[G14_run] Vertex Distribution

Walford natalie at jlab.org
Tue Mar 20 11:55:20 EDT 2012


Hi,
So I am hoping this is my last email for awhile on this, so sorry for so
many mails!! I have now also included background subtraction per Alex and
others request to show the actual HD. If you have any questions or
comments, please let me know.

http://www.jlab.org/Hall-B/secure/g14/Natalie/vertexdistribution.pdf

Thanks,
Natalie

> Hi,
> I have updated the plots to include some of the suggestions given to me. I
> am still working on subtracting the background as asked for by Alex and
> hope to have those plots by the end of the day. Sorry for the delay.
>
> http://www.jlab.org/Hall-B/secure/g14/Natalie/vertexdistribution.pdf
>
> Thanks,
> Natalie
>
>> Hi,
>> Here is the vertex distribution that was requested of me during the
>> Friday
>> meeting. I included three different ways of obtaining the vertexes:
>> using
>> TBTR bank, cut on cos theta in TBTR bank, and MVRT bank. Also you will
>> see
>> the vertex distribution is for the test target used in November, the
>> silver target used til recently, the silver target emptied recently, and
>> then the new target installed within the last week (which I have dubbed
>> March New Target). If there are questions, concerns, or would like to
>> see
>> the vertex in a different way, please let me know. I only picked some
>> histograms that seemed most relevant, but have more available.
>>
>> http://www.jlab.org/Hall-B/secure/g14/Natalie/vertexdistribution.pdf
>>
>> Thanks,
>> Natalie
>>
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>
>
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