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56 papers · 2 filters
Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
Josef Pradler, Frank Daniel Steffen
Considering gravitino dark matter scenarios, we study constraints on the reheating temperature of inflation. We present the gauge-invariant result for the thermally produced gravit…
Higher-Order Corrected Higgs Bosons in FeynHiggs 2.5
T. Hahn, S. Heinemeyer, W. Hollik +3
Large higher-order corrections enter the Higgs boson sector of the MSSM via Higgs-boson self-energies. Their effects have to be taken into account for the correct treatment of loop…
Testing the MSSM with the Mass of the W Boson
S. Heinemeyer, W. Hollik, D. Stockinger +2
We review the currently most accurate evaluation of the W boson mass, M_W, in the Minimal Supersymmetric Standard Model (MSSM). It consists of a full one-loop calculation, includin…
Astrophysical Axion Bounds
Georg G. Raffelt
Axion emission by hot and dense plasmas is a new energy-loss channel for stars. Observational consequences include a modification of the solar sound-speed profile, an increase of t…
Quantum Zeno effect and the impact of flavor in leptogenesis
S. Blanchet, P. Di Bari, G. G. Raffelt
In thermal leptogenesis, the cosmic matter-antimatter asymmetry is produced by CP violation in the decays N --> l + Φof heavy right-handed Majorana neutrinos N into ordinary lepton…
On Symmetric Lepton Mixing Matrices
Kathrin A. Hochmuth, Werner Rodejohann
Contrary to the quark mixing matrix, the lepton mixing matrix could be symmetric. We study the phenomenological consequences of this possibility. In particular, we find that symmet…