Electroweak jet cascading in the decay of superheavy particlesстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:We study decays of superheavy particles X into leptons. We show that they initiate
cascades similar to QCD parton jets, if m X >
106 GeV. Electroweak (EW) cascading is
∼studied and the energy spectra of the produced leptons are calculated in the framework
of a broken SU(2) model of weak interactions. As application, important for the Z-
burst model for ultrahigh energy cosmic rays, we consider decays of superheavy particles
coupled on tree-level only to neutrinos and derive stringent limit for these decays from
the observed diffuse extragalactic γ-ray flux.