Hi Michael,
I have to check the version of the recrunch, but I am sure I did not use
the latest one (the one done with the recalculated charge)... and the plot
I sent was presented in September 2005, as the folder name bellow would
suggest:
http://einstein.unh.edu/~adrian/meeting0905/7wcCutsPhi14Pol7.gif
I will send the plots you requested as soon as possible, I really
have to wrap up my thesis revision this week so that I can get John's OK
for handing it to the other members of my thesis committee.
Thank you,
Adrian
On Wed, 8 Mar 2006, Michael Kohl wrote:
> Hi Adrian,
>
> thanks for the plot. Please also send the parameters for the other
> parametrizations of corrections for proton-theta's, phi's and z's as
> functions of electron-theta's, phi's and z's.
>
> I see that the correction for proton-dz is almost 1cm in the right sector.
> The correction assumes that electron-z is correct. How do the absolute z
> distributions for protons and electrons compare with each other? Are the
> corrected distributions symmetric around z=0?
>
> Similarly, are the corrected phi distributions symmetric around phi=0 and
> phi=180?
> If not, the assumption of believing z_electron and phi_electron may not be
> valid.
>
> So, please send plots for phi and z for protons and electrons before and
> after corrections.
>
>
>> From looking at the angle offset of about -0.2 degrees I assume that your
> results are for the most recent recrunch, right? So, how does the ep elastic
> yield distribution as a function of Q2 compare with the previous crunch
> version of last summer (v3_4_12), both before and after corrections? Did the
> most recent recrunch after including corrections change anything? (Or
> differently asked, is it the electron angle or the proton angle that has
> shifted by 0.2 degrees between the two crunch versions?)
>
>
> Best regards,
>
> Michael
>
>
>
>
> 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
>>>>
>>>>
>>>> +-------------------------------------+--------------------------+
>>>> | 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 | |
>>>> +-------------------------------------+--------------------------+
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>
>> --
>>
>> -------------------------------
>> 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/
>>
>>
>
>
> +-------------------------------------+--------------------------+
> | 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 | |
> +-------------------------------------+--------------------------+
>
>
>
>
>
>
>
>
>
>
>
>
>
>
--------------------------------- 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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