40. one point, from Lecture 42, many short answers, with some symbols

(a) .2 Standard Model. What is the ``Standard Model'' of particle theory (.2)?

(b) .2 High Energy Physics. What do we mean by the phrase high energy is short distance (.1)? Short distance is early times (.1)?

(c) .3 GUTs. What do we mean by the acronym ``GUTs'' (.1)? What is the GUTs scale of size (.1)? What physics is predicted to happen at the GUTs scale (.1)?

(d) .3 Symmetry Breaking. What is meant by a force having a symmetry (.1)? What is meant by symmetry breaking (.1)? What is meant by phase transitions in the early universe (.1)?

Revised December 3, 1997.