MAJORANA

The MAJORANA project (styled Majorana) is an international effort to search for neutrinoless double-beta (0νββ) decay in 76Ge. The project builds upon the work of previous experiments, notably those performed by the Heidelberg–Moscow and IGEX collaborations, which used high-purity germanium (HPGe) detectors to study neutrinoless double-beta decay.

The first stage of the project is the Majorana Demonstrator (MJD), designed to demonstrate the technique and evaluate a ton-scale experiment.

Cryostats housing up to 40 kg of natural and enriched germanium detectors are being deployed in low-background vacuum cryostats at the Sanford Underground Laboratory, 1,480 m below ground in Lead, South Dakota. Following the Demonstrator, the collaboration intends to merge with the GERDA collaboration to build a much larger experiment called LEGEND.

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