The Cherenkov effect A charged particle traveling in a dielectric medium with n>1 radiates Cherenkov radiation if its velocity is larger than the phase velocity of light v>c/n or Î² > 1/n (threshold) The emission is due to an asymmetric polarization of the medium in front and at the rear of the particle, giving rise to a varying electric dipole momentum.
cyclo-. 1. Combining forms relating to a circle or cycle; or denoting an association with the ciliary body. 2. In chemistry, a combining form indicating a continuous molecule, without end, or the formation of such a structure between two parts of a molecule.
âEXO is a music group conformed by three Sub-unities: âEXO-Kâ promoting in Korea, âEXO-Mâ Promoting in China (Mandarin) and âEXO-Lâ Promoting worldwide the Love for the above two. EXO-L is the Global Official Fanclub, short for EXO-LOVE. In alphabetical order, L is between K and M. EXO-L is All EXO Fans who support EXO between EXO-K and EXO-M and also EXO-L means the fanclub slogan 'WE ARE ONE'. EXO and Fan are ONE.â.