DPG Phi
Verhandlungen
Verhandlungen
DPG

Darmstadt 2016 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

HK: Fachverband Physik der Hadronen und Kerne

HK 41: Astroparticle Physics II

HK 41.1: Group Report

Wednesday, March 16, 2016, 16:30–17:00, S1/01 A02

Status and Prospects of the COBRA 0νββ Experiment — •Robert Temminghoff for the COBRA collaboration — TU Dortmund, Exp. Physik IV

COBRA is a next-generation low-background experiment aiming to search for neutrinoless double beta-decay (0νββ) based on commercially available CdZnTe semiconductor detectors operated at room temperature.

COBRA is currently in its demonstrator phase. 64 coplanar-grid (CPG) detectors with a total mass of about 400 g are in operation at the LNGS underground laboratory. To reduce the background as much as possible, COBRA relies on passive shielding, the use of radio-pure materials and pulse-shape analysis techniques.

While in principle a total of nine 0νββ candidates can be observed in CdZnTe, the main isotope of interest is 116Cd with a Q-value of 2814 keV which is well above the highest naturally occurring γ-line. A high precision measurement of the fourfold forbidden non-unique beta-decay of 113Cd is also possible with the COBRA demonstrator.

This talk will give an overview of the current status and latest results of the COBRA experiment. These include new half-life limits of several candidate isotopes and investigations on the long-term stability of CdZnTe detectors. Plans for using larger detectors in the near future will also be discussed.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2016 > Darmstadt