# Superparticle mass window from leptogenesis and decaying gravitino dark matter

@article{Buchmuller2008SuperparticleMW, title={Superparticle mass window from leptogenesis and decaying gravitino dark matter}, author={Wilfried Buchmuller and Motoi Endo and Tetsuo Shindou}, journal={Journal of High Energy Physics}, year={2008}, volume={2008}, pages={079-079} }

Gravitino dark matter, together with thermal leptogenesis, implies an upper bound on the masses of superparticles. In the case of broken R-parity the constraints from primordial nucleosynthesis are naturally satisfied and decaying gravitinos lead to characteristic signatures in high energy cosmic rays. We analyse the implications for supergravity models with universal boundary conditions at the grand unification scale. Together with low-energy observables one obtains a window of superparticle…

## 23 Citations

### Probing Gravitino Dark Matter with PAMELA and Fermi

- Physics
- 2009

We analyze the cosmic-ray signatures of decaying gravitino dark matter in a model independent way based on an operator analysis. Thermal leptogenesis and universal boundary conditions at the GUT…

### Probing gravitino dark matter with PAMELA and Fermi

- Physics
- 2009

We analyse the cosmic-ray signatures of decaying gravitino dark matter in a model-independent way based on an operator analysis. Thermal leptogenesis and universal boundary conditions at the GUT…

### Long-lived higgsinos as probes of gravitino dark matter at the LHC

- PhysicsJournal of High Energy Physics
- 2013

A bstractWe investigate the LHC sensitivity to supersymmetric models with light higgsinos, small R-parity breaking and gravitino dark matter. The limits on decaying gravitino dark matter from…

### R-parity violating right-handed neutrino in gravitino dark matter scenario

- Physics
- 2009

A decay of the gravitino dark matter is an attractive candidate to explain the current excesses of the PAMELA/ATIC cosmic-ray data. However, R-parity violations are required to be very tiny in…

### Antiproton limits on decaying gravitino dark matter

- Physics
- 2013

We derive 95 % CL lower limits on the lifetime of decaying dark matter in the channels Zν, Wℓ and hν using measurements of the cosmic-ray antiproton flux by the PAMELA experiment. Performing a scan…

### Leptogenesis and Dark Matter

- Physics
- 2018

We brie y review the work carried out in project C3 of the SFB 676. The main topics are Quantum Leptogenesis, the treatment of thermal leptogenesis with nonequilibrium eld theory, and gravitino dark…

### Gravitinos and hidden supersymmetry at the LHC

- Physics
- 2012

We investigate phenomenological consequences of locally supersymmetric extensions of the Standard Model consistent with primordial nucleosynthesis, leptogenesis and dark matter constraints. An…

### Gravitino phenomenology and cosmological implications of supergravity

- Physics
- 2010

Gravitino production in the primordial Universe is investigated into details. After briefly reviewing inflation, supersymmetry and supergravity, we first study the scattering of massive W bosons in…

### Broken R-parity in the sky and at the LHC

- Physics
- 2010

Supersymmetric extensions of the Standard Model with small R-parity and lepton number violating couplings are naturally consistent with primordial nucleosynthesis, thermal leptogenesis and gravitino…

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