Aldo IanniNNN05 April 8, 20051 Status and future prospects of Gran Sasso Aldo Ianni INFN Gran Sasso Laboratory NNN05 Aussois, April 7-9.

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Presentation transcript:

Aldo IanniNNN05 April 8, Status and future prospects of Gran Sasso Aldo Ianni INFN Gran Sasso Laboratory NNN05 Aussois, April 7-9

Aldo IanniNNN05 April 8, The Gran Sasso Underground Laboratory  Proposed in 1979  Approved in 1982  Since 1989 w/ the first experiment: MACRO

Aldo IanniNNN05 April 8, Scientific achievements Rare phenomena:   w/ Heidelberg-Moscow (m ee ~0.44eV) & Cuoricino  Dark Matter w/ DAMA Neutrino oscillations:  GALLEX/GNO for solar ’s  MACRO for atmospheric ’s Cosmic rays:  unique study with EAS-TOP LVD/MACRO R&D:  Low energy(<1MeV) solar neutrinos with the Borexino prototype: a pioneer project  LAr technology  Low counting techniques Nuclear astrophysics:  with LUNA

Aldo IanniNNN05 April 8, The Gran Sasso Laboratory in the future (< )  Safety and infrastructures upgrade ( )  CNGS program: OPERA, ICARUS  Low energy solar neutrinos: Borexino  DM: LIBRA, CRESST, WARP, LXe(?)   : Cuoricino, Cuore, Gerda  Nuclear astrophysics: LUNA

Aldo IanniNNN05 April 8, Safety and Infrastructures upgrade

Aldo IanniNNN05 April 8, Upgrade of infrastructures [ ] First phase Floor waterproofing Realization of containment basins Safety measure for the drinkable water Second phase Upgrade of the ventilation system Upgrade of the cooling capability Upgrade of the electrical power

Aldo IanniNNN05 April 8, Sealing of floors Containment basin

Aldo IanniNNN05 April 8, Hall C with Borexino & OPERA

Aldo IanniNNN05 April 8, Hall C

Aldo IanniNNN05 April 8, Hall B w/ T600

Aldo IanniNNN05 April 8, Hall A with GNO being taken apart

Aldo IanniNNN05 April 8, New drain system It needs escavation in the highway tunnel (east-west tunnel stopped for 3 months) pipe for water drain

Aldo IanniNNN05 April 8, Ventilation system at present

Aldo IanniNNN05 April 8, New ventilation system Moves here

Aldo IanniNNN05 April 8, Cooling system

Aldo IanniNNN05 April 8, LNGS physics program before 2010

Aldo IanniNNN05 April 8, Existing and under way projects at the Laboratory Gerda, LVD, CRESST,Cuoricino/Cuore ICARUS BOREXINO, OPERA DAMA, WARP Genius-TF, HDMS A B C LUNA Low backg. Lab. 180,000 m 3 LXe

Aldo IanniNNN05 April 8, Physics program before 2010 Solar neutrinos: Borexino searching for 7 Be and pep Double beta decay: Cuoricino with about 40kg of TeO 2 (with 34% 130 Te) in 3yr can reach T 1/2 > 1.8x10 24 yr (90%CL) GERDA with ~20kg Ge enriched. ~1yr to confirm at 5  or reject HM Dark Matter: CRESST: upgraded to 33detectors(10kg) + neutron shielding operational by endo of 2005 LIBRA with 250kg of NaI already running (1.5yr) WARP from 2.3kg to 100kg if background problems solved CNGS: OPERA + ICARUS(T1800/T3000) SN neutrinos: LVD (~400 events for a std SN) running with 99.3% duty cycle in the last 5yrs T600 (~100), Borexino(80) Gravitational waves: 2m in deameter spherical antenna to be Installed on surface and moved later underground

Aldo IanniNNN05 April 8, T600 at Gran Sasso T600 will be in operation by fall 2006 At present coll. working on infrastructures (power supply, ventilation, heat dissipation) 2 modules for T600 in Hall B since end of 2004

Aldo IanniNNN05 April 8, OPERA Technique: Pb nuclear emulsions 1.8kton target Pb mass Determination of decay topology 5 years with 4.5x10 19 pot/year, expected ~10 events for  m 2 ~2.5x10 -5 eV ~0 background and for maximal mixing Goals:     in appearance  sub-leading  -> e

Aldo IanniNNN05 April 8, Building OPERA … Installation will take one more year July 2003 April 2005 March 2005

Aldo IanniNNN05 April 8, Low energy solar neutrinos

Aldo IanniNNN05 April 8, Low energy solar neutrinos … why? Physics and astrophysics point of view:  Test how the Sun shines. Input parameters (Z/X, opacity, …) of SSM are correct?  How much energy from CNO (1.5% from SSM)? Any other energy source?  Photon luminosity versus Neutrino luminosity  High precision neutrino flux and annual modulation determination. High precision mixing angle (  12 ) determination [mainly by meas. pp].  Test of vacuum-matter transition (energy dependence of oscillations).  New physics (neutrino magnetic moment, NSI, new vacuum osc. [Vissani,03])  CPT test by comparison with terrestrial anti-neutrino experiments

Aldo IanniNNN05 April 8, Future low energy solar neutrino experiments * ExperimentDetection channeltargetData taking Expected signal counts/year for pp(Be) BorexinoElastic Scattering100tons target mass200730cpd only Be KamLANDElastic Scattering600 target mass2007 LENSCC channel 115 In+ e ->e Sn,  20ton In-loaded scintillator cells?2190(511) MOONCC channel 100 Mo+ e ->e Tc(  3.3ton Mo foils + plastic scintillator ?240(77) XMASSElastic Scattering10ton liquid Xe?2373(1241) with 50keV thres. CLEANElastic Scattering10ton liquid Ne?2869(1518) with 50keV thres. * only mentioned those which have a stronger R&D in progress!

Aldo IanniNNN05 April 8, Borexino back at work!  Fluid handling operations back at work  First operation just completed: calibration of the CTF with a Rn source  Next important step: green light for distillation of scintillator Schedule:  major activities: distillation of PC, procurement of about 1kton, filling  new drain system has a big impact on the schedule  new drain system should be built by July this year! Hence, Borexino takes data by beginning of 2007

Aldo IanniNNN05 April 8, Summary  Borexino back at work  OPERA on schedule  T600 underground being commissioned (next step: going toward kton scale)  Cuoricino running, GERDA approved and in start-up  Dark Matter: LIBRA, CRESST, WARP TF  GNO stopped and taken apart  Sealing of floors in progress (Hall C done!)  New draining system installation, cooling and ventilation starting soon (April 18) 2006 A CRUCIAL YEAR FOR THE LNGS. Goals: lab. upgrade works over OPERA completed, T600 in operation, Borexino filled

Aldo IanniNNN05 April 8, After 2010 … ?! Space limitation underground but important physics program to be completed: 1.Borexino : ~ OPERA : ~ GERDA: starts CUORE: assembly over by ICARUS: starts 2006 with T600  Maybe after ~2013 some space free for …  No Mton detector at Gran Sasso!  Rare phenomena & solar neutrinos: going toward a measurement of pp neutrinos with a 10ton LNe Borexino-like detector?!  New ideas for -beams?