Theoretical physicists often assert that at the extremely high energies thought to have existed in the first moments of the universe, the W particle (which is known to have a mass several hundred times that of the proton) would behave, mass-wise, similarly to the (massless) photon. Explain this apparently contradictory statement.
Answer to relevant QuestionsSuccessful unification of the electromagnetic force with the weak force led physicists to what surprising conclusion about the proton? Describe how you might experimentally detect this prediction. Determine the Q value of the following reaction: Fill in the missing blank: (a) 21H + 21 H ( 32 He + _____, (b) 21 H + 31 H ( _____+ in. (c) Find the energy released in each. The expressions for the Q values associated with both β– and β+ decay are given in Exercises 20 and 23. Assume that the daughter’s atomic mass MD is the same in both processes. (a) Use the β– expression to show ...(a) Using Table 30.3, estimate the average distance that a τ- particle would travel in the laboratory if it were traveling at 0.95c. (b) What would its kinetic energy be?
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