Summary of Weak Decays, CKM and CP Violation Session Penguins

In our subgroup, we focused on penguin physics from various different angles. Our discussions included: (1) A method to extract one of the angles of the unitarity triangle $\phi_2$; (2) Methods to extract $\phi_3$ from $B\to K\pi$ decays; (3) Effects of non-minimal SUSY on B and K decays; (4) Understnding large branching ratios for $B\to \eta'+K(K^*)$ decays; (5) New calculation for hadronic matrix elements which are needed to compute $\epsilon'/\epsilon$.