88 research outputs found
Charge Radii of Hyperons
The momentum projected SU(3) Chiral Color Dielectric Model (CCDM) is employed
to calculate the charge root mean square radii and charge distributions of
hyperons. We compare our result with Skyrme, MIT bag and Cloudy Bag model
results. The charge distribution of in CCDM is similar to that of
Skyrme Model prediction.Comment: 11 pages, LaTeX, 3 figures upon reques
Some possible sources of IceCube TeV-PeV neutrino events
The IceCube Collaboration has observed 37 neutrino events in the energy range
PeV and the sources of these neutrinos are
unknown. Here we have shown that positions of 12 high energy blazars and the
position of the FR-I galaxy Centaurus A, coincide within the error circles of
ten IceCube events, the later being in the error circle of the highest energy
event so far observed by IceCube. Two of the above blazars are simultaneously
within the error circles of the Telescope Array hotspot and one IceCube event.
We found that the blazar H2356-309 is within the error circles of three IceCube
events. We propose that photohadronic interaction of the Fermi accelerated high
energy protons with the synchrotron/SSC background photons in the nuclear
region of these high energy blazars and AGN are probably responsible for some
of the observed IceCube events.Comment: 14 pages, 3 figure, references adde
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