1. Location summary

2. Run 2008 CC NC Received 102 20 Connected 92 16 Located 69 9
Last Update: 5:17:04 PM
opera.xv_event_statistics
TITLE CC NC
Run 2007
Received 2
Run 2008
103 20
Connected 93 16
Located 70 10
Dead Material 7
Passing/Edge
Decay Search 67 8
Run 2009
151 31
145 25
114 3 1 63 9
Poor
Run 2010 13 12
opera.vw_bricks_to_register
ID_EVENTBRICK
RESULT_STATUS
CS_CAND_OK_DEVELOP
BACK_TO_DETECTOR
opera.vw_csbrick_connection
ID_EVENTBRICK
RUNYEAR
RESULT_STATUS
2008
NO_COSMIC_RAYS_DEVELOP
2009
BLACK_CS_DEVELOP
CS_CAND_OK_DEVELOP
opera.vw_csbrick_conncheck
ID_EVENTBRICK
RUNYEAR
RESULT_STATUS
2008
BLACK_CS_DEVELOP
2009
CS_CAND_OK_DEVELOP
opera.vw_trackfollow_bricks
ID_EVENTBRICK
RUNYEAR
2009
opera.vw_trackfollow_check
ID_EVENTBRICK
RUNYEAR
2008
2009
2010
opera.vw_totalscannable_bricks
ID_EVENTBRICK
RUNYEAR
2008
2009
2010
opera.vw_totalscanned_bricks
Run 2008 CC NC
Received
102 20
Connected 92 16
Located 69 9
Dead Material 7
Passing/Edge
Decay Search
Run 2008 CC NC
Connection
Received
90%
80%
Location
68%
45%
Connected
75%
56%
Next brick 0%
3 “second bricks” received but not yet analized
opera.vw_unconnected_bricks

3. Run 2009 CC NC Received 151 31 Connected 145 25 Located 114 16
Dead Material 3 1
Passing/Edge 10 2
Decay Search 63 9
Poor
Run 2010 13 12
Run 2009 CC NC
Connection
Received
96%
81%
Location
75%
52%
Connected
79%
64%
Next brick 7% 8%
Run CC NC
Connection
Received
96%
82%
Location
77%
54%
Connected
80%
67%
Next brick 6% 7%
Location procedure attempted on all bricks – no “waiting” brick

4. 2008 – Comparison

5. Total Multiplicity CC Multiplicity NC Multiplicity
Run Sample: 67 ev
Run 2009
Sample: 53 ev
Run 2008 Sample: 78 ev

6. IP (mm), all 1ry tracks IP (mm), muons
Run
All: 195 tks Muons: 46 tks
Run 2009
All: 153 tks Muons: 38 tks
Run 2008 All: 243 tks Muons: 58 tks

7. Track Angle all 1ry tracks Track Angle (mm), muons
Run
All: 215 tks Muons: 61 tks
Run 2009
All: 165 tks Muons: 49 tks
Run 2008 All: 255 tks Muons: 67 tks

8. Interesting Event

9. Brick – event
Topology: kink between plate 6 and 7
Hadron interaction product search scan (tanq < 1) done around kink point, no track found
7-parent FL = 1464 mm
1-daughter IP = 68 mm p = 1.01 GeV/c Dq = 46 mrad p = 44 MeV/c In-track DS, R=8.1 5
2-m
9-g attached to 1ry vtx 6 3 10
4 – extra tk pointing to 2ry vtx 8

10. Brick – event
Kink topology confirmed by GdL
Extra-track not well understood: might be/not be correlated to the 2ry vertex (random alignment of 3 refreshing residuals, or low-p outcome of re-interaction of a neutral product)
pb estimate from MCS: 1.01 [0.831.29] GeV/c
p estimate from MCS: 1.02 GeV/c(m), 1.02 GeV/c(p), 1.11 GeV/c(K)
p estimate from range (12 bricks): 0.98 GeV/c(m), 1.05 GeV/c(p), 1.23 GeV/c(K)
Probability for a hadron to traverse 12 bricks without interacting: 2.1%
Analysis of end-range track needed to discriminate particle type
Extraction of last CS requested on Jul 17th

11. Exchanged Brick

12. Brick – Event
Charm found in Bari
(Many thanks to Alessandra and Marilisa for information exchange and comparison)

13. Candidate found on CS : 4 Connected to brick : 3 Track Follow
Track Follow

14. BARI* MUON SALERNO 1 2 3 4 5 6 1ry Vertex, 4 prongs
X = 65698, Y = 68382, Z =-31525
2ry Vertex, 2 prongs
X = 65717, Y = 68643, Z =
Decay Length: mm
* From scanning meeting (Feb. 2010)
Decay Length : mm

15. Primary Vertex Bari Salerno Linear Fit: -0.1957 -0.2778Sx Sy
Momentum IP
Track 1
0.058
0.225
1.5
1.3
0.227 *
3.2
Track 2
-0.120
0.084
6.7
10.3
-0.117
0.087
9.2
Track 3
-0.115
-0.238
3.8
2.5
-0.118
-0.230
1.3*
1.2
Track 4
-0.164
-0.221
2.8
-0.165
-0.213
5.25
7.1
* Scan Forth not performed
Linear Fit:
Kalman Fit:
TK3:Muon for Bari
TK4:Muon for Salerno (found on CS)
Secondary Vertex
Bari
Salerno Sx Sy
Momentum IP
Track 5
-0.069
0.076
0.5
2.5
-0.054
0.08
1.4
Track 6
0.014
0.086
7.2
0.011
0.071
4.3

16. Scanning speed: status and outlook

17. Weekly location rate
2010
Nov-Dec 2009, 1 expert 1 non-expert
Jan-Mar 2010, 1 expert (DS only) 1 non-expert
DB lost (Apr 27)
May-Jul 2010, 2 experts 1 non-expert
2009
Aug 2009
Aug 2010
Week
Bricks

18. In Salerno, 1 expert shifter + 1 non-expert can locate >10 events / week (sustained)
Current situation: 2 expert shifters + 1 non-expert (training)
Outlook Sept- Dec 30, 2010: 2 expert shifters + 2 non-expert
Outlook Dec 30-Mar 2011: 3 expert shifters + 1 non-expert
Including summer and winter vacations (6 weeks total), working at our sustainable rate (with half manpower), we have the potential to process more bricks than we usually get (10 bks/week51 weeks = 510 bricks/year...)
Spare time is used for system upgrades, tests and manpower-intensive activities such as hadron interaction search – but the scanning power in Salerno is far from being saturated

19. Spares

20. Linear Fit: -0.1957 -0.2778 Kalman Fit: -0.1415 -0.1854
TK3:Muon for Bari
TK4:Muon for Salerno (found on CS)
Linear Fit:
Kalman Fit:

21. TK #1 : Muon for Salerno
TK #2: Muon for Bari