Design studies for the double Chooz trigger [Elektronische Ressource] / vorgelegt von Andi Sebastian Cucoanes

DESIGNSTUDIESFORTHEDOUBLECHOOZTRIGGERVon der Fakult at fur Mathematik, Informatik undNaturwissenschaften der RWTH Aachen University zur Erlangungdes akademischen Grades eines Doktors der Naturwissenschaftengenehmigte Dissertationvorgelegt vonMaster-Physiker Andi Sebastian Cucoanesaus C^ ampina (Rum anien)Berichter:Universit atsprofessor Dr. rer. nat. Christopher WiebuschUniversit Dr. rer. nat. Tobias LachenmaierTag der mundlic hen Prufung: 24. Juli 2009Diese Dissertation ist auf den Internetseiten der Hochschulbibliothek online verfugbar.Design Studies for the Double Chooz TriggerAndi Sebastian CucoanesIII. Physikalisches Institut B - Rheinisch-Westfalische Technische HochschuleAachenThe main characteristic of the neutrino mixing e ect is assumed to be the cou-pling between the avor and the mass eigenstates. Three mixing angles ( ; ; )12 23 13are describing the magnitude of this e ect. Still unknown, is considered very13small, based on the measurement done by the CHOOZ experiment. Although the-oretical models cannot explain the big di erence between and the other two13mixing angles, the true value is likely not far from the present bound. Never-13theless, a non-zero value of allows to experimentally access fundamental physics13such as CP violation in the leptonic sector.In the near future, the experiments which aim to explore the region allowed byCHOOZ, are based on two complementary approaches.