Geodesic
Cherenkov radiation of tachyons
Teoretičeskaâ i matematičeskaâ fizika, Tome 47 (1981) no. 3, pp. 395-406 Cet article a éte moissonné depuis la source Math-Net.Ru

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It is shown that in the general case the Cherenkov radiation of a taehyon cannot be axisymmetric with respect to the tachyon velocity $\mathbf{v}$. From this it is concluded that that the tachyon has a vectorial nature. The electric dipole is considered as the vector which characterizes the tachyon. Expressions are obtained for the spectrum of the Cherenkov radiation of a tachyon with allowance for the asymmetry for the case of a charged taehyon without dipole moment and for a neutral tachyon dipole oriented arbitrarily relative to $\mathbf{v}$. It is shown that the integrated characteristics of the Cherenkov radiation of tachyons of both types is the same, which indicates that the “vectoriality” of tachyons is universal. A new integral of the motion, peculiar to taehyons, is found. An explanation is given for the negative results of attempts to detect the Cherenkov radiation of tachyons. 
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     author = {M. I. Faingol'd},
     title = {Cherenkov radiation of tachyons},
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}
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M. I. Faingol'd. Cherenkov radiation of tachyons. Teoretičeskaâ i matematičeskaâ fizika, Tome 47 (1981) no. 3, pp. 395-406. http://geodesic.mathdoc.fr/item/TMF_1981_47_3_a10/

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