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951.
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954.
Klaus D. Rothe 《Nuclear Physics B》1976,104(2):344-364
We use momentum space techniques to sum the complete class of outer rainbow graphs contributing to the IPI two-point function in λφ2?2 theory. The results are exact to all orders of λ and for all values of q2. By working in momentum space, we avoid the ambiguities which arose in the configuration space treatment of earlier work. It is shown that the renormalized integral equation can be reduced to a Volterra equation with kernel. The solution is found to agree with the asymptotic results of our configuration space treatment. Properties of the solution such as uniqueness, cut-off dependence, relation to perturbation theory and anomalous ultraviolet behaviour are discussed. 相似文献
955.
956.
Klaus C. Lück Franz J. Müller 《Journal of Quantitative Spectroscopy & Radiative Transfer》1977,17(3):403-409
The development of tunable cw dye lasers with an extremely narrow bandwidth of <20 MHz and high stability in frequency and amplitude, which operate in the wavelength region from 2800 to 3150 Å by frequency doubling, has made possible the quantitative proof of the presence of OH with high-resolution laser-absorption spectroscopy.A method is presented, which allows the simultaneous measurement of temperature and OH-concentration by tuning across a suitable rotational line. 相似文献
957.
Klaus Brodersen A. v. Wilpert E. Bankmann und H. Zimmer 《Fresenius' Journal of Analytical Chemistry》1959,171(4):278-281
Ohne Zusammenfassung 相似文献
958.
959.
Dipl.-Phys. Klaus Mühlbauer 《Zeitschrift für Physik A Hadrons and Nuclei》1970,230(1):18-36
Using a source of Eu 2 151 O3 the (n, γ) spectrum of Eu152 and Eu153 was investigated by means of the Risø bent crystal spectrometer. A total of 57 transitions were fitted into a level scheme of Eu153. The rotational bands of the Nilsson states 5/2+ [413], 5/2? [532], and 3/2+ [411] were found up to the spin values 15/2, 13/2, and 11/2 respectively. The 13/2 member of the 3/2+ [411] band is suggested at 716.15 keV. The interpretation of these levels is confirmed by the comparison of the experimental branching ratios with theoretical predictions and by considerations concerning the spin dependent population of these levels. 相似文献
960.
The -specific heat anomalies of ferromagnetic fcc Ni–Co and Ni–Fe alloys were investigated near the Curie temperatures. The magnetic contribution to the specific heat was found to be logarithmically divergent [c
M=log|T/T
c–1|
A
] above the Curie temperature. The exponentA was composition dependent. Entropy and energy values associated with magnetic transions were determined experimentally and compared with theoretical predictions of the Heisenberg and Ising localized electron models obtained from series expansion calculations. 相似文献