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- Fermi National Accelerator LaboratoryUS84 papers
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21 papers · 1 filter
SUSY dark matter and lepton flavor violation
Vernon Barger, Danny Marfatia, Azar Mustafayev +1
We study lepton flavor-violating (LFV) processes within a supersymmetric type-I seesaw framework with flavor-blind universal boundary conditions, properly accounting for the effect…
Generic dark matter signature for gamma-ray telescopes
V. Barger, Y. Gao, W. -Y. Keung +1
We describe a characteristic signature of dark matter (DM) annihilation or decay into gamma-rays. We show that if the total angular momentum of the initial DM particle(s) vanishes,…
Dark matter and pulsar signals for Fermi LAT, PAMELA, ATIC, HESS and WMAP data
V. Barger, Y. Gao, W. -Y. Keung +2
We analyze new diffuse gamma-ray data from the Fermi Gamma-ray Space Telescope, which do not confirm an excess in the EGRET data at galactic mid-latitudes, in combination with meas…
Signatures of Pseudoscalar Photon Mixing in CMB Radiation
Nishant Agarwal, Pankaj Jain, Douglas W. McKay +1
We model the effect of photon and ultra-light pseudoscalar mixing on the propagation of electromagnetic radiation through the extragalactic medium. The medium is modelled as a larg…
Neutrino sector impacts SUSY dark matter
Vernon Barger, Danny Marfatia, Azar Mustafayev
Motivated by the fact that neutrinos are massive, we study the effect of neutrino Yukawa couplings on neutralino dark matter observables within the framework of a supersymmetric se…
Eikonal contributions to ultra high energy neutrino-nucleon cross sections in low scale gravity models
E. M. Sessolo, D. W. McKay
We calculate low scale gravity effects on the cross section for neutrino-nucleon scattering at center of mass energies up to the Greisen-Zatsepin-Kuzmin (GZK) scale, in the eikonal…