Strong-interaction effects on theKL→2μdecay andKL−KSmass difference. A reply.

Abstract

The strong-interaction corrections to the matrix element of the $K_L\to 2\mu$ decay and the $K_L-K_S$ mass difference arising from gluon exchanges at short distances are considered. We discuss the controversy existing in the literature on the problem and try to elucidate our approach proposed earlier.