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Showing papers by "Ephraim Fischbach published in 1991"


Journal ArticleDOI
TL;DR: In this article, the speed of light was compared to the limiting velocity of massive particles, and it was shown that this limit does not depend on assumptions concerning the motion of the laboratory with respect to a preferred frame.
Abstract: We describe a method by which existing precision measurements may be used to provide a new laboratory test of the special theory of relativity In this test the speed of light ${\mathit{c}}_{\mathrm{em}}$ is compared to the limiting velocity of massive particles, ${\mathit{c}}_{\mathit{m}}$ Although it is conventionally assumed that ${\mathit{c}}_{\mathrm{em}}$=${\mathit{c}}_{\mathit{m}}$ieqc, this need not be the case in phenomenological alternatives to special relativity Our results impose limits on the quantity (1-${\mathit{c}}_{\mathit{m}}$/${\mathit{c}}_{\mathrm{em}}$) Unlike null tests of special relativity, this limit does not depend on assumptions concerning the motion of the laboratory with respect to a preferred frame

32 citations


Journal ArticleDOI
TL;DR: A cikk ismerteti Eotvos kiserletet, Dicke kritikai eszreveteleit, az Otodik Erő hipoteziset es az EOTvos-kiserlet mai hatasat
Abstract: A cikk ismerteti Eotvos kiserletet, Dicke kritikai eszreveteleit, az Otodik Erő hipoteziset es az Eotvos-kiserlet mai hatasat

18 citations


Journal ArticleDOI
TL;DR: From the consistency of existing data, limits on the differences between hypothetically distinct quantization constants for different elementary particles may be viewed as precise tests of fundamental conservation laws, including the conservation of linear momentum and energy.
Abstract: We discuss the possibility that different realms of physics are described by distinct quantization constants. From the consistency of existing data, we infer limits on the differences between hypothetically distinct quantization constants for different elementary particles. Since the existence of multiple Planck constants implies violations of space-time symmetries, these limits may be viewed as precise tests of fundamental conservation laws, including the conservation of linear momentum and energy.

16 citations


Journal ArticleDOI
TL;DR: It is shown that in certain classes of theories the spatial variation of the non-Newtonian potential would be dominantly an exponential rather than a Yukawa potential, and generalized forms of the exponential potential can arise naturally from simple mass spectra.
Abstract: We show that in certain classes of theories the spatial variation of the non-Newtonian potential would be dominantly an exponential rather than a Yukawa potential, and we compare the phenomenological interpretation of the existing data in the exponential and Yukawa models. We also show that generalized forms of the exponential potential can arise naturally from simple mass spectra. Although such models cannot reconcile all of the existing data on non-Newtonian gravity, they have novel properties that can be directly studied experimentally.

11 citations


Journal ArticleDOI
TL;DR: In this article, a rigorous relativistic formalism for dealing with the interaction of high-energy neutral kaons with an external field was developed, which was then used to describe for the first time the behavior of the K{degree} {minus} {bar K}{degree} system at high energy in the presence of a spatially-varying vector potential.

8 citations