Slide 1

Programme Advisory Committee for Nuclear Physics 29th meeting, 2223 January 2009 RECOMMENDATIONS WALTER GREINER Slide 2 Preamble The Chairperson of the PAC, W. Greiner, welcomed the PAC members, the invited experts, the ex-officio members from JINR, and presented the implementation of the recommendations taken at the previous meeting. JINR Vice-Director M. Itkis informed the PAC about the Resolution of the 104th session of the Scientific Council (September 2008), the decisions of the Committee of Plenipotentiaries (November 2008), and about the preparation of the Seven-Year Plan for the Development of JINR for 20102016. Slide 3 Recommendations on the themes and projects to be completed in 2009 and proposals of new themes. Slide 4 Investigation of Fundamental Interactions in Nuclei at Low Energies The PAC heard with great interest the report on the closing theme Investigation of Fundamental Interactions in Nuclei at Low Energies. Theme 1039 in 2006-2009 Investigation of Fundamental Interactions In Nuclei at Low Energy BAIKAL Deep UnderWater -detector EDELWEISS Dark Matter LESI Low-E Strong Int. GEMMA Neutrino Magnetic Moment G & M 2-decay NEMO-3 2-decay TGV 2-capture Slide 5 NEMO The new results on 2-decays and new upper limits on 0-decays obtained by the NEMO-3 experiment on seven different isotopes are very impressive. The next step in preparation will be the SUPER-NEMO experiment with greatly increased sensitivity. Slide 6 T 1/2 ( ) > 5.8 10 23 yr (90 % C.L.) < 0.6 1.3 eV Phases 1 + 2: Phase 1, high Rn level 7.6 kgyear Phases 1 + 2 13.3 kgyear [2.8-3.2] MeV: ( ) = 8 % Expected 8.1 BG events Observed 7 events Number of events / 40 keV Phase 2, low Rn level 5.7 kgyear Number of events / 40 keV T 1/2 ( ) > 2. 10 24 yr (90 % CL) < 0.3 0.7 eV 2009 -2010 [2.8-3.2] MeV: ( ) = 8 % Expected 3 BG events Observed 4 events [2.8-3.2] MeV: ( ) = 8 % Expected 11,1 BG events Observed 11 events NEMO3: search for 0 of 100 Mo Slide 7 GERDA The GERDA experiment in Gran Sasso underground laboratory for 0-decay in germanium detectors with enriched 76Ge isotope has made excellent progress. It will be continued with the GERDA-3 enlarged set- up Slide 8 GERDA: Search for 0 in 76Ge detectors. Start up of experiment at Gran Sasso underground laboratory in 2009. 17.9 kg 76 Ge enriched detector. Phase I (2009 2011): 17.9 kgyr T 1/2 > 3 x10 25 yr or to confirm KKGH claim ( T 1/2 = 1.2 x10 25 yr, m = 0.44 eV ) Slide 9 TGV project Double-beta decay of 106Cd isotope Slide 10 Experiment : T 1/2 (g.s. g.s.) T 1/2 1.8 x 10 20 y (95%CL) (TGV-2) T 1/2 5.8 x 10 17 y (90%CL) (F.Danevich et.al.) T 1/2 1.5 x 10 17 y (68%CL) (H.Kiel et.al.) Theory T 1/2 = 1.0 x 10 20 y (J.Suhonen) T 1/2 = 8.7 x 10 20 y (M.Hirsch) T 1/2 = 4.4 x 10 21 y (F.Simkovich) Results of one-year measurement 2EC/EC (0+0+, g.s.) decay with 10 g of 106 Cd, enriched at 75% Slide 11 GEMMA The GEMMA experiment searching for antineutrino magnetic moment with Ge detectors underneath the Kalinin Power Plant has reached an excellent new upper limit and will be continued in 20092011 with the improved GEMMA-II set-up. Slide 12 X= ( / 10 10 ) 2 ~ ~ (ONOFF) / EM DLNP Experiment GEMMA : search for the neutrino magnetic moment 1.5 kg HPGe detector at 14.5 m from the core center Kalininskaya Nuclear Power Plant (Udomlya, Tver reg.) Slide 13 13 MUNU (Bugey, 2003) < 0.9 10 10 B TEXONO (Taiwan, 2006): < 7.4 10 11 B GEMMA-1 (2006): < 5.8 10 11 B BOREXINO (2008) < 5.4 10 11 B GEMMA-1 (2008): < 3.9 10 11 B GEMMA-1 (2009): 2.5 10 11 B Slide 14 Search for Dark Matter Experiment is dedicated to the direct detection of dark matter in form of WIMPs. EDELWEISS uses high purity Germanium cryogenic detectors with simultaneous measurement of phonon and ionization signals at a temperature about 20 mK. Measurements of 2 signals provides powerful discrimination WIMP and background events. Using methods of nuclear physics for solving of astrophysics problem Status: 2006-2007 commissioning, test and calibrations 2008 EDELWEISS started to take WIMP data with ~10 kg Ge detectors, 200 kg.d data accumulated, present limit on SI coupling WIMP- nucleon