Physics
Scientific paper
Jun 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980phrvl..44.1481f&link_type=abstract
Physical Review Letters, vol. 44, June 9, 1980, p. 1481-1483. Research supported by the U.S. Department of Energy and NSF.
Physics
11
Heavy Nuclei, Muons, Neutrinos, Radiative Lifetime, Radioactive Decay, Relic Radiation, Cosmic Rays, Particle Mass, Terrestrial Radiation
Scientific paper
Consideration is given to limits on the possible properties of very massive particles (mass greater than 100 GeV). Unstable massive particles are expected to be evident to large, deep underground detectors as relic neutrinos (from the decay of short-lived heavy particles), terran neutrinos (from the decay of longer-lived terrestrial heavy particles) and endogenous muons (from the direct decay of heavy particles in rock near the detector). Decay particle fluxes are calculated as functions of particle mass, lifetime and mean concentration in the universe, and stringent bounds on heavy-particle properties are obtained by comparison of these expressions with experiments. It is pointed out that experiments under preparation for the detection of proton decay will offer a new sensitivity to unstable heavy particles. The expected properties of stable particles in the range 100 GeV-10 TeV are also indicated.
Frampton Paul H.
Glashow Sheldon L.
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