Neutralino spectrum in top-down models of UHECR
@article{Ibarra2002NeutralinoSI, title={Neutralino spectrum in top-down models of UHECR}, author={Alejandro Ibarra and Ram{\'o}n Toldr{\`a}}, journal={Journal of High Energy Physics}, year={2002}, volume={2002}, pages={006-006} }
We calculate the cosmic ray spectrum of ultra high energy neutralinos that one should expect provided that the observed ultra high energy cosmic rays are produced by the decay of superheavy particles X, MX > 1012 GeV, in supersymmetric models. Our calculation uses an extended DGLAP formalism. Forthcoming cosmic ray observatories should be able to detect these neutralinos.
4 Citations
Particle physics explanations for ultra-high energy cosmic ray events
- Physics
- 2003
The origin of cosmic ray events withE ≳ 1011 GeV remains mysterious. In this talk I briefly summarize several proposed particle physics explanations: a breakdown of Lorentz invariance, the ‘Z-burst’…
SUSY resonances from UHE neutralinos in neutrino telescopes and in the sky
- Physics
- 2005
In the Top-down scenarios, the decay of super-heavy particles (m ∼ 10 12−16 GeV), situated in dark-matter halos not very far from our Galaxy, can explain the ultra-high-energy (UHE) cosmic-ray…
Relic neutrino masses and the highest energy cosmic rays
- Physics
- 2002
We consider the possibility that a large fraction of the ultrahigh energy cosmic rays are decay products of Z bosons which were produced in the scattering of ultrahigh energy cosmic neutrinos on…
Superheavy dark matter and ANITA’s anomalous events
- PhysicsPhysical Review D
- 2019
The ANITA experiment, which is designed to detect ultra-high energy neutrinos, has reported the observation of two anomalous events, directed at angles of $27^{\circ}$ and $35^{\circ}$ with respect…
Super-heavy X particle decay and Ultra-High Energy Cosmic Rays
- Physics
- 2003
In this thesis, I describe in great detail the physics of the decay of any Super-Heavy X particle (with masses up to the grand unification scale ~ 10^16 GeV and possibly beyond), and the computer…
A review of indirect searches for particle dark matter
- Physics
- 2016
The indirect detection of dark matter annihilation and decay using observations of photons, charged cosmic rays and neutrinos offers a promising means of identifying the particle nature of this…
Fragmentation functions in SUSY QCD and UHECR spectra produced in top - down models
- Physics
- 2004
We present results from two different methods for the calculation of hadron spectra in QCD and SUSY QCD with large primary energies √ s up to 10 16 GeV. The two methods considered are a Monte Carlo…