Production of light particles by very strong and slowly varying magnetic fields
نویسندگان
چکیده
منابع مشابه
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15 صفحه اولVery Slowly Varying Functions
A real-valued function f of a real variable is said to be (p-slowly varying ((p-s .v.) if limn_ . rp (x) [ f (x + a) f (x)] = 0 for each a. It is said to be uniformly 9-slowly varying (u . (P-s .v .) if limn-. . sup, e r rp(x) ; f (x-a) f (x)I =0 for every bounded interval I. It is supposed throughout that rp is positive and increasing . It is proved that if w increases rapidly enough, then eve...
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This paper is a sequel to both Ash, Erd1⁄2os and Rubel [AER], on very slowly varying functions, and [BOst1], on foundations of regular variation. We show that generalizations of the Ash-Erd1⁄2os-Rubel approach imposing growth restrictions on the function h, rather than regularity conditions such as measurability or the Baire property lead naturally to the main result of regular variation, th...
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The production probability of an e− − e+ pair in the presence of a strong, uniform and slowly varying magnetic field is calculated by taking into account the presence of a background gravitational field. The curvature of the spacetime metric induced by the gravitational field not only changes the transition probabilities calculated in the Minkowski spacetime but also primes transitions that are...
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The Schwinger mechanism is a non-perturbative process by which an infinite number of zero frequency photons can produce an electron-positron pair. For example a constant electric field larger than O(1011V/cm) will decay into electron-positron pairs, according to the Schwinger pair production probability formula [1]. In this paper we consider the pseudoscalar-two-photon coupling. We find that th...
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ژورنال
عنوان ژورنال: Brazilian Journal of Physics
سال: 2007
ISSN: 0103-9733
DOI: 10.1590/s0103-97332007000500019