New physics from ultrahigh energy cosmic rays
ACTA PHYS POL B 35:1 (2004) 351-364
Abstract:
Observations of cosmic rays with energies above similar to 4 x 10(10) GeV have inspired several speculative suggestions concerning their origin. The crucial question is whether or not the spectrum exhibits the expected 'GZK cutoff' at this energy-concerning which there are presently contradictory results. If there is indeed a cutoff, then the sources are cosmologically distant and rather exotic in nature. If there is no cutoff then new physics is required."Forbidden" decays of hybrid mesons to πρ can be large -: art. no. 094015
PHYSICAL REVIEW D 70:9 (2004) ARTN 094015
A ’Baedecker’ for the dark matter annihilation signal
Phys.Rev. D69 (2004) 123501-123501
Does dark energy really exist?
PHYSICS WORLD 17:7 (2004) 15-15
Extra Dimensions
Phys.Lett.B 592 (2004) 1-1064