Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Scanning Report from Salerno Brick scanning overview Event gallery.

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Presentation transcript:

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Scanning Report from Salerno Brick scanning overview Event gallery General statistics Conclusions

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Brick scanning summary NCCC Bricks delivered1262 Scanning started1261 CS-brick connected11*60 Vertex found + SF + Feedback745 Passing-through1**2 Side edge-out11 Vertex in dead material02 Under study24 Pending (waiting for 3/4 or TT connection)17 Not started yet01 * Brick 5969 is a NC with black CS. 1 track found, but passes through the brick. ** Brick has a secondary interaction of a NC event; parent track followed to plate 1

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Event gallery

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Event gallery Event Brick (fog 14grs/1000 m 3 )

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Event gallery Event Brick (fog 14grs/1000 m 3 ) Hint for shower in the CS candidates Human-assisted TotalScan, plates 57 22: 1 cm 2 around shower axis, reconstruct every 10 plates, check for shower/vertex

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Event gallery Event Brick (fog 14grs/1000 m 3 ) Vertex found between plates 35 and 36 XYXZ

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Event gallery Event Brick (fog 14grs/1000 m 3 ) Vertex found between plates 35 and 36 Tilted XY Two showers found ( is likely)

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Event gallery Event Brick – NC, passing through with secondary

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Event gallery Event Brick – NC, passing through with secondary 3-prong vertex with primary Another passing-through The two passing- through tracks do not converge (seen on XZ) YZ XZ

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Event gallery Event Brick

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Event gallery Event Brick XY YZ Close-up Track stopping in the volume downstream of the vertex, not seen on CS

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Event gallery Event Brick Tilted view Track stopping in the volume downstream of the vertex, not seen on CS IP = 80.5 m Z = 1900 m CS check needed

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 General Statistics

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 General Statistics: Vertex features Charged multiplicity of CC primary verticesCharged multiplicity of NC primary vertices Average multiplicity: 3.6 QE-like: 9/44 = 20% Average multiplicity: 3.6

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 General Statistics: Vertex features Muon impact parameterHadron impact parameter Average IP: 2.8 mAverage IP: 12.0 m

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 General Statistics: Vertex features Azimuthal angle in frame between muon and hadrons, degrees h Clear anti-correlation between muon and hadron directions

Regina Rescigno, Giustino DAmato, Cristiano Bozza – Salerno Emulsion Group – Jan 2009 Conclusions Scanning stopped for Christmas holidays, restarted smoothly Event statistics increasing steadily Running parameters stable since several months (No brick-by-brick tuning)