Statistics – Applications
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..39.3549r&link_type=abstract
Physical Review D (Particles and Fields), Volume 39, Issue 12, 15 June 1989, pp.3549-3556
Statistics
Applications
45
Gamma-Ray Sources, Gamma-Ray Bursts, Applications Of Electroweak Models To Specific Processes, Supersymmetric Partners Of Known Particles
Scientific paper
We present estimates for the rates of the processes χχ-->γγ and χχ-->Vγ, where χ is a heavy-neutral-fermion candidate for galactic cold dark matter and V is a vector quarkonium state J/ψ(3097) or Υ(9460). A discrepancy with a previous estimate of the rate of the photino pair annihilation process γ~γ~-->γγ is uncovered and its origin discussed. We explore the possibility that some of the processes considered may be astrophysically significant sources of monochromatic γ-ray lines, in the energy range of a few to a few tens of GeV, for which theoretical estimates of the background γ-ray flux are unfortunately subject to large uncertainties.
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