to turn on the old 6-th order garfield t2d function, set in blastrc:
*.Hit.SixthOrder on
*.Hit.9th_cal off
I think on lrn command line, it can be set as:
lrn .... -Hit.9th_cal +Hit.SixthOrder
Like I said the other day, due to the empirical nature of my calibration, in
principle t2d should be recalibrated if the tracking environment is changed. I
don't think I have any time to re do the whole procedure which was a major
endeavor for the entire summer of 2004.
garfield is different ofcourse but it has its own problems which was why we
proceeded with the new calibration.
Chi
Quoting Michael Kohl <kohlm@MIT.EDU>:
> The increased angle offset is worrysome though, and it would be
> interesting to see if the difference of the angle offset between old
> and new crunch is entirely due to the field map, or if other changes
> such as t2d etc. can be made responsible.
>
> With v3_4_14/lrn, Chi's t2d calib was used. If someone can let me
> know how to switch to the previous t2d (by Aaron?) version, I can do
> a quick lrd recrunch of the 2004 hydrogen data 12144-13266 before
> Thursday.
>
> Best regards,
>
> Michael
>
>
>
>
> On Mon, 2 Jan 2006, 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
>>>
>>>
>>>
>>>
>>
>
>
> +-------------------------------------+--------------------------+
> | Office: | Home: |
> |-------------------------------------|--------------------------|
> | Dr. Michael Kohl | Michael Kohl |
> | Laboratory for Nuclear Science | 5 Ibbetson Street |
> | MIT-Bates Linear Accelerator Center | Somerville, MA 02143 |
> | Middleton, MA 01949 | U.S.A. |
> | U.S.A. | |
> | - - - - - - - - - - - - | - - - - - - - - -|
> | Email: kohlm@mit.edu | K.Michael.Kohl@gmx.de |
> | Work: +1-617-253-9207 | Home: +1-617-629-3147 |
> | Fax: +1-617-253-9599 | Mobile: +1-978-580-4190 |
> | http://blast.lns.mit.edu | |
> +-------------------------------------+--------------------------+
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
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