In the pion, an up and an anti-down quark yield a particle of only 139.6 MeV of mass energy, while in the rho vector meson the same combination of quarks has a mass of 770 MeV! The masses of C and S are from Serway, and the T and B masses are from descriptions of the experiments in which they were discovered.
Independence Day 2018 is a federal holiday and falls on the fourth of July. The day of the week that the holiday falls on, changes each year. If July 4 is a Saturday, it is observed on Friday, July 3.
Join us July 1 to July 7 to kick off summer and celebrate Independence Day. We will have our 4th of July festivities on Tuesday, July 4. Start the day off with our annual triathlon. Bring your red, white & blue props, make a tie-dye shirt with the Rec. Staff, grab some balloons and get ready to march in our parade.