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  • 1
    ISSN: 1572-9591
    Keywords: Cold fusion ; Pd-D2O cells ; Ti-D2 systems ; barrier penetration calculations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract We have searched for cold fusion produced in an electrolytic cell with Pd cathode and Pt anode. The electrolyte was 0.1 molar LiOD in 99.8% D2O. A 2-mm rod of polycrystalline Pd and a 4-mm rod of single crystal Pd were used. No radiation was detected above background by a BF3 neutron and Ge γ-X detector. The D2 loading of the Pd was 0.8 D per Pd atom reaching saturation after 4 hours. We also attempted to duplicate the work of Scaramuzzi and co-workers on the Ti-D2 system. Both powder and pieces of Ti were used. The material was cycled several times between 1100 K and 77 K. No neutron, γ- or x-ray emission above background was observed. The results of a barrier penetration calculation for H-like atoms are presented. The high fusion rates reported for PdD x . are much larger than those expected from theoretical calculations on these systems.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 49 (1991), S. 411-415 
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In this paper, we study the role of zero point energies in light front quantized field theories using a simple scalar field model with quartic coupling. In the equal time formalism, the zero point energies are renormalized by normal ordering with respect to some vacuum state, which is varied to determine the true, interacting vacuum. On the light front, we shall see that this procedure acquires an unexpected subtlety due to the equivalence of the ultraviolet (k +→∞) and infrared (k +→0) limits of the light front momentum. In order for the divergent zero point contributions toP + andP − to cancel, we find that the product of the infrared and ultraviolet cutoffs must be a finite constant whose value is determined by the coupling constants of the theory. As an application, we determine the vacuum structure of the theory in two dimensions as a function of the quartic coupling. Finally, we discuss the implications of our result for the discretized versions of light front quantization.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 344 (1992), S. 67-71 
    ISSN: 1434-601X
    Keywords: 25.30.Hm ; 34.80.−i ; 25.70.−z
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We elucidate a mechanism for the production of photonium, a set of resonances of the e+e− system. Due to their small, possibly vanishing, elastic width, the free space formation of these states is inhibited and external fields may substantially enhance their production. We develop a model for enhanced production based upon a three body mechanism involving a positron and a correlated pair of atomic electrons. Very strong sensitivity to the electron pair correlation is obtained. Decreasing this correlation by a factor of two over a range appropriate to inner shell orbitals of highZ atoms increases the photonium production cross section by eight orders of magnitude. For fixed correlation length, a sharp peak is found in the production cross section as the incoming positron energy is varied through a region near threshold for photonium production via this three body mechanism.
    Type of Medium: Electronic Resource
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