1mass noun Sweets; confectionery. as modifier âa candy barâ. count noun âpink and yellow candiesâ. âUnlike refined sugars found in candy and desserts, these simple sugars bring energy in a nutritious way.â. âSimple sugars such as candy and sodas will give you a quick energy high and then drop you flat in mood and strength.â. âI answer through a mouthful of chocolate candies.â.
Positrons are the same in the sense that they don't penetrate far into the skin, but when they collide with a particle in your body, gamma rays are generated by matter-antimatter annihilation. And gamma rays are very bad for you, indeed, as they have both high energy and can easily pass through your tissues.
The annihilation (or decay) of an electron-positron pair into a single photon cannot occur in free space because momentum and energy cannot both be conserved in this process. The reverse reaction is also impossible for this reason, except in the presence of another particle that can carry away the excess momentum.he energy is given off in the form of the aforementioned gamma rays. Each of the gamma rays has an energy of 0.511 MeV. Since the positron and electron are both briefly at rest during this annihilation, the system has no momentum during that moment. This is the reason that two gamma rays are created.