A Comprehensive Scan for Heterotic SU(5) GUT models
Journal of High Energy Physics Springer Nature 2014:1 (2014) 47
A note on the magnitude of the flux superpotential
JOURNAL OF HIGH ENERGY PHYSICS (2014) ARTN 027
Soft X-ray Excess in the Coma Cluster from a Cosmic Axion Background
(2013)
IceCube search for dark matter annihilation in nearby galaxies and galaxy clusters
Physical Review D - Particles, Fields, Gravitation and Cosmology 88:12 (2013)
Abstract:
We present the results of a first search for self-annihilating dark matter in nearby galaxies and galaxy clusters using a sample of high-energy neutrinos acquired in 339.8 days of live time during 2009/10 with the IceCube neutrino observatory in its 59-string configuration. The targets of interest include the Virgo and Coma galaxy clusters, the Andromeda galaxy, and several dwarf galaxies. We obtain upper limits on the cross section as a function of the weakly interacting massive particle mass between 300 GeV and 100 TeV for the annihilation into bb̄, W+W-, τ+τ -, μ+μ-, and νν̄. A limit derived for the Virgo cluster, when assuming a large effect from subhalos, challenges the weakly interacting massive particle interpretation of a recently observed GeV positron excess in cosmic rays. © 2013 American Physical Society.An Abundance of K3 Fibrations from Polyhedra with Interchangeable Parts
Communications in Mathematical Physics Springer Science and Business Media LLC 324:3 (2013) 937-959