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Cooperation between physicists of JINR and ITALY

100th Session of the JINR Scientific Council – Dubna, 27 March 2006. Cooperation between physicists of JINR and ITALY. P. Spillantini – INFN and University, Florence, Italy. at JINR (33 year later). (1969). The post-war dream (1946). Self-shunted streamer chamber

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Cooperation between physicists of JINR and ITALY

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  1. 100th Session of the JINR Scientific Council – Dubna, 27 March 2006 Cooperation between physicists of JINR and ITALY P. Spillantini – INFN and University, Florence, Italy

  2. at JINR (33 year later)

  3. (1969)

  4. The post-war dream (1946)....

  5. Self-shunted streamer chamber at LNP (Synchrocyclotron) at JINR (’70-’80) and at LEAR in CERN (’80-’90)

  6. antip-Ne (’83) (m(nm ) < 2.2 MeV)

  7. Magnetic hybrid Spectrometer (MIS) at Serpukhov (Bologna, Milano, JINR) Among main results new radially excitated status of the pion: mass= 1240±50 MeV = 360±35 MeV mass= 1770±30 MeV =310±50 MeV (’77-’90)

  8. Collaboration with the Bogoliubov Theoretical Physics Laboratory - Participation to workshops, schools, meetings organized by JINR - Participation of JINR physicists to activities organized by Italian institutions - fellowships, grants, visists of JINR physicists in Italy

  9. NA48/2 experiment at CERN SPS NA48/2

  10. х 10-4 35 30 KTeV 25 NA31 20 15 10 NA48 E731 5 0 1993 1993 1999 2001 2002 2003 ExperimentsNA48, NA48/1, NA48/2 (SPS@CERN) CP-violating parameter in K0 2p decays LKr cryostat – first ISTC - CERN Re(e’/e) = (14.7  2.2)  10-4 + 23 t of Krypton -Russian Industry for CERN experiment NewNA48/2 results on direct CP-violating charge asymmetry in K±3 slopes Cusp Effect “Charged” mode K±3± Agc =(1.7 ± 2.9)10-4 K ± -> π±π0π0 First ObservationKS 0e +e – KS 0mm KS 0γγ “Neutral” mode K±00± Ag0 = (1.8 ± 2.6)10-4 M(π0π0), GeV/c2 (a0-a2)m(π+) = 0.264 ± 0.015

  11. INFN branches Involved AL BA BO CA CS CT FE FI GE IAEA LE LNF LNL LNS MI NA PD PG PI PV RM1 RM2 RM3 SA TO TS UD Experiments at CERN with participation of INFN and JINR LHC ALICE 11 branches INFN and JINR ATLAS 15 branches INFN and JINR CMS 13 branches INFN and JINR PS NTOF 7 branches INFN and JINR DIRAC 2 branches INFN and JINR HARP 9 branches INFN and JINR SPS CNGS 7 branches INFN and JINR NA48 5 branches INFN and JINR DIMUONS 3 branches INFN and JINR IONS/HYP. 5 branches INFN and JINR COMPASS 3 branches INFN and JINR + LEP (DELPHI)

  12. Experiments at other laboratories with participation of INFN and JINR • - DESY • - FERMILAB • - BNL

  13. THE WORLD BEST TOP MASS MEASUREMENT The JINR/CDF Team of J.Budagov, G.Chlachidze, V.Glagolev, F.Prokoshyn, A.Sissakian, I.Suslov together with G.Bellettini (INFN) and G.Velev(FNAL) contributed strongly to the M(top) measurement in p p -> t t +… : World Best : MTOP= 173.5 +3.7/-3.6 (stat.) +/- 1.3 (syst.) “Lepton + jets” mode A New Precise: MTOP= 169.8 + 9.2/-9.3 (stat.) +/- 3.8 (syst.) “Dilepton” mode B A B E1-2005-131 E1-2005-129

  14. Collaboration at Gran Sasso undermountain laboratories: - Borexino - Opera

  15. BOREXINO: detector • Main Goal: sub-MeV neutrinos detection (solar-Be7) • Target mass = 300/100tons organic scintillator • PC + PPO (1.5g/l) • Detection by EScareful background subtraction + high level of radiopurity required 13.7m 18m

  16. BOREXINO: subsystems • Scintillator purification systems: • Water extraction • Vacuum distillation • Silicagel adsorption detector Storage tanks: 300tons of PC CTF + DI Water plant

  17. Dubna team (LPP) did the following: Dubna group of JINR has performed the following jobs in the frame of identifying common tasks and collaborating teams from both sides. • - testing of VME electronics for the experiment, • - tuning flash electronics and analysis • - participated in the PMT finishing, the mounting and cleaning • - participation in production of the analog electronic modules for the experiment • - proposed suggestion for upgrading Borexino prototype to be able to study solar pp-neutrino. • - calibration big size of PMT in monitor and muon system (more than 2700PMT) • - complete DAQ production and test of the program complex • - Dubna physicists suggested and made the analysis of the data of CTF-detector, which gives a new physical results

  18. Future plan • Expected fill operations in 2006 that will bring the Borexino detector to the data taking stage : • Data taking with water -3-4 monthes • Start filling scintillanting liquid and than • Start data taking

  19. Collaboration "Ion sources for accelerator injection" of INFN-LNS (Catania) – IPPLM (Warsaw) – IP (Praha) – JINR (Dubna). The Collaboration was based on the coupling of a LIS and an ECR ion source.

  20. SERSE ion source Beam line FIG 1 – A photo of the SERSE source

  21. Fig. 2 – The ECRIS area at INFN-LNS.

  22. For the next future: - Continuation of bilateral and multilateral collaboration in Theoretical Physics • Continuation of common expt’s at the JINR accelerators • Continuation of common activities in international expt’s at CERN + other laboratories - Participation of JINR to underground experimens at LNGS - Participation to space expt’s TUS and NUCLEON envisaged - Participation to the SAD project now discussed - Continuation of common development of intense ion sources - Common course on accelerator physics envisaged

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