HW #5 (129A), due Nov 15, 4pm
1. Reproduce the curve for the data from CPLEAR measurement of the
asymmetry in K0-K0oscillation in Phys. Lett. B 444, 38 (1998), http:
//www.elsevier.com/IVP/03702693/444/38/. You can assume CP.
2. Verify that the ratio of Γ(π−→µ−¯νµ) and Γ(π−→e−¯νe) can be under-
stood with the universality using the predicted ratio
Γ(π−→e−¯νe)
Γ(π−→µ−¯νµ)= me
mµ!2(1 −m2
e/m2
µ)2
(1 −m2
µ/m2
π)2.(1)
3. Show that δLis given by 2<e() to the leading order in .