activity
19922026
most citedSupersymmetric Q-balls as dark matter

684 citations · 13.5k across the 217 of their papers we have counts for

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Showing 2009Show all

15 papers · 1 filter

astro-ph.HE2009★ 153 cited

Secondary photons and neutrinos from cosmic rays produced by distant blazars

Warren Essey, Oleg E. Kalashev, Alexander Kusenko +1

Secondary photons and neutrinos produced in the interactions of cosmic ray protons emitted by distant Active Galactic Nuclei (AGN) with the photon background along the line of sigh…

astro-ph.HE2009★ 84 cited

Dark Matter Search Using Chandra Observations of Willman 1, and a Spectral Feature Consistent with a Decay Line of a 5 keV Sterile Neutrino

Michael Loewenstein, Alexander Kusenko

We report the results of a search for an emission line from radiatively decaying dark matter in the Chandra X-ray Observatory spectrum of the ultra-faint dwarf spheroidal galaxy Wi…

hep-ph2009★ 72 cited

Gravitino dark matter from Q-ball decays

Ian M. Shoemaker, Alexander Kusenko

Affleck-Dine baryogenesis, accompanied by the formation and subsequent decay of Q-balls, can generate both the baryon asymmetry of the universe and dark matter in the form of gravi…

astro-ph.IM2009★ 380 cited

The Fluorescence Detector of the Pierre Auger Observatory

The Pierre Auger Collaboration, J. Abraham, P. Abreu +515

The Pierre Auger Observatory is a hybrid detector for ultra-high energy cosmic rays. It combines a surface array to measure secondary particles at ground level together with a fluo…

astro-ph.IM2009★ 6 cited

Operations of and Future Plans for the Pierre Auger Observatory

The Pierre Auger Collaboration, J. Abraham, P. Abreu +469

Technical reports on operations and features of the Pierre Auger Observatory, including ongoing and planned enhancements and the status of the future northern hemisphere portion of…

astro-ph.HE2009★ 35 cited

Astrophysical Sources of Cosmic Rays and Related Measurements with the Pierre Auger Observatory

The Pierre Auger Collaboration, J. Abraham, P. Abreu +469

Studies of the correlations of ultra-high energy cosmic ray directions with extra-Galactic objects, of general anisotropy, of photons and neutrinos, and of other astrophysical effe…

astro-ph.HE2009★ 6 cited

The Cosmic Ray Energy Spectrum and Related Measurements with the Pierre Auger Observatory

The Pierre Auger Collaboration, J. Abraham, P. Abreu +469

Studies of the cosmic ray energy spectrum at the highest energies with the Pierre Auger Observatory.

astro-ph.IM2009★ 7 cited

Calibration and Monitoring of the Pierre Auger Observatory

The Pierre Auger Collaboration, J. Abraham, P. Abreu +470

Reports on the atmospheric monitoring, calibration, and other operating systems of the Pierre Auger Observatory. Contributions to the 31st International Cosmic Ray Conference, Lodz…

astro-ph.CO2009★ 6 cited

Studies of Cosmic Ray Composition and Air Shower Structure with the Pierre Auger Observatory

The Pierre Auger Collaboration, J. Abraham, P. Abreu +470

Studies of the composition of the highest energy cosmic rays with the Pierre Auger Observatory, including examination of hadronic physics effects on the structure of extensive air…

hep-ph2009★ 381 cited

Sterile neutrinos: the dark side of the light fermions

Alexander Kusenko

The discovery of neutrino masses suggests the likely existence of gauge singlet fermions that participate in the neutrino mass generation via the seesaw mechanism. The masses of th…

hep-ph2009★ 15 cited

Neutrinos from the terrestrial passage of supersymmetric dark matter Q-balls

Alexander Kusenko, Ian M. Shoemaker

Supersymmetry implies that stable non-topological solitons, Q-balls, could form in the early universe and could make up all or part of dark matter. We show that the relic Q-balls p…

astro-ph.HE2009★ 177 cited

A new interpretation of the gamma-ray observations of active galactic nuclei

Warren Essey, Alexander Kusenko

Gamma-ray telescopes have reported some surprising observations of multi-TeV photons from distant active galactic nuclei (AGN), which show no significant attenuation due to pair pr…

astro-ph.HE2009★ 150 cited

Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory

The Pierre Auger Collaboration, J. Abraham, P. Abreu +458

From direct observations of the longitudinal development of ultra-high energy air showers performed with the Pierre Auger Observatory, upper limits of 3.8%, 2.4%, 3.5% and 11.7% (a…

astro-ph.CO2009★ 13 cited

Strong gravitational lensing probes of the particle nature of dark matter

Leonidas A. Moustakas, Kevork Abazajian, Andrew Benson +44

There is a vast menagerie of plausible candidates for the constituents of dark matter, both within and beyond extensions of the Standard Model of particle physics. Each of these ca…

astro-ph.CO2009★ 40 cited

Gravitational waves from the fragmentation of a supersymmetric condensate

Alexander Kusenko, Anupam Mazumdar, Tuomas Multamaki

We discuss the production of gravity waves from the fragmentation of a supersymmetric condensate in the early universe. Supersymmetry predicts the existence of flat directions in t…