An Upgraded Analysis of $ϵ\prime /ϵ$ at the Next-to-Leading Order

Abstract

An upgraded analysis of $\text{ep}$, $x_d$ and $\text{epp}/\text{ep}$, using the latest determinations of the relevant experimental and theoretical parameters, is presented. Using the recent determination of the top quark mass, $m_t=(174\pm 17)$ GeV, our best estimate is $\text{epp}/\text{ep}=3.1\pm 2.5$, which lies in the range given by E731. We describe our determination of $\text{epp}/\text{ep}$ and make a comparison with other similar studies. A detailed discussion of the matching of the full theory to the effective Hamiltonian, written in terms of lattice operators, is also given.

Comments: LaTeX, 45 pages, 6 postscript figures