Extensive air showers from ultrahigh-energy gluinosстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:We study the proposal that the cosmic ray primaries above the Greisen-Zatsepin-
Kuzmin (GZK) cutoff are gluino-containing hadrons ( ̃ g
-hadrons). We describe the
interaction of g-hadrons ̃
with nucleons in the framework of the Gribov-Regge ap-
proach using a modified version of the hadronic interaction model QGSJET for
the generations of Extensive Air Showers (EAS). There are two mass windows
marginally allowed for gluinos: mg ̃ <
3 GeV and 25 < mg ̃ <
35 GeV. Gluino-
containing hadrons corresponding to the ∼ second window ∼ produce ∼EAS very different
from the observed ones. Light g ̃
-hadrons corresponding to the first gluino window
produce EAS similar to those initiated by protons, and only future detectors can
marginally distinguish them. We propose a beam-dump accelerator experiment to
search for ̃
g-hadrons in this mass window. We emphasize the importance of this
experiment: it can discover (or exclude) the light gluino and its role as a cosmic ray
primary at ultra high energies.