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  • 11
    Electronic Resource
    Electronic Resource
    Nuclear fusion in excited hydrogen molecules (1990)
    Springer
    The European physical journal 337 (1990), S. 207-210 
    Details
    ISSN: 1434-601X
    Keywords: 21.90.+F
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We evaluate the nuclear fusion rates in the excited vibrational states of molecules of hydrogen isotopes. The ground state fusion rate is increased by about eight orders of magnitude but even in the most favorable situation it is out of any possible experimental test. We discuss the effects due to the nuclear potential in different hyperfine states, and the improvements attainable using coherent states and a solid phase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294293
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  • 12
    Electronic Resource
    Electronic Resource
    Photonuclear reactions and dispersion relations (1985)
    Springer
    The European physical journal 320 (1985), S. 675-682 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study the photonuclear reaction in the intermediate region. We evaluate the real part of the forward Compton amplitude through the dispersion relation and analyze its structure. The modification of the electromagnetic polarizability of the nucleon, $$\bar \alpha$$ , in the nuclear medium is calculated. We show that it affects appreciably the behaviour of the Compton amplitude in the intermediate region, consistent with the experimental data. In the same scheme the enhancement of the photonuclear sum rule,K, is interpreted as an exchange contribution to the nucleon Compton amplitude. We find in lead a value ofK=1.6±0.2 and a quenching of about 20% of $$\bar \alpha$$ .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01411870
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  • 13
    Electronic Resource
    Electronic Resource
    The electromagnetic polarizability and the swelling of nucleons in the nucleus (1986)
    Springer
    The European physical journal 324 (1986), S. 373-379 
    Details
    ISSN: 1434-601X
    Keywords: 13.60 Hb ; 25.20.+y ; 25.30 Cg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We discuss the modifications of the e.m. polarizability and of the charge radius of a nucleon embedded in the nuclear medium. For a free nucleon these structure constants are influenced by the pion cloud. The distortion of this cloud by the nuclear environment produces an appreciable enhancement of the two constants. The implications for the deep inelasticee′ experiments is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01290920
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  • 14
    Electronic Resource
    Electronic Resource
    Green function approximation and path integral numerical methods (2000)
    Springer
    The European physical journal 10 (2000), S. 157-164 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 02.70.-c Computational techniques - 31.15.Kb Path-integral methods
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We evaluate the short time Green function by a series expansion of the exponent. The resulting expression allows the computation of the energy eigenvalues and eigenvectors of a quantum system with a very high precision. As an example, we show the comparison between the numerical results and the analytical solutions for harmonic and multi-well potentials both in one and two dimensions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530050537
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