An upper bound on the Kaon B-parameter and Re(epsilon_K)

Abstract

New precise data in B physics and theoretical developments in K physics lead us to reconsider the weak K^0-\bar{K}^0 transition from a large-N_c viewpoint, N_c being the number of colors. In this framework, we infer an upper limit on \hat{B}_K and the Kaon indirect CP violation.

Comments: 11 pages, 4 figures. V2 : Minor corrections, final version accepted for publication in JHEP