-European CS-scanning group- CS scanning in Europe -European CS-scanning group- 1

Outline CS-analysis group Status run 2009 Brick Finding 2009 Sviluppi sull’analisi dei CS (Likelihood, Vertexing) 2

CS-analysis group Fabio Chiara Natalia Serhan -> studia da “esperto” + Lab. Request + PT Nadia (informatico) -> studia da “esperto DB” + implementazione Vertexing

Run 2009 Status Report Event extracted = 1738 Event scanned = 1634 Event found = 1143 4

Run 2009 Status Report CS_CAND_OK 1170 52% NO_COSMIC_RAYS* 28 1.2% 1738 events, 2366 CS-doublets, 2251 CS-doublets analyzed CS_CAND_OK 1170 52% NO_COSMIC_RAYS* 28 1.2% BLACK_CS 42 1.9% BACK 719 31.9% CS_CAND_OK_FAST_UNPACK 31 1.4% WRONG_HANDLING 9 0.4% Total feedback 1999 89% + 70 CSd richiesti ma non ancora estratti * eventi in cui il brick sembra molto promettente 2 scanning, con candidati, ma segnale debole 5

NO_COSMIC

Brick Finding 2009 CS Measured Cs found BF (%) 1st brick 1651 930 56.3% 2nd brick 497 230 76.5% 3rd brick 41 15 85.1% CC CS Measured Cs found BF (%) 1st Brick 1159 715 61.7% 2nd brick 339 180 82% 3rd 25 11 89.9% NC CS Measured Cs found BF (%) 1st brick 492 215 43.7% 2nd 158 50 61.5% 3rd 16 4 71.1%

Brick Finding 2009 (Predizioni Dubna) CS Measured Cs found BF (%) 1st brick 689 417 60.5% 2nd brick 143 65 78.5% 3rd brick 10 4 87.5% CC CS Measured Cs found BF (%) 1st Brick 444 298 67.1% 2nd brick 77 46 86.8% 3rd 3 2 NC CS Measured Cs found BF (%) 1st brick 245 119 48.6% 2nd 66 19 63.4% 3rd 7 2 71.%

Brick Finding 2009 (Predizioni Lione) CS Measured Cs found BF (%) 1st brick 962 513 53.3% 2nd brick 354 165 75.1% 3rd brick 31 11 83.9% CC CS Measured Cs found BF (%) 1st Brick 715 417 58.3% 2nd brick 262 134 79.6% 3rd 22 9 87.9% NC CS Measured Cs found BF (%) 1st brick 247 96 38.9% 2nd 92 31 59.5% 3rd 9 2 68.5%

Run 2010 Status Report Events assigned to UE: 732 (457 CC + 275 NC) • 736 CS-doublets 209 CS analysed 96 CS_CAND_OK, 8 BLACK, 4 BACK

Programma di analisi Strategy: higher priority to 2009 events (rescan + analysis of 2nd bricks) + 15% of the scanning power devoted to the scanning of 2010 events Eventi da discutere: 115 (assumendo una percentuale di rescan di circa il 24%) Rescan: 24 (in coda) + 28 (da schedulare, assumendo una percentuale di rescan del 24%) Secondi brick da analizzare: 54 Secondi brick richiesti ma non ancora estratti: 70 Ev. POOR postposti: 40 TOT: 216 misure da fare Assumendo 40 doppietti/week -> 5/6 settimane (meta’ ottobre)

Implementazione Likelihood Studio parametri Likelihood (General Meeting Giugno) E D C B Rank Tot (%) Signal (%) Bkg (%) A 8.2 96.9 3.0 B 32.0 89.0 10.9 C 30.8 54.3 45.7 D 19.7 16.7 83.3 E 9.2 11.5 88.5 A+B 40.2 90.6 9.3 A

Implementazione Likelihood

Implementazione Likelihood Testato su 193 eventi (60 NC + 133 CC) 62 muoni su 77 hanno Rank > 20: 61 confermati al manual check, 1 fake 62 muoni <-> 55 eventi 55/133 ~ 41,3 % eventi CC sviluppati senza manual check, con 1 evento di fondo Il fondo puo’ essere ridotto selezionando i candidati muoni con X2 (4 parametri: posizione e angoli)

Implementazione Likelihood

Vertexing Algoritmo: Lettura da DB dei candidati validati Eliminazione tracce vetate Vertexing (librerie FEDRA) ID_CANDIDATE TRACK_RANK ---------------------- ---------------------- 9000000256687573 14 9000000256687564 16 9000000256687569 17 9000000256687572 18 9000000256687563 18 9000000256687571 19 9000000256687565 20 9000000256687567 22 9000000256687570 22 9000000256687568 23 9000000256687566 23 9000000256687562 24 9000000256687561 26 -> VETOED 9000000256687560 27

Vertexing: to do Selezionare eventi NC sviluppati, con almeno 2 tracce convergenti (e non vetate) Vertexing Studio tagli (DZ, IP) Integrazione con likelihood Integrazione nel software del CS