upsilon particle

listen to the pronunciation of upsilon particle
الإنجليزية - الإنجليزية
Any of a number of bound states of a heavy quark and its antiquark, especially that formed from a bottom quark and an anti-bottom quark
An electrically neutral meson having a mass 18,513 times that of the electron and a mean lifetime of approximately 8.0 × 10- seconds
upsilon particle
المفضلات