Abstract
We study photonic, neutrino and charged particle signatures from slow decays of gravitino dark matter in supersymmetric theories where R-parity is explicitly broken by trilinear operators. Photons and (anti-)fermions from loop and tree-level processes give rise to spectra with distinct features, which, if observed, can give crucial input on the possible mass of the gravitino and the magnitude and flavour structure of R-violating operators. Within this framework, we make detailed comparisons of the theoretical predictions to the recent experimental data from PAMELA, ATIC and Fermi LAT.
Highlights
What is Particle Physics? In order to understand the value of a work like this thesis, it is important to understand the role of Particle Physics in modern science and we have to answer the question above.The theoretical foundation of Particle Physics can be traced back to the theory of special relativity as well as quantum mechanics
Since we are here concerned with mass terms for charged fermions11 we only look at the Dirac mass terms for the moment
Many of the ground-breaking discoveries have been achieved by unifying seemingly different phenomena, Newton unified the motion of the planets and the physics of falling apples in his law of gravity, Faraday and Maxwell unified electricity with magnetism to get electromagnetism, the elements of the periodic table were unified by the theory of the atom, Gell-Mann unified the zoo of mesons and baryons by the theory of the quarks, electromagnetism and the weak interaction were unified into the electroweak theory
Summary
What is Particle Physics? In order to understand the value of a work like this thesis, it is important to understand the role of Particle Physics in modern science and we have to answer the question above. This was the first time some mathematical laws were presented that were supposed to be universally valid and applicable to (more or less) all kinds of phenomena. One of the most promising paths towards a deeper understanding of the universe is offered by supersymmetry It can resolve the hierarchy problem, improve on the unification of the forces and it provides excellent dark matter candidates. General properties of supersymmetric theories and searches at the LHC are discussed before we dive into the exploration of three-body neutralino decays through R-parity violating interactions. The resulting theory plays a crucial role in particle physics, as a matter of fact, the very existence of particles can be seen as a consequence of the quantization of the underlying matter fields
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