Karlsruhe 2011 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 108: Niederenergie-Neutrinophysik/Suche nach dunkler Materie V

T 108.9: Vortrag

Freitag, 1. April 2011, 16:05–16:20, 30.95: 121

Studies of the neutrino detection efficiency for the Double Chooz experiment — Franz Beißel, Sebastian Lucht, Stefan Roth, •Stefan Schoppmann, Achim Stahl, Anselm Stüken, and Christopher Wiebusch — RWTH Aachen University

The Double Chooz experiment is a reactor neutrino disappearance experiment, which aims for the measurement of the still uncertain neutrino mixing angle θ₁₃. It consists of two identical detectors filled with liquid scintillator which are located at different distances to the reactor cores. The far detector is currently being commissioned. Physics data taking is aimed to start in spring 2011.

The signature of a neutrino interaction in the detector is the delayed coincidence of a neutron and a positron signal which are created by inverse beta decay. In this contribution we present simulation studies on the development of an initial algorithm for the selection of neutrino candidates from the data stream. Of particular interest is the utilization of the event classification provided by the trigger system and the evaluation of its efficiency. The simulations are done with a full simulation of the detector response and include various backgrounds. The aim is to use this algorithm during the early phase of the physics commissioning of Double Chooz for the verification of the detector performance.