OPERA ØStato dell esperimento ØRun 2007 ØStato CNGS e

OPERA ØStato dell’esperimento ØRun 2007 ØStato CNGS e prospettive per il run 2008 ØOPERA CF&RC ØRichieste Finanziarie Lucia Votano CSII Roma 5 Giugno 2008 1

OPERA Detector Today SM 1 BMS Veto Target (29 walls) + Target Tracker (6. 7 m)2 SM 2 Spectrometer: XPC, HPT, RPC, magnet Detector at 05/29/2008: electronics fully instrumented and tested Brick filling is in progress, 132883 bricks have already been inserted 88% target 2

Detector Filling 3

CNGS 2007 RUN CNGS integrated intensity from Sept. 24 th to Oct 20 th 2007: 8. 24 1017 20/10/07 12/10/07 Comissioning Physics 9/10/07 6. 72 1017 pot 5 9 : CNGS very stable at 1. 58 1017 pot/day Problems in ventilation control units of the proton target Nominal intensity : 4. 5 1019 pot /yr (1 yr=200 days) 5/10/07 3. 91 1017 pot 4

2007 run : Interactions in the Target 32 6 expected events in bricks 8. 24 1017 p. o. t. 38 events registered during the 2007 CNGS run : 29 CC 9 NC Brick handling, Film Processing, Scanning : first test on real neutrino interactions 5

Event Location & Data analysis Europe Japan 19 (15 CC, 4 NC) 19 (14 CC, 5 NC) Events confirmed in the CSd 18 18 Events located in the bricks 14 10 1 1 All events Interactions in TT CS-Brick mismatch 1 Analysis in progress 2 Not found 1 For 28 events out of 36, analysis is almost completed On this small sample 6 Wall Finding : > 95% Brick Finding : 80% +- 7% more data needed for a complete tuning 6

CS to brick: design accuracy in position and angle Test-beam = 22 µm = 5 mrad 7

CS to brick connection for neutrino interactions Data quality looks fine = 54 µm = 9 mrad Systematical uncertainties (gap, marks, …) dominate 8

Scan-back accuracy = 4 µm = 2 mrad 9

Vertex analysis Y NAR IMI REL P Kinematical reconstructed variables Multiplicity Impact parameter 10

Event 180400976 CC interaction / 9 prongs 11

Tra cks TX TY P Ge. V IP ( m) 1 0. 026 -0. 097 - 5. 7 kink PRELIMINARY 2 -0. 024 0. 019 >20 1. 2 mu Hadronic re-interaction 3 0. 045 0. 197 2. 3 – 0. 9 + 1. 7 Event 180400976 3. 2 4 0. 024 0. 203 4. 5 - 2. 1 + 2. 6 22. 8 5 0. 100 0. 051 4. 5 - 2. 1 + 7. 9 22. 8 6 -0. 047 0. 199 2. 5 - 1. 1 + 2. 9 7. 0 7 0. 073 0. 152 3. 0 - 1. 2 + 8. 8 7. 9 8 0. 085 0. 254 1. 6 - 0. 7 + 10. 3 4. 3 9 0. 074 0. 201 1. 8 - 0. 8 + 4. 6 6. 0 10 muon kink 0. 114 0. 010 9. 0 11 0. 132 -0. 001 18. 1 e-pair Secondary Vertex Daughter momentum = 1. 9 +0. 7 -0. 4 kink = 0. 031 rad Flight length = 5901 m (too long for ) PT = 59 Me. V ( cut for charm ≥ 250 Me. V) 12

Event 173520769 CC interaction / 4 prongs 13

Event 173520769 PRELIMINARY Tra cks TX TY IP ( m) 1 0. 012 0. 160 1. 9 2 -0. 739 0. 095 4. 7 3 -0. 033 -0. 060 6. 3 4 -0. 015 0. 065 4. 1 E 1 : ~ 510 Me. V E 2 : ~ 260 Me. V : 300 ± 20 mrad compatible with 0 2 : estimated 0 mass: 110 ± 30 Me. V 14

Event 180718369 CC interaction / 10 prongs 15

e. m. shower Momentum (Ge. V) 1 0. 005 0. 036 3. 3 1. 7+0. 5 -0. 3 2 0. 005 0. 139 1. 0 parent 3 0. 002 0. 064 6. 6 >20. 0 4 -0. 021 0. 064 7. 1 2. 1+0. 7 -0. 4 -0. 029 0. 046 2. 8 >8. 4 -0. 031 0. 064 7. 3 2. 4+0. 8 -0. 5 -0. 076 0. 068 4. 2 1. 8+1. 6 -0. 6 8 kink IP ( m) 7 First charm candidate TY 6 PRELIMINARY TX 5 Event 180718369 Trac ks -0. 089 0. 141 6. 9 2. 5+1. 4 -0. 7 9 -0. 183 0. 106 5. 4 0. 7+0. 2 -0. 1 10 -0. 297 -0. 143 19. 2 0. 7+0. 3 -0. 1 11 -0. 067 0. 008 7. 3 3. 5+3. 6 -1. 2 e. pair 12 -0. 069 0. 005 16. 8 2. 0+3. 1 -0. 8 e. pair Secondary Vertex Daughter momentum = 3. 9 +1. 7 -0. 9 kink = 0. 204 rad Flight length = 3247 m PT = 796 Me. V PTMIN = 606 Me. V (90% C. L. ) 16

2007 run: Interactions outside the Target 331 events passed the analysis cut 303 had been expected: ratio similar to the one observed in 2006 Muon vertical angle CNGS operated in the same conditions as in 2006 run Energy of the muon (RPC) 17

CNGS Electronics - underground Layout of the ventilation control electronic equipment Designated “radiation safe” areas for electronics electronic equipment 18

19

20

21

22

23

24

25

CNGS schedule - week 21 : completion of the modification work OK - week 22 : testing and commissioning OK yesterday news: delay 1 week - week 23 : test with low intensity proton beam - week 24 : no SPS beam for physic - week 25 : (16 -22 June) setting up at 2 10**13 pot per extraction -………Collecting data 26

27

2008 run : expected statistics Expected 2008 run Nominal CNGS 140 200 Super Cycle (sec. ) 33. 6 - 48 27. 6 Circulating proton 2 x 2 1013 4. 8 1013 Number of days efficiency Integrated pot Total number of interactions Tau candidate (@2. 5 10 -3 e. V 2) 55% 80% 2. 6 -2. 8 1019 4. 5 1019 ~ 2500 ~1 ~125 evts/week 28

29

Brick Preparation • CS-Analysis – x-ray markings for alignment ~ 10 mm – connection of CS-doubletts and brick – search area is scanned for track with matching angle brick (first emulsion) CS 2 x-ray machine CS 1 150 mm Blackness of spot allows to identify the side of emulsion • Brick-Alignment – x-ray markings ~ 40 m – first film to film connection – film number identifier 30

LNGS: Development Facility Line for the automated emulsion development 5 chains ready 3 fully operatives Full Rehersal before ‘ 08 run Maximum rate: ~ 50 bricks/day (16 hours) 31

32

European Scanning System • R&D on 20 cm 2/h European Scanning System completed successfully (end 2004) • 31 ESS distributed among 10 labs ( 23 ESS in 8 Italian labs ): Bari, Bern, Bologna, Lngs, Lyon, Napoli, Padova, Salerno, Roma, LNF • Integrated in a online computers network : including DB, manager , on line computation , plate changer …. . 33

34

CF&RC Consuntivo 2007 35

CF&RC 2008 36

Richieste (K€): MI Sblocco 172 sj di cui 40 a Bari sono una tasca generale Cons Sblocco 75 sj INFN CF&RC ( 79 ancora da assegnare) App Sblocco 50 sj materiale spare per microscopi Pendente richiesta 40 K€ per controller RPC 37

38

39