 8
    Electronic Resource
    Electronic Resource
    Asymptotic stability of Schrödinger semigroups: path integral methods (1992)
    Springer
    Mathematische Annalen 292 (1992), S. 457-492 
    Details
    ISSN: 1432-1807
    Keywords: 35J10
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01444631
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  • 9
    Electronic Resource
    Electronic Resource
    Unbounded derivations of commutativeC*-algebras (1978)
    Springer
    Communications in mathematical physics 61 (1978), S. 261-266 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract It is shown that an unbounded *-derivation δ of a unital commutativeC*-algebraA is quasi well-behaved if and only if there is a dense open subsetU of the spectrum ofA such that, for anyf in the domain of δ, δ(f) vanishes at any point ofU wheref attains its norm. An example is given to show that even if δ is closed it need not be quasi well-behaved. This answers negatively a question posed by Sakai for arbitraryC*-algebras. It is also shown that there are no-zero closed derivations onA if the spectrum ofA contains a dense open totally disconnected subset.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01940768
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  • 10
    Electronic Resource
    Electronic Resource
    Exotic atoms: Antiprotons tickle nuclei (1986)
    [s.l.] : Nature Publishing Group
    Nature 323 (1986), S. 487-487 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WITH a few exceptions, atomic physics (concerning the orbitals of particles about the nucleus) and nuclear physics (concerning nuclear excitations) rarely meet. But in the experiment of W. Kanert et al. (Phys. Rev. Lett. 56, 2368; 1986) they have clearly met head on, with the X-ray transitions of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/323487a0
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