L. Larun & K. Malterud svarer:

The Decays K L → l + l − l ′ + l ′ − Revisited

The double lepton pair decay modes of the KL meson are analyzed including all contributions of order p in Chiral Perturbation Theory. The experimentally established eeee mode and the recently observed eeμμ mode are discussed in detail. Typeset using REVTEX 0 In this note we reconsider the double lepton pair decays KL → llll that were studied many years ago by Miyazaki and Takasugi [1]. The two ...

Section K-Section L

(k, l)-kernels, (k, l)-semikernels, k-Grundy functions and duality for state splittings

Line digraphs can be obtained by sequences of state splittings, a particular kind of operation widely used in symbolic dynamics [12]. Properties of line digraphs inherited from the source have been studied, for instance in [7] Harminc showed that the cardinalities of the sets of kernels and solutions (kernel’s dual definition) of a digraph and its line digraph coincide. We extend this for (k, l...

Revisiting (k , l)-step methods

Abstract. In the mid-1980s B.N. Parsons [29] and the author [10] independently had the idea to generalize linear stationary k-step methods to stationary (k, l)-step methods, which were further generalized to nonstationary and even nonlinear (k, l)-step methods. Later, conjugate-gradient-type methods that are (k, l)-step methods of a similar sort were introduced and investigated in the PhD thesi...

Exclusive B → K∗l+l− decay with polarized K∗ and new physics effects

Using the most general, model independent effective Hamiltonian, the branching ratio of the B → Kll decay, when K meson is longitudinally or transversally polarized, is presented. The dependence of the branching ratio on the new Wilson coefficients, when K meson is polarized, is studied. It is observed that the branching ratio is very sensitive to the vector and tensor type interactions, which ...