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Neutrino experiments No of PL participants Gallex/GNO1997 - 2001 1 Super- Kamiokande 1996 - 1-2 K2K(KEK to Kamioka) 1998 – 2005 2 Borexino1994 - 2 Icarus.

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Presentation on theme: "Neutrino experiments No of PL participants Gallex/GNO1997 - 2001 1 Super- Kamiokande 1996 - 1-2 K2K(KEK to Kamioka) 1998 – 2005 2 Borexino1994 - 2 Icarus."— Presentation transcript:

1 Neutrino experiments No of PL participants Gallex/GNO Super- Kamiokande K2K(KEK to Kamioka) 1998 – Borexino Icarus * Gerda Also considered: T2K (T2k-LAr)LOI GLACIER R&D Danuta Kiełczewska Warsaw University & A.Sołtan Institute of Nuclear Studies Experiments with involvement of PL groups: Also individual participation in Minos finally a significant PL contribution (some part-time)

2 Polish neutrino groups Senior (18) Junior(21) (incl PhD,MSc) Katowice University of Silesia USJ. Kisiel, W. Zipper 2 Kraków: Cracow University of Technology H. Kuna-Ciskal, M. Maślak Institute of Nuclear Physics IFJ A. Dąbrowska, J. W. Mietelski, 4 M. Szarska, A. Zalewska Jagellonian University UJ M. Wójcik 2 Univ. of Science and Technology AGH R. Rumian 1 Warszawa Institute for Nuclear Studies IPJ T. Kozłowski, E. Rondio, 3 J. Stepaniak, M. Szeptycka Warsaw University WaUW. Dominik, D. Kiełczewska 4 Warsaw University of TechnologyK. Zaremba 1 Wrocław Wrocław University WrUJ. Sobczyk 4 (Neutrino phenomenology)

3 PhD theses: 1) G. Żużel, Jagellonian Univ., 2002, Rn-226 as a background source in Borexino, 2) B. Beckman, University of Silesia, 2004 Neutrino properies from supernova explosion Completed: Current (9): A. AnkowskiWrocław UniversityTheory of neutrino interactions K. Graczyk as aboveas above J. Nowak as above as above J. Łagoda Warsaw University Icarus W. Półchłopek AGH Icarus P. Przewłocki IPJ Icarus, T2K-LAr S. Stach US Icarus A. Szelc IFJ Dark Matter, LAr TPC J. Zalipska IPJ K2K

4 Master theses (MSc) : G. Żużel, UJBorexino1998 U. Gołębiewska, WaU Super-Kamiokande 1998 M. Misiaszek, UJBorexino2000 J. Pasternak, WrU Pion production for a neutrino factory, 2000 J. Nowak WrUCP violation in neutrino interactions, 2001 A. Moryc, WaU/IPJSuper-Kamiokande 2001 K. Cieślak, WaU/IPJ Super-Kamiokande 2001 M. Barańska WaU/IPJ Super-Kamiokande 2001 P. Przewłocki, WaU/IPJ Super-Kamiokande 2002 D. Rytter WaU/IPJ Super-Kamiokande 2002 A. Maszczyk, UJ Borexino (SNO)2002 P. Brylski, IFJIcarus2003 P. Lipiński, UJBorexino2003 M. Kołodziej US Icarus2004 S. Stach US Icarus 2004 A. Ankowski, WrU QE neutrino interactions, 2004 A. Szelc, IFJDark Matter in LAr2004 D. Stefan, IFJ Icarus2004 Completed: 18

5 Review of experiments

6 Super-Kamiokande ~ 140 authors JAPAN USA KOREA POLAND Institutions Discovery of oscillation of atmospheric neutrinos (1998) (the most often cited high energy experimental paper in the SLAC HEP database (>2200 citations) First neutrino-graphy of the Sun Search for proton decays Search for Dark Matter (via neutralino annihilation) (Warsaw University)

7 Oscillation of atmospheric neutrinos in SK Oscillation Decay Decoherence Evidence for oscillation Oscillation parameters

8 NN Result: a = 1.95 ±.63 b = 1.03 ±.06 Expected #: 26.8 fitted #: 52 ± 17 Signal Eff: 34% Total number of tau = 155 (total expd=79) Search for tau appearance in SK Preliminary Atmospheric: Zenith angle P.P. – MSc thesis 2002 A sample enriched in tau.

9 Deficit of solar neutrinos (also with participation of PL groups) Jagellonian University Warsaw University

10 K2K - KEK to Kamioka 250 km ~ 160 authors 36 institutions (2 from Pl: Wa U, IPJ) A beam of of energy around 1 GeV Compared at near detectors and at SK.

11 Near Detectors at KEK SciBar PL contribution: Construction of SciFi Cher. light calibration Particle identification PhD student on site

12 Observation of oscillation in K2K Final result: w/o oscill. A combination of oberved: event deficit spectrum

13 A summary of the oscillation measurements: Mixing: NOT max max Future measurements: Better precision for: Sign of: appearance

14 Borexino To be filled with water at the end of 2005, and finally with scintillator in 2006 To study Be solar neutrinos. in Gran Sasso Lab. 17 Institutions incl: Jagellonian University -Selection of low radioactivity materials.

15 Nucleon stability p e + + Supernova neutrinos Solar neutrinos A modular approach : T600 + T1200 +T1200 to reach the design mass Long Baseline neutrinos Icarus LAr TPC detector and physics program P. Sala Atmospheric neutrinos

16 The ICARUS Collaboration L'Aquila, LNF, LNGS, Milano, Napoli, Padova, Pavia, Pisa, CNR Torino, Politec. Milano. ITALY: L'Aquila, LNF, LNGS, Milano, Napoli, Padova, Pavia, Pisa, CNR Torino, Politec. Milano. SWITZERLAND: ETH/Zürich. CHINA: Academia Sinica Beijing. POLAND: Univ. of Silesia Katowice, Univ. of Mining and Metallurgy Krakow, Inst. of Nucl. Phys. Krakow, Univ. of Technology Krakow, A.Soltan Inst. for Nucl. Studies Warszawa, Warsaw Univ., Wroclaw Univ. USA: UCLA Los Angeles. SPAIN: CIEMAT, Univ. of Granada. RUSSIA: Dubna, INR (Moscow) 25 institutions, 145 physicists From PL: 7 institutions, 36 physicists

17 Icarus milestones Test in Pavia (with atmospheric muons) 300 tons of LAr (5 papers in ) Dec T600 successfully transported to Gran Sasso underground laboratory Dec 22, 2004 – INFN fully approved main orders for T1200 mechanics and cryogenics A large cryogenic facility, dimensioned for the operation of the full liquid Argon mass is now under construction in the Hall B of the LNGS. ( since PL joined the collaboration in 2000 )

18 T600 analysis: π 0 mass reconstruction t 0 = 12.4 s, e = 1.65 ms E( 1 ) = 182.5±22.2 MeV E( 2 ) = 180.8±20.1 MeV Run 712 Evt 7 (Left Collection View) M = 150.6±11.8 MeV/c candidate events = 40 º = 40 º Main vertex Poland+ Pavia analysis Preliminary in agreement with expected e.m. resolution! comb. background in events with > 2 showers

19 Polish participation in Icarus Test in Pavia One of the triggers was prepared by PL groups. Shifts Data analysis: - study of the propagation of scintillation light - reconstruction of 0 events - reconstruction of muon energies - data compression Icarus in LNGS (examples) modification of the readout electronics neutrino interactions (analytical and MC) procedures for tau event selection a check of mechanical parameters for cryostats Production of anode wires for next modules

20 Anode wires for T production in Poland Present status: All the equipment has been constructed, purchased or borrowed from Pavia with many improvements as compared to the original Pavia setup for the wire production of T600. Common work of the experimental groups from Warsaw, Katowice and Cracow, in close collaboration with the Pavia group. Laboratory in Cracow (12x5.5 m 2 ) prepared for production. P. Sala

21 Funding (w/o institutes budgets) Year NATO TARI PL-I grants exchange (euros) (man-days in LNGS) Year SPUB Research (Icarus) grants PL funding (KBN) (in thousands of PL zl) From foreign sources Participation in SK/K2K has been possible thanks to constant support by University of Calif., Irvine SPUB: special projects and equipment TARI: Transnational Access to major Research Infrastructure EU PL-I: PL- Italian bilateral agreements

22 Plans for future T2K (T2K-LAr) GLACIER

23 T2K (Tokai to Kamioka) Dec.2002 : LOI submitted to J-PARC office signed by 45 physicists from Japan, 110 physicists from: Canada, China, France, Italy, Korea, Poland, Russia, Spain, Switzerland, UK and USA K. Nishikawa, Venice 2003 beam of <1GeV 0.75 MW 50 (40) GeV PS 4MW 50GeV PS x x disappearance e e appearance NC measurement CP violation proton decay

24 T2K detectors 100 ton LAr TPC: (together with other European groups and coordinated by A. Rubbia) LOI is now prepared with PL participation SK For precision measurement of: cross sections beam contamination

25 T2K Schedule Possible future upgrade: –4MW Super-J-PARC + Hyper-K (1Mt) –CP violation in lepton sector –Proton Decay SK full rebuild T2K construction physics run K2K 2009 PS commisionning Sensitivity to down to 0.006

26 R&D for the future giant LiAr detector for neutrino physics and searches of proton decays (coordinated by A.Rubbia from ETH Zurich). GLACIER A possible location of an underground laboratory: a salt rock of the Sieroszowice copper mine (details from A. Zalewska). Two-phase (liquid and gas) Ar detector Measurements by J.W.Mietelski, E.Tomankiewicz and S.Grabowska (IFJ) and J.Kisiel, J.Dorda (US): ( ) Bq/kg for 40 K ( ) Bq/kg for nuclides from the U chain ( ) Bq/kg for nuclides from the Th chain Very low radioactivity:

27 Summary With the discovery of oscillations the interest in neutrino physics has grown considerably: We have the expertise from the most successful experiments - now we are mostly involved in the most unique technique for precision measurements (Icarus) The groups (experimental and theoretical) collaborate very closely - with regular meetings/workshops in Katowice, Kraków, Warszawa or Wrocław. This is very helpful in sharing our expertise in various fields. We hope to have the resources to participate significantly in the most important neutrino experiments. We have also dreams for an underground laboratory in PL 9 institutions, 39 physicists (18 senior & 21 junior)

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