It is pointed out that the usual principle of invariance under isotopic spin rotation is not consistant with the concept of localized fields. The possibility is explored of having invariance under ...

One can evaluate the action for a gravitational field on a section of the complexified spacetime which avoids the singularities. In this manner we obtain finite, purely imaginary values for the ...

The results of I are applied to: 1, predissociation; 2, excitation of oscillations during an optical transition; 3, the case of closely approaching potential curves. The question of the cross-section ...

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Analytical experessions for the e + e − → μ + μ − cross section including all the one-loop radiative corrections in the context of the Weinberg model are presented. The systematic calculation of ...

The production of axions in the early universe is studied. Axion models which break the U(1) PQ symmetry above 10 12 GeV are found to produce an unacceptably large axion energy density.

Cambridge U. and Munich, Max Planck Inst.

Information theory provides a constructive criterion for setting up probability distributions on the basis of partial knowledge, and leads to a type of statistical inference which is called the ...

Significant production of (2030) is observed in the channel K − p → (Σ K − K + from a high statistics bubble chamber exposure at 4.2 GeV/ c . The mass and width are determined to be 2024 ± 2 MeV and ...

The Klein-Gordon equation for a scalar field of mass μ is analyzed in the geometry of a rotating black hole. It is shown that in the limit μM≪1, i.e., particle Compton wavelength much larger than the ...

The completely general one-loop scalar one-, two-, three- and four-point functions are studied. Also an integral occurring in connection with soft bremsstrahlung is considered. Formulas in terms of ...

Part of Physics and mathematics of strings: Memorial volume for Vadim Knizhnik, 509-529 ...