Accidentals rate vs running period

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# Accidentals rate vs running period - PowerPoint PPT Presentation

Accidentals rate vs running period. Accidental rate : - P1A,P2A,P1Atw,P2Atw - comparison MC vs Data - with/without corrections Corrections table along the running periods. S.Miscetti. MC meeting 22-Dec-2004. S.Miscetti. Identification of the rate problem ??.

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Accidentals rate vs running period
• Accidental rate :
• - P1A,P2A,P1Atw,P2Atw
• - comparison MC vs Data
• - with/without corrections
• Corrections table along the running periods

S.Miscetti

MC meeting 22-Dec-2004

S.Miscetti

Identification of the rate problem ??

The problem of P1A is related to the fact that in BGG files there is always at least one accidental hit which is a condition mostly satisfied in 2001 (testing sample)

Not at all in 2002!

The rate problem can be partially fixed by measuring P1A for

the whole 2001-2002 period and scaling it whenever P1A < 100%

S.Miscetti

Prob.Acci vs run period (2001)

Data

• Bins of 10 pb-1
•  PA(ge 1) no cuts
•  PA1 no cuts
•  PA2 no cuts
• All numbers obtained
• by counting in Early
• TW and extrapolated
• to the whole range with
• TDCwidth = 190 ns

MC

Prob.Acci (corrected) vs run period (2001)

Data

• Bins of 10 pb-1
• All MC numbers
• corrected by the
• Data/MC ratio
• of PA(ge 1) to take
• into account the
• case with no hits
• in the selbkg file.

MC

Prob.Acci in TW vs run period (2001)

P1ATW

P2ATW

Prob obtained by extrapolating by the early TW ... 10-20 % precision

• DATA
• MC
• MC without corr
• MC corrected by R

Correction OK for 1A

Overcorrection for 2A

OK for T0loss

Prob.Acci in TW vs run period (2002)

P1ATW

P2ATW

Prob obtained by extrapolating by the early TW ... 10-20 % precision

• DATA
• MC
• MC without corr
• MC corrected by R

Correction OK for 1A

Overcorrection for 2A

OK for T0loss

Correction factors vs run period (2001)

runmin runmax P1A(%) P2A(%) P1A(%)P2A(%)R factorP1A_cor P2A_cor

17500.00 19059.00 0.6961407 0.1156164 0.9745483 0.9099301E-01 0.7823050 0.7623940 0.7118430E-01

19059.00 19385.00 0.7017964 0.1596806 1.103994 0.1138742 0.8047730 0.8884610 0.9164270E-01

19385.00 19782.00 0.9004024 0.1727029 1.076300 0.1215395 0.9410380 1.012840 0.1143740

19782.00 20191.00 0.8315204 0.1466441 1.073189 0.1251422 0.8623920 0.9255100 0.1079210

20191.00 20492.00 0.9265859 0.1465115 1.094440 0.1286093 0.9536720 1.043740 0.1226510

20492.00 21061.00 0.8768613 0.1386591 1.067852 0.1126690 0.9032990 0.9645880 0.1017740

21061.00 21390.00 0.7717725 0.1227283 1.094331 0.1038795 0.8156380 0.8925770 0.8472770E-01

21390.00 21592.00 0.6755515 0.1547181 0.9739469 0.1099748 0.7648190 0.7448930 0.8411100E-01

21592.00 21801.00 0.6141989 0.1253308 1.013951 0.1191662 0.7063600 0.7162140 0.8417410E-01

21801.00 22099.00 0.4105928 0.7855523E-01 0.8658659 0.9509510E-01 0.5491480 0.4754890 0.5222130E-01

22099.00 22245.00 0.6580211 0.9365994E-01 0.9356500 0.1111111 0.7104400 0.6647230 0.7893770E-01

22245.00 22459.00 0.7371183 0.1566476 1.069690 0.1242634 0.8258680 0.8834230 0.1026250

22459.00 22626.00 0.9328538 0.1566747 1.053745 0.1443145 0.9625930 1.014320 0.1389170

22626.00 22812.00 0.8660969 0.1956315 1.048001 0.1048001 0.9015210 0.9447940 0.9447940E-01

22812.00 22981.00 0.7102804 0.1355140 0.9809373 0.1297326 0.8078790 0.7924780 0.1048090

22981.00 23123.00 0.7290640 0.1494253 1.023673 0.1140305 0.7983190 0.8172150 0.9103310E-

DATA

MC

MC (corr.)

Correction factors vs run period (2002)

runmin runmax P1AP2AP1AP2Afactor P1Acor P2Acor

23500.00 23683.00 0.4404452 0.8524746E-01 0.9581550 0.1046125 0.4954050 0.4746750 0.5182530E-01

23683.00 23806.00 0.4664179 0.7462686E-01 0.9690260 0.1115396 0.5196620 0.5035660 0.5796310E-01

23806.00 23992.00 0.4258093 0.9341733E-01 0.9016585 0.8876430E-01 0.5015510 0.4522270 0.4451980E-01

23992.00 24173.00 0.5671923 0.7295834E-01 0.9317184 0.9184081E-01 0.6141730 0.5722360 0.5640610E-01

24173.00 24317.00 0.3988013 0.6608269E-01 0.8558906 0.1125720 0.4664040 0.3991910 0.5250400E-01

24317.00 24445.00 0.3440367 0.9174312E-01 0.8980002 0.1106779 0.4213610 0.3783820 0.4663540E-01

24445.00 24649.00 0.4449103 0.7686932E-01 0.8309714 0.9275959E-01 0.4611810 0.3832280 0.4277900E-01

24649.00 24874.00 0.4525514 0.8466097E-01 0.9116132 0.7838993E-01 0.4854710 0.4425620 0.3805600E-01

24874.00 25005.00 0.5285215 0.8381840E-01 0.9350788 0.1273488 0.5838700 0.5459650 0.7435530E-01

25005.00 25120.00 0.4192872 0.5202267E-01 0.9606923 0.1290701 0.5141750 0.4939640 0.6636460E-01

25120.00 25261.00 0.4012060 0.6957328E-01 0.9142150 0.1223536 0.4220010 0.3858000 0.5163350E-01

25261.00 25387.00 0.3951298 0.6968375E-01 0.9033400 0.9362349E-01 0.4854240 0.4385030 0.4544710E-01

25387.00 25502.00 0.3584817 0.5935645E-01 0.8497072 0.1023639 0.4499460 0.3823220 0.4605830E-01

25502.00 25637.00 0.4154026 0.8634773E-01 0.8483021 0.8959399E-01 0.4602840 0.3904600 0.4123870E-01

25637.00 25764.00 0.4560260 0.6747325E-01 0.8575524 0.1003519 0.5045270 0.4326590 0.5063030E-01

25764.00 25940.00 0.3358384 0.6106153E-01 0.9304085 0.9077156E-01 0.4363760 0.4060080 0.3961050E-01

25940.00 26024.00 0.3859985 0.8710940E-01 0.8633953 0.1229001 0.4739480 0.4092040 0.5824820E-01

26024.00 26133.00 0.4220228 0.8488964E-01 0.8685615 0.1250421 0.4659120 0.4046730 0.5825860E-01

26133.00 26206.00 0.3243767 0.7020092E-01 0.8405040 0.1131940 0.4310880 0.3623320 0.4879660E-01

26206.00 26312.00 0.3339834 0.6175849E-01 0.8181246 0.8338578E-01 0.4680750 0.3829440 0.3903080E-01

26312.00 26414.00 0.3598485 0.4971591E-01 0.8680466 0.1159983 0.4274850 0.3710770 0.4958740E-01

26414.00 26522.00 0.3549309 0.6272828E-01 0.8544040 0.9539687E-01 0.4888910 0.4177110 0.4663870E-01

26522.00 26656.00 0.4496469 0.6317354E-01 0.8151383 0.9461427E-01 0.4953360 0.4037670 0.4686590E-01

DATA

MC (corr.)

MC