Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Gravitino"”.
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Pseudo-goldstino to gravitino decay : an implication of multiple supersymmetry breaking
… studies the decay of a pseudo-goldstino to a gravitino plus a photon in the Minimal Supersymmetric Standard Model. The foundational premise of this decay process is that there are two independent sectors of supersymmetry breaking. We compute this main decay rate using the goldstino equivalence …
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Supersymmetry at the dawn of the LHC era
… a new two-body decay mode of a goldstini to a gravitino and a single photon that could be a striking indirect detection of dark matter if it were seen at gamma-ray telescopes such as FERMI.
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Search for Long-Lived Neutral Particles in Final States with Delayed Photon and Missing Transverse Energy from Proton-Proton Collisions Using the CMS detector.
… branching ratio of the neutralino to photon and gravitino decay channel, $\sigma_{(\PSneutralinoOne \rightarrow \gamma + \tilde{G})}\times BR$, for different lifetimes and masses is derived. Our results confirm for the first time that the CMS Electromagnetic Calorimeter provides good sensitivity …
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A Search for Sleptons with Intermediate Lifetimes in e+e- Collisions at sqrt(s)=189-209 GeV
… und zerfallen jeweils in ein Lepton und ein Gravitino. Fuer die Suche wurde die charakteristische Topologie von Spuren mit grossen Stossparametern und fehlender Energie ausgenutzt. Alle bei LEP2 erlaubten Produktionskanaele (direkte sowie indirekte Produktion ueber Paar-Erzeugung von …
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Neutrino masses and Baryogenesis via Leptogenesis in the Exceptional Supersymmetric Standard Model
… temperature would lead to the over-produced gravitinos in the universe, contrasting with the present observation. We investigate leptogenesis in the Exceptional Supersymmetric Standard Model. We find that the extra Yukawa couplings would enhance the CP asymmetries of the RH neutrino decay …