I also redid my kinematic corrections, but found virtually no
difference between the old crunch and the recrunch. Of course, the
only thing that really changed were timing offsets and charge
calculation (and a few drift chamber wire offsets), so that isn't
surprising. More to follow at the collaboration meeting.
--Chris
On Jan 2, 2006, at 17:20:02, Nikolas Meitanis wrote:
> So in the light of this (the new re-crunch being worse at least in
> theta), should we use the old
> crunch instead? Michael?
>
> n
>
> Eugene J. Geis wrote:
>
>> Hello Blast,
>>
>> Apologies for the premature email: Chi is correct. My faulty
>> calculation of a missing mass cut eliminated a great deal of my
>> statistics. The discrepancy in the theta_e, theta_p that
>> corresponds to the mean of thetae-theta_e(theta_p) = -0.44 and
>> thetap-theta_p(theta_e) = -0.34 is about twice the original mean
>> from the last crunch. As Chi has quoted, the theta deviation is
>> worse with this library than with last year's original crunch of
>> the H2 data.
>>
>> This necessitated the employment of a X^2 minimization in Q2 and
>> then calculating the proper momenta and theta by event. The hard
>> offsets still show discrete jumps by TOF which is why the new
>> offsets are hard and added by charge and TOF. I'll have plots out
>> with the differences in the dataset using the kinematic offsets.
>> The offsets should be added like so:
>>
>> pe += pe_offset[electron][sector][tof];
>>
>> and
>>
>> thetap += tp_offset[electron][sector][tof];
>>
>>
>> The offsets are:
>>
>> PeLeft[] = {0.0122,0.0131,0.0229,0.0209,0.0226,0.0229,0.0238,
>> 0.0258,0.0247,0.0237,0.0219,0.0216,0.0230,0.0215,0.0193, 0.0187};
>>
>> PpLeft[] = { -0.0078,-0.0035,-0.0008,-0.0079,-0.0176,-0.0179,
>> -0.0162,-0.0207,-0.0249,-0.0284,-0.0280,-0.0255,-0.0269,-0.0264,
>> -0.0156, -0.0102};
>>
>> PeRight[] = {-0.0152,-0.0159,-0.0169, -0.0150,-0.0138,-0.0150,
>> -0.0349,-0.0425,-0.0387,-0.0342, -0.0293, -0.0273,-0.0194,-0.0121,
>> -0.0120,-0.0127};
>>
>> PpRight[] = {0.0401, 0.0396, 0.0419,0.0428,0.0400,0.0393, 0.0448,
>> 0.0476,0.0443,0.0453,0.0476, 0.0512, 0.0465,0.0414,0.0389,0.0346};
>>
>> TeLeft[] = {0.3109, 0.2367,0.6002,0.3758,0.3338,0.2095,0.1210,
>> 0.0776, -0.1202,-0.2350, -0.3792,-0.5872,-0.6170,-0.7477,-0.8057,
>> 0.1826};
>>
>> TpLeft[] = {1.2124,0.8412,0.5218,0.8061,1.2637,1.1962,0.9470,
>> 1.0394,1.1992,1.1599,1.2609,1.2712,1.4409,1.4654,1.0485,0.7716};
>>
>> TeRight[] = {-0.7944,-0.8158,-0.9546,-0.7797,-0.7888,-0.8689,
>> -1.7485, -1.9771,-1.6745,-1.3052, -1.2031,-1.1692,-0.9293,-0.6885,
>> -0.7704,-0.9981};
>>
>> TpRight[] = {0.0474,0.1496,0.0141,0.1354,0.1477,0.3213,0.5629,
>> 0.5377,0.3544,0.2760, 0.2538,0.2099,0.1363,0.0845,0.1247, 0.1422};
>>
>>
>> in long form:
>>
>> electron in Left Sector:
>> TOF = 0 offset = 0.0122
>> TOF = 1 offset = 0.0131
>> TOF = 2 offset = 0.0229
>> TOF = 3 offset = 0.0209
>> TOF = 4 offset = 0.0226
>> TOF = 5 offset = 0.0229
>> TOF = 6 offset = 0.0238
>> TOF = 7 offset = 0.0258
>> TOF = 8 offset = 0.0247
>> TOF = 9 offset = 0.0237
>> TOF = 10 offset = 0.0219
>> TOF = 11 offset = 0.0216
>> TOF = 12 offset = 0.0230
>> TOF = 13 offset = 0.0215
>> TOF = 14 offset = 0.0193
>> TOF = 15 offset = 0.0187
>>
>>
>> proton in Left Sector:
>> TOF = 0 offset = -0.0078
>> TOF = 1 offset = -0.0035
>> TOF = 2 offset = -0.0008
>> TOF = 3 offset = -0.0079
>> TOF = 4 offset = -0.0176
>> TOF = 5 offset = -0.0179
>> TOF = 6 offset = -0.0162
>> TOF = 7 offset = -0.0207
>> TOF = 8 offset = -0.0249
>> TOF = 9 offset = -0.0284
>> TOF = 10 offset = -0.0280
>> TOF = 11 offset = -0.0255
>> TOF = 12 offset = -0.0269
>> TOF = 13 offset = -0.0264
>> TOF = 14 offset = -0.0156
>> TOF = 15 offset = -0.0102
>>
>>
>> electron in Right Sector:
>> TOF = 0 offset = -0.0152
>> TOF = 1 offset = -0.0159
>> TOF = 2 offset = -0.0169
>> TOF = 3 offset = -0.0150
>> TOF = 4 offset = -0.0138
>> TOF = 5 offset = -0.0150
>> TOF = 6 offset = -0.0349
>> TOF = 7 offset = -0.0425
>> TOF = 8 offset = -0.0387
>> TOF = 9 offset = -0.0342
>> TOF = 10 offset = -0.0293
>> TOF = 11 offset = -0.0273
>> TOF = 12 offset = -0.0194
>> TOF = 13 offset = -0.0121
>> TOF = 14 offset = -0.0120
>> TOF = 15 offset = -0.0127
>>
>>
>> proton in Right Sector:
>> TOF = 0 offset = 0.0401
>> TOF = 1 offset = 0.0396
>> TOF = 2 offset = 0.0419
>> TOF = 3 offset = 0.0428
>> TOF = 4 offset = 0.0400
>> TOF = 5 offset = 0.0393
>> TOF = 6 offset = 0.0448
>> TOF = 7 offset = 0.0476
>> TOF = 8 offset = 0.0443
>> TOF = 9 offset = 0.0453
>> TOF = 10 offset = 0.0476
>> TOF = 11 offset = 0.0512
>> TOF = 12 offset = 0.0465
>> TOF = 13 offset = 0.0414
>> TOF = 14 offset = 0.0389
>> TOF = 15 offset = 0.0346
>>
>>
>> electron THETA in Left Sector:
>> TOF = 0 offset = 0.3109
>> TOF = 1 offset = 0.2367
>> TOF = 2 offset = 0.6002
>> TOF = 3 offset = 0.3758
>> TOF = 4 offset = 0.3338
>> TOF = 5 offset = 0.2095
>> TOF = 6 offset = 0.1210
>> TOF = 7 offset = 0.0776
>> TOF = 8 offset = -0.1202
>> TOF = 9 offset = -0.2350
>> TOF = 10 offset = -0.3792
>> TOF = 11 offset = -0.5872
>> TOF = 12 offset = -0.6170
>> TOF = 13 offset = -0.7477
>> TOF = 14 offset = -0.8057
>> TOF = 15 offset = 0.1826
>>
>>
>> proton THETA in Left Sector:
>> TOF = 0 offset = 1.2124
>> TOF = 1 offset = 0.8412
>> TOF = 2 offset = 0.5218
>> TOF = 3 offset = 0.8061
>> TOF = 4 offset = 1.2637
>> TOF = 5 offset = 1.1962
>> TOF = 6 offset = 0.9470
>> TOF = 7 offset = 1.0394
>> TOF = 8 offset = 1.1992
>> TOF = 9 offset = 1.1599
>> TOF = 10 offset = 1.2609
>> TOF = 11 offset = 1.2712
>> TOF = 12 offset = 1.4409
>> TOF = 13 offset = 1.4654
>> TOF = 14 offset = 1.0485
>> TOF = 15 offset = 0.7716
>>
>>
>> electron THETA in Right Sector:
>> TOF = 0 offset = -0.7944
>> TOF = 1 offset = -0.8158
>> TOF = 2 offset = -0.9546
>> TOF = 3 offset = -0.7797
>> TOF = 4 offset = -0.7888
>> TOF = 5 offset = -0.8689
>> TOF = 6 offset = -1.7485
>> TOF = 7 offset = -1.9771
>> TOF = 8 offset = -1.6745
>> TOF = 9 offset = -1.3052
>> TOF = 10 offset = -1.2031
>> TOF = 11 offset = -1.1692
>> TOF = 12 offset = -0.9293
>> TOF = 13 offset = -0.6885
>> TOF = 14 offset = -0.7704
>> TOF = 15 offset = -0.9981
>>
>>
>> proton THETA in Right Sector:
>> TOF = 0 offset = 0.0474
>> TOF = 1 offset = 0.1496
>> TOF = 2 offset = 0.0141
>> TOF = 3 offset = 0.1354
>> TOF = 4 offset = 0.1477
>> TOF = 5 offset = 0.3213
>> TOF = 6 offset = 0.5629
>> TOF = 7 offset = 0.5377
>> TOF = 8 offset = 0.3544
>> TOF = 9 offset = 0.2760
>> TOF = 10 offset = 0.2538
>> TOF = 11 offset = 0.2099
>> TOF = 12 offset = 0.1363
>> TOF = 13 offset = 0.0845
>> TOF = 14 offset = 0.1247
>> TOF = 15 offset = 0.1422
>>
>>
>>
>>
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