:P R at? 3%» s new : 35'? Q. . f
i as t We
'The energies MeV), spins and parities of the ground and rst four
i excited states of 233% are as follows: 0.0 t*; 0.57 3; 0.90 ii; 1.63 173+;
'- 2.33 3. Discuss the sheli model description of these s
Ph 406 Problem Set 10
Due May 7, 1993
1. The elastic scattering reactions e e and e e can only take place via Z 0
exchange. Estimate the total cross sections for these reaction at high energies.
Recall that the piece of the gauge-covariant derivative rele
Ph 406 Problem Set 9
Due April 26, 1993
The spin-1 vector mesons can be taken to have quark content: 0 = (uu dd)/ 2, 0 =
(uu + dd)/ 2, = ss, J/ = cc, and = b.
1. The decays V e+ e proceed via a single intermediate photon, where V is a vector
Ph 406 Final Exam
1:30-4:30 p.m., May 21, 1992
Do not begin the exam until told to do so.
The exam consists of 4 problems, each worth 10 points.
Do all work you wish graded in the exam booklets provided.
The exam is clo
Ph 406 Problem Set 7
Due April 2, 1993
1. Helicity of the Neutrino. (Phys. Rev. 109 (1958) 1015; see also p. 1423 in
Alpha-, Beta-, and Gamma-Ray Spectroscopy, ed. by K. Siegbahn.)
Suppose a spin-0 nucleus A decays via electron capture to a spin-1 excited