Collaboration meeting Maiori June 4 th , 2007

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Collaboration meetingMaiori

June 4th , 2007

Spokesperson reportYves Déclais

today status: Electronic Detectors Brick production and detector filling Outcome from the committees and CNGS schedule OPERA sensitivity updated

Conclusions

June 4th , 2007 Spokesperson report Yves Déclais 2

1. Electronic Detectors :

• all electronic detectors installed • commissioning completed

( except HPT/SM2 and VETO : in progress )• DAQ stabilized and the Virtual Control Room system operative• Electronic detectors Analysis Software stabilized

( except for the HPT )


HPT installation completed


VETO installation completed


2. Brick Production and Detector Filling


Detector filling in progress

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Brick Production and Detector filling schedule

Rate run start (sept 15th) run stop (nov 15th) det. completed

(+21 weeks) (+30 weeks) 150000 bricks

2 drums/day 50680 68986 sept 12th 08(2034 bricks/week) ( 372 evts)* (+70 weeks)

2.5 drums/day 58315 81202 June 20th 08(2543 bricks/ week from june 1st 07) ( 441 evts)* (+58 weeks)

3 drums/day 59334 86802 May 2nd 08(3052 bricks/week from sept 1st 07) ( 465 evts ) * (+41 weeks)

* : number of CNGS events in the bricks for 1019 pot

As discussed at the Funding agency meeting and the committees


Detector filling

2 drums/day achieved in a steadily mode for the BAM and the BMS

BUT:• lack of shifters from the collaboration !• lack of funds (and administrative bottlenecks)

+ to insure the needed upgrade for the BAM in due time+ to hire the needed manpower ( BAM & BMS) in due time


3. Outcome of the committees

• SPSC (17/04/07) :

SPSC supports a commissioning CNGS beam in 2007 (2-3 weeks) which will enable OPERA to test the experiment further. A decision on a physics run has been delayed to the June 26th SPSC meeting. The brick installation progress reported at that time will be an important piece of information for the discussion.

• LNGSC (18-19/04/07) : no feed back …


CNGS commissioning already scheduled ( Hoping horns fixing will be in time ):

• week 38 (1 CNGS cycle)• weeks 39 and 41 (3 CNGS cycles), break during week 40.


3. OPERA sensitivity revisitedfinal number of films available:

( 1 box = 36 packs (57 films), 1 brick = 57 + 2 films )

• 24 boxes including each 2030 unrefreshed films 825 bricks• 4409 boxes refreshed at Tono mine

maximum number of bricks : 154,111 ( losses are being investigated ) ~70 % of the initial target mass

• Visit (March 14-17) of the inspector (head of the administration office) from Nagoya University no feedback no funds available in Japan

• Funding Agency Meeting (March 23th) INFN-IN2P3-BMBF-CH-Be: no way for finding extra resources in Europe rely only on the proton intensity increase for sensitivity

recovery


OPERA sensitivity : nominal conditions

SK 90% CL(L/E analysis)

Opera nominal

Opera with beam upgrade and 30% bck reduction

Opera, with beam upgrade (1.5)

Opera with 30% bck reduction

90 % CL Sensitivity F&C

4 σ discovery potential


SK 90% CL(L/E analysis)

Opera nominal

Opera with 30% target mass reduction

Opera with 50%reduction

90 % CL Sensitivity F&C

OPERA sensitivity : revised conditions

4 σ discovery potential


Conclusions

Wait for the conclusions of the meeting …

Collaboration meeting Maiori June 4 th , 2007

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