/ Phenomenology-HEP


Tau lepton decays and peripheral processes in the framework of the NJL model


Kuraev, E.A. (Dubna, JINR) ; Volkov, M. K. (Dubna, JINR)

Year: 2013
Page No: 139-154
Pages: 16
Year: 2013

Abstract: The known results about unitarity violation in QED are revised. Taking into account the peripheral processes in high energy ions collisions with production of arbitrary number of pairs of charged leptons and pions, we confirm the known result about violation of unitarity in frames of QED. Namely the total cross section of production of an arbitrary number of pairs of charged particles grow more rapidly than any power of logarithm of the center-of-mass energy. Contribution from production of a single neutral meson (scalar and pseudo-scalar) is discussed. An interpretation of this fact is expected to have the similar base as the QED problem — the absence of the total cross section in scattering of a charged particle on the Coulomb centrum. The relevant conditions cannot be realized in the Nature. Explicit expressions for production of a finite number of pairs cross sections are presented.

Web-Page: http://inspirehep.net/record/1269594/files/p139.pdf

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