Re: some kinematic correction plots

From: Adrian T Sindile (asindile@cisunix.unh.edu)
Date: Wed Mar 08 2006 - 19:29:38 EST


I should add those bars in the plot are NOT error bars... I said it many
times, but just in case somebody does not remember... they are RMSs of the
gaussian distributions in each 1-degree theta bin...

Adrian

On Wed, 8 Mar 2006, Adrian T Sindile wrote:

> Hi Michael, Eugene,
> Here is a plot of my polynomials fitting those offsets:
>
> http://einstein.unh.edu/~adrian/meeting0905/7wcCutsPhi14Pol7.gif
>
> I think this is what Michael asked me about today over the phone (Eugene also
> had a related question in an email). I showed many times these plots
> before... The black curves fitting the blue points representing the offsets
> are the polynomials I sent last night (of course, only the top four plots in
> the above gif are related to momentum corrections).
>
> I guess I could have used lower degree polynomials, but I just wanted to use
> the same degree for all quantities shown in the gif... and 7 seems to
> represent them well, without wiggling too much.
>
> I hope this helps,
> Adrian
>
> On Tue, 7 Mar 2006, Adrian T Sindile wrote:
>
>> Hi Michael,
>> Here are the coefficients of my polynomials (Sum a_i * X^i), i=0 to 7,
>> where X is either theta_e or theta_p (the rest of the notation should be
>> self-explanatory):
>>
>> lEl[0] = 4.1776
>> rEl[0] = 10.96
>> lPr[0] = -172.12
>> rPr[0] = 1.12963
>> lEl[1] = -0.613272
>> rEl[1] = -1.69205
>> lPr[1] = 24.5484
>> rPr[1] = 0.832006
>> lEl[2] = 0.0371843
>> rEl[2] = 0.109535
>> lPr[2] = -1.48666
>> rPr[2] = -0.114424
>> lEl[3] = -0.00121402
>> rEl[3] = -0.00386183
>> lPr[3] = 0.0495661
>> rPr[3] = 0.00602106
>> lEl[4] = 2.30411e-05
>> rEl[4] = 8.02642e-05
>> lPr[4] = -0.000982763
>> rPr[4] = -0.000163778
>> lEl[5] = -2.53942e-07
>> rEl[5] = -9.84557e-07
>> lPr[5] = 1.15906e-05
>> rPr[5] = 2.45495e-06
>> lEl[6] = 1.50163e-09
>> rEl[6] = 6.60608e-09
>> lPr[6] = -7.5309e-08
>> rPr[6] = -1.93057e-08
>> lEl[7] = -3.6612e-12
>> rEl[7] = -1.87206e-11
>> lPr[7] = 2.08019e-10
>> rPr[7] = 6.23714e-11
>>
>> Adrian
>>
>> On Tue, 7 Mar 2006, Michael Kohl wrote:
>>
>>> Hi Adrian,
>>>
>>>> Please note from the stats how well they center around 0. If people find
>>>> these useful, I can send my parametrizations p_e(theta_e) and
>>>> p_p(theta_p)... they are 7-th degree polynomials used in event selection
>>>> and illustrated by the above plots.
>>> yes, please send them!
>>>
>>> Best regards,
>>>
>>> Michael
>>>
>>>
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>>
>>
>
>

-- 

------------------------------- Adrian Sindile Research Assistant Nuclear Physics Group University of New Hampshire phone: (603)862-1217 FAX: (603)862-2998 email: asindile@unh.edu http://einstein.unh.edu/~adrian/



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