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21 papers · 2 filters
The PAMELA and ATIC Excesses From a Nearby Clump of Neutralino Dark Matter
Dan Hooper, Albert Stebbins, Kathryn M. Zurek
In this letter, we suggest that a nearby clump of 600-1000 GeV neutralinos may be responsible for the excesses recently observed in the cosmic ray positron and electron spectra by…
The Baryogenesis Window in the MSSM
Marcela Carena, Germano Nardini, Mariano Quiros +1
Electroweak baryogenesis provides an attractive explanation of the origin of the matter-antimatter asymmetry that relies on physics at the weak scale and thus it is testable at pre…
M2 signatures in psi(2S) radiative decays
Jonathan L. Rosner
The sensitivity of observables in radiative decays psi(2S) -> gamma chi_{1,2} -> gamma gamma J/psi to quadrupole (M2) admixtures in the dominant electric dipole (E1) transitions is…
Constraining Light Bosons with Radiative Decays
David McKeen
Light bosons can be found in large classes of theories beyond the Standard Model. These light bosons may not be ruled out by current experiments and, indeed, may even provide an ex…
Light Stop Searches at the LHC in Events with One Hard Photon or Jet and Missing Energy
M. Carena, A. Freitas, C. E. M. Wagner
Low energy supersymmetric models provide a solution to the hierarchy problem and also have the necessary ingredients to solve two of the most outstanding issues in cosmology: the o…
Neutralino Dark Matter as the Source of the WMAP Haze
Gabriel Caceres, Dan Hooper
Previously, it has been argued that the anomalous emission from the region around the Galactic Center observed by WMAP, known as the ``WMAP Haze'', may be the synchrotron emission…