[Hps-analysis] vertex x position

[Omar Moreno]

Vx, Vy using unconstrained collection. I need to regenerate my Vz plot.
With the unconstrained collection I see shifts of about 170 um in x and 5
um in y.

On Wed, Aug 2, 2017 at 11:06 AM, Omar Moreno <email at omarmoreno.net> wrote:

> Good point. Let me generate the plots.
>
> On Wed, Aug 2, 2017 at 11:04 AM, Graf, Norman A. <ngraf at slac.stanford.edu>
> wrote:
>
>> ​Agreed. I think for questions such as this, we need to analyze
>> UNnconstraind vertices.
>>
>>
>> Norman
>>
>>
>> ------------------------------
>> *From:* Hps-analysis <hps-analysis-bounces at jlab.org> on behalf of
>> Graham, Mathew Thomas <mgraham at slac.stanford.edu>
>> *Sent:* Wednesday, August 2, 2017 10:58 AM
>> *To:* Omar Moreno
>> *Cc:* hps-analysis at jlab.org
>> *Subject:* Re: [Hps-analysis] vertex x position
>>
>>
>> If this is still target constrained then this will skew the mean by quite
>> a bit...
>>
>> On Aug 2, 2017, at 11:56 AM, Omar Moreno <email at omarmoreno.net> wrote:
>>
>> I'm seeing a much smaller shift (~-13 um)  (see attached).  I wonder how
>> much you would need to move the target to get the 127 um shift we see in
>> data? Just curious ...
>>
>> On Wed, Aug 2, 2017 at 9:54 AM, Rafayel Paremuzyan <rafopar at jlab.org>
>> wrote:
>>
>>> This is the most recent scan with svt_top from 2015 data
>>> https://logbooks.jlab.org/entry/3340385
>>>
>>> It shows beam_x position is -0.127mm
>>>
>>> So might be it is normal than Omar sees X slightly negative.
>>>
>>> Rafo
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>>> Hps-analysis mailing list
>>> Hps-analysis at jlab.org
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>>>
>>
>> <moller_vx.pdf>_______________________________________________
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>>
>>
>
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