BOLOGNA Scanning Lab INFN - Sezione di BOLOGNA Physics Dep. of Alma Mater Studiorum Università di Bologna M.Pozzato – Ankara – 09/04/02

ESS Lab 2 ESS Lab 1 corridor Bologna scanning LAB MIC2 RACK MIC1 100x MIC3 Automatic Scanning for NTD EMU Storage MIC4 PC MIC5 PC RACK

NamePosition Brunetti GiuliaPhD student Di Ferdinando DonatoINFN Research Associate Giacomelli GiorgioEmeritus Professor Giorgini MiriamResearch Associate Mandrioli GianniINFN Senior Research Associate Mauri NicolettaPhD student (INFN Research Fellow) Medinaceli EduardoResearch Fellow Patrizii LauraINFN Senior Research Associate Pozzato MichelePhD student Sioli MaximilianoAssistant Professor Sirri GabrieleINFN Research Associate Tenti MatteoPhD student NameDivision Calligola PatriziaComputing and network Degli Esposti LuigiElectronics Togo VincentGeneral Technical Service Valieri ClaudiaGeneral Technical Service Bologna INFN technical support Bologna Group

Infrastructure status HARDWARE: MIC1: high magnification obj (100x) MIC2, MIC3: currently working for scanning of OPERA events MIC4: currently working for scanning of glued emulsions MIC5: devoted to plate changer tuning (not glued emulsions) and for manual check SOFTWARE: - Computing infrastructure upgraded not to the the last release - All data taking with ScanGrid now (3 servers currently installed and working) -Local DB scheme upgraded to last one.

Bologna Event Summary Totn.g.glued Received58 (*) 4216 Scanned Connected Localized38308 (*) Received bricks are 59 but one is not taken here into account  see slide 8. Pending Scanning Analysis Manual CheckClosed TotCCNCTotCCNCTotCCNCTotCCNCTotCCNCTotCCNC Received58 (*) Scanned Connected Localized

Event: Brick: TT muon slopes: KALMAN: -0, , LINEAR: -0, , CS Prediction (not the muon) Prediction matched on plate 57 and scanback done  Passing through track TS done to look for muon candidate The track is not related to the CC event but to a rock muon  this brick should not be extracted.

Not connected (3CC without muon pred – 2 NC)

 - : TX = TY = predictions received from LNGS (2 tracks seem duplicated-tracks), not the muon and not converging Not matched  From the electronic the bricks seems the right one  rescan requested. Event: Brick: (CC)

Event Brick (CC) TT muon slopes: KALMAN: 0, , LINEAR: 0, , predictions from LNGS  None matched!!! Maybe coming from a shower? However we try to find the muon performing a TS around the point of convergence (IP ~ mm) from PL38 to PL42.  Muon candidate found passing through the volume: TX TY SCANBACK STARTED

7 predictions received from LNGS  spreaded on the “whole” surface. Matched 4 predictions: all stops in the plate of the match  ¾ search asked. Event: Brick: (NC)

Event: Brick: (NC) One prediction received from LNGS  not found. ¾ search requested and done. Previous track discarded by compton map  2 more candidates found  not matched in plate 57 – 56 – 55 – 54 Requested CS rescan

Connected not located ( 5 CC with  pred, 8 CC without  pred, 1 NC )

Event: Brick: (CC) TT muon slopes: KALMAN: -0, , LINEAR: -0, , CS doublets Prediction (with muon) Matched 10 (included the muon)  candidate The muon candidate: manual check on all the segments to be done. Volume analysis around the other stopping points to be done before requesting a new brick estraction. SB done: muon candidate exits laterally

Event: Brick:  - : TX = TY = predictions from LNGS: 2 seem to converge First attempt: one track matched  scanback started, stop PL 57. GeneralScan 3 plates (57-55)  Mu candidate found (in the display below is the black track) Stop: pl 46  TS done track isolated, shower hint. Muon candidate seen as stop track sent at LNGS: Not found. Requested new check taking into account the offset found in the unique prediction matched in the brick.

Connected and localized ( 31 CC, 7 NC )

Event Brick (CC) TT muon slopes: KALMAN: -0, , LINEAR: -0, , CS doublets Prediction path 10 is the muon( * ) ID X Y SX SY Match found on pl56 ID 7: DX: -156 µm DY: 8 µm DTX: -7 mrad DTY: 17 mrad ID 10: DX: 54 µm DY: -89 µm DTX: 4 mrad DTY: -5 mrad ID 11: DX: 172 µm DY: -197 µm DTX: -2 mrad DTY: 12 mrad ( * ) not flagged as muon in Analysis Follower

Scanback Path 10: passing through Path 11: passing through Path 7: stopPL53 TotalScan done around stopping point: track confirmed as stop: no other tracks attached. Vertexing done with path 10 – path 11: DZ = -2.4 cm (interaction in TT) IP ~ 20 m (using segments on pl1)

Event Brick (CC) TT muon slopes: KALMAN: -0, , LINEAR: -0, , CS doublets Prediction (not the muon) ID X Y SX SY Match found on pl56 (pl57 distorted) ID 2: DX: 56 µm DY: -317 µm DTX: 9 mrad DTY: 18 mrad ID 4: DX: 2 µm DY: -212 µm DTX: 9 mrad DTY: 18 mrad Scanback done  path 2: stop pl 43 Path 4: stop pl 56

TotalScan Scanback Track Vertex position: ( , , ) Vertex prob: Tracks statistics: Id Impact TX TY Nseg DZ ??? Parent found!! Scanback done on parent  Stop PL: 18  TOTAL SCAN

TotalScan Muon Vertex position: ( ) Vertex prob: Tracks statistics: Id Impact TX TY Nseg DZ muon SB Event localized Scanforth done: muon candidate sent to LNGS to CS confirmation

Overall picture Z Z yX

 - : TX = TY = (from OpBrickFinder) Reco Published in Analysis Follower: TX = TY = predictions from LNGS (none flagged as muon in Analysis) Path5_cs2: TX = TY =.022 (Is the muon candidate?) This track has been matched inside the brick, followed up to plate 42: TS done: scanback track not reconstructed  TS started again. Event: Brick: (CC)

 - : TX = TY = predictions received from LNGS both flagged as muon candidates and both matched. SB done  one passing through, the other stops on plate 26  TS done on stopping point confirm an isolated track (compatible with a QE – event as seems by electronic detector) Event: Brick: (CC) Passing through track related to another event 