arXiv subjects

A. A. Moshkin

Publications and source records attributed to A. A. Moshkin.

3 recordsLinked to original sources

arXiv2000

Direct CP Violation in Nonleptonic Kaon Decays by an Effective Chiral Lagrangian Approach at O(p^6)

A self-consistent analysis of K->2pi and K->3pi decays within a unique framework of chiral dynamics applied to the QCD-corrected weak nonleptonic quark lagrangian has been performed. The results on K->2pi amplitudes at O(p^6), including the value for epsilon'/epsilon, are compared with the experiment to fix phenomenological B-factors for mesonic matrix elements of nonpenguin and penguin four-quark operators. The dependence of B-factors on different theoretical uncertainties and experimental errors of various input parameters is investigated. Finally, we present our estimates at O(p^6) for the CP-asymmetry of linear slope parameters in the K(+-)->3pi Dalitz plot.

hep-ph↗

arXiv1999

Phenomenological analysis of epsilon'/epsilon within an effective chiral lagrangian approach at O(p^6)

We have combined a new systematic calculation of mesonic matrix elements at O(p^6) from an effective chiral lagrangian approach with Wilson coefficients taken from paper by G.Buchalla et al. Rev.Mod.Phys. 68 (1996) 1125, derived in the framework of perturbative QCD, and restricted partly by experimental data. We derive complete expressions for K-->2pi amplitudes and compare the results for epsilon'/epsilon with experiment.

hep-ph↗

arXiv1997

Results on K --> 2pi decays at O(p^6) and epsilon'/epsilon from an effective chiral lagrangian approach

We have combined a new systematic calculation of mesonic matrix elements at O(p^6) from an effective chiral lagrangian approach using Wilson coefficients taken from [G.Buchalla, A.J.Buras, M.E.Lautenbacher, Rev.Mod.Phys. 68 (1996) 1125], derived in the framework of perturbative QCD, and restricted partly by experimental data. We derive complete expressions for K --> 2pi amplitudes and give new estimates for epsilon'/epsilon.

hep-ph↗