[Primex2] DNP abstract

[gasparan at jlab.org]

  I think this is okay to submit before the deadline.

 Thanks,
 Ashot


> Dear All,
>
> Please find the revised DNP abstract in the following link.
>
> https://www.jlab.org/primex/weekly_meetings/primexII/slides_2015_06_26/DNPabstract_yang.pdf
>
> Best
>
> Yang
>
> On Sun, Jun 28, 2015 at 4:38 PM, Yang Zhang <yzhang132 at gmail.com> wrote:
>
>> Dear All,
>>
>> Please find my DNP abstract below. I also include a link with a word
>> file
>> for the abstract. Please let me know if you have any comment.
>>
>> DNPabstract_yang.docx
>> <https://www.jlab.org/primex/weekly_meetings/primexII/slides_2015_06_26/DNPabstract_yang.docx>
>>
>> Best
>>
>> Yang
>>
>> *Measurement of Neutral π0 Lifetime*
>>
>>
>>
>> Yang Zhang
>>
>> Duke University
>>
>> (For the PrimEx collaboration)
>>
>>
>>
>> QCD chiral anomaly is the dominant component of π0®gg decay. A
>> prediction
>> of π0 lifetime can be used as a test of QCD at confinement scale.
>> Recent
>> theoretical activities have shown high precision (1% level) calculations
>> of
>> the decay width of the π0 decay into two photons. The experiment
>> measurement with comparable precision will be critical to test these
>> predictions. At Jefferson Lab, the PrimEx collaboration has performed
>> high
>> precision experiments to measure the π0 life time using Primakoff
>> effect.
>> The first experiment published its result with 2.8% total uncertainty in
>> the π0 decay width. The second experiment was carried out in Fall 2010
>> with the final goal of 1.4% precision. The preliminary result of this
>> experiment will be presented.
>>
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