GERDA
The GERmanium Detector Array
for the search of neutrinoless double beta decay in Ge-76
at the Laboratori Nazionali del Gran Sasso (LNGS), Italy
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NEWS First LAr 09 Nov 09 03 Nov: Start of cryostat cooldown, photo 1 & 2 Summer 2009 Installation cryogenic infrastructure August 2009 PMT installation finished Works resumed May 05: PM rigging in water tank, lock test set up in HdM 2009 April 06 earthquake info: INGV , USGS Clean room construction started 02 Feb 09 Status Feb 4 , 9 GERDA bldg construction started 08 July 08 11.7.08: photo 1 & 2 18.7.08: photo 1 & 2 & 3 Water tank construction started 28 April 08 Status 7.5.08 & 12.6.08 Cryostat arrived 6 Mar 08 Pictures Movie |
Progress Report to the LNGS SC
November 2009
short write-up (pdf, 0.3 MB)
appendix (pdf, 9 MB)
search for earlier reports
Technical Proposal
March 2005, Version 0.1
pdf (1.8 MB)
Proposal to LNGS
(Sep 21, 2004)
pdf (3.5 MB)
Letter of Intent
Mar 16, 2004
see also: hep-ex/04040390
ps, pdf, gzipped ps
| The GERDA experiment has been proposed in 2004 as a new 76 Ge double-beta decay experiment at LNGS. The GERDA proposal foresees the installation of a facility with germanium detectors made out of isotopically enriched material. The detectors will be operated inside a liquid argon shield. The experiment is located in Hall A of LNGS and will serve a dual purpose. The setup will probe the neutrinoless double beta decay of 76 Ge with a sensitivity of T 1/2 > 1.4E26 y at 90% confidence level, corresponding to a range of effective neutrino mass < 0.09 - 0.30 eV. In addition the proposed experiment will be a pioneering low-level facility which will demonstrate the possibility of reducing backgrounds by 2-3 orders of magnitude below the current state-of-the-art. |
