21. I can calculate cross sections and decay rates . 22. The speed at which they can be sampled depends upon the decay rate of the phosphor used. 23. The radioactive decay rate of particles varies greatly, dependent upon the nuclear properties of a particular isotope. 24. A calculation of the ? emission decay rate is quite different from a calculation of ? decay. 25. Their decay rates may be different. 26. The principle of operation is based on the measurement of a decay rate rather than an absolute absorbance. 27. CPT symmetry requires, for instance, the equality of mass, and equality of decay rates between matter and antimatter. 28. The branching ratio for each mode is given by its decay rate divided by the full decay rate. 29. The branching ratio for each mode is given by its decay rate divided by the full decay rate . 30. Thus there are further maximal bounds on values of the couplings from maximal bounds on proton decay rate .
