Other
Scientific paper
Jun 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995phrvd..51.6504p&link_type=abstract
Physical Review D (Particles and Fields), Volume 51, Issue 11, 1 June 1995, pp.6504-6514
Other
6
Supersymmetric Partners Of Known Particles, Gravitational Radiation Detectors, Mass Spectrometers, And Other Instrumentation And Techniques, Cosmology
Scientific paper
Very light gluinos (constituent mass <0.7 GeV) could be absolutely stable. After discussing that such an assumption is not in contradiction with existing experimental results, I study the phenomenology of light primordial gluinos in order to set limits on their abundance and to suggest new search strategies. The nuclear physics of hadronic gluino states and the fate of such states after their production in the big bang is studied. Depending on whether they bind to nuclei, relative concentrations of ``anomalous isotopes'' in the range of 10-10 to 10-18 or a ``gluino atmosphere'' around the Earth with a density at the surface of the Earth above about one particle/cm3 are predicted. Techniques to search for these particles are proposed, based on accelerator mass spectroscopy, radiative capture on nuclei, annihilation in underground detectors, and a novel class of active cryogenic experiments. While it is quite possible that these particles have not been discovered until now, they are shown to be within the reach of present measuring sensitivities.
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