Germanium Detector Array: Difference between revisions

Revision as of 06:46, 21 January 2015

Revision as of 14:41, 19 February 2016

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The [[Germanium|GERmanium]] Detector Array ('''GERDA''') experiment is searching for [[neutrinoless double beta decay]](0vββ) in Ge-76 at the underground [[Laboratori Nazionali del Gran Sasso]] (LNGS). [[Neutrinoless beta decay]] is expected to be a very rare process if it occurs. The collaboration predicts less than one event each year per kilogram of material, appearing as a narrow spike around the 0vββ Q-value(Q_ββ = 2039 keV) in the observed energy spectrum. This means b[[Radiation protection|ackground shielding]] is required to detect any rare decays. The LNGS facility has 1400 meters of rock [[overburden]], equivalent to 3000 meters of water shielding, reducing [[Cosmic ray|cosmic radiation]] [[Background radiation|background]].