[Deeppwg] Abstract for Hadron-2013

[Daria Sokhan]

Hello Volker,

Thanks very much for your comments!

1). I agree one must be clear about what kind of E we can extract with
neutron-DVCS. I mentioned in my abstract that one needs measurements on
both proton and neutron for flavour decomposition, just before talking
about E, so I didn't want to repeat myself again with reference to E. I
will make sure it's explicitly clear in the talk!

2). Corrected!

3). I agree, but looking at the VGG predictions for the beam spin asymmetry
depending on different values of Ju, Jd, it varies even when Ju is changed
and Jd is kept constant. I understood that this is because VGG is based on
data from all the measurements we currently have, most of which are on the
proton. I just meant to say in the abstract that the measurement, when
taken together with proton data, has high sensitivity to J of u and d
quarks in general. I'll have to make that extra clear in the talk, as well.

Thanks to everyone for the other comments I received, I've made the
suggested changes and submitted the abstract.

Cheers,
Daria


On 26 August 2013 02:20, Daria Sokhan <daria at ipno.in2p3.fr> wrote:

> Hello Volker,
>
> Thanks very much for your comments!
>
> 1). I agree one must be clear about what kind of E we can extract with
> neutron-DVCS. I mentioned in my abstract that one needs measurements on
> both proton and neutron for flavour decomposition, just before talking
> about E, so I didn't want to repeat myself again with reference to E. I
> will make sure it's explicitly clear in the talk!
>
> 2). Corrected!
>
> 3). I agree, but looking at the VGG predictions for the beam spin
> asymmetry depending on different values of Ju, Jd, it varies even when Ju
> is changed and Jd is kept constant. I understood that this is because VGG
> is based on data from all the measurements we currently have, most of which
> are on the proton. I just meant to say in the abstract that the
> measurement, when taken together with proton data, has high sensitivity to
> J of u and d quarks in general. I'll have to make that extra clear in the
> talk, as well.
>
> Thanks to everyone for the other comments I received, I've made the
> suggested changes and submitted the abstract.
>
> Cheers,
> Daria
>
>
>
> On 20 August 2013 19:55, burkert <burkert at jlab.org> wrote:
>
>>  Hello Daria,
>>
>> The abstract reads very well. I have just a couple of suggestions:
>>
>> 1) Measurement of E.
>>   It is a phrase often used, that measurement of the beam asymmetry on
>> the neutron give better access to GPD "E". While that is true, it is also
>> true that measurements of E on neutrons measures E^n only, and we still
>> need to measure E^p on the proton for a flavor decomposition into u and d
>> quarks.
>>
>> 2) The phrase "12 GeV making accessible a vast new region ..." is may be
>> too strong, maybe something like "....significantly extends the available
>> phase space .." would be more appropriate.
>>
>> 3) The last sentence  "... particularly sensitive to total angular
>> momentum..." could be more specific "... particularly sensitive to the
>> total d-quark angular angular momentum..".
>>
>> All the best,
>> Volker
>>
>>
>>
>>
>>   On 8/20/13 7:28 AM, Daria Sokhan wrote:
>>
>>
>>  Dear everyone,
>>
>>  I'd like to submit the attached abstract for the Hadron2013 conference
>> which takes place in November. I plan to present my results on neutron-DVCS
>> from the eg1-dvcs experiment, talk about the Central Neutron Detector for
>> CLAS12 and introduce the nDVCS experiment planned at 11 GeV.
>>
>>  Please let me know if you have any comments. I will need to submit the
>> abstract on Sunday.
>>
>> Many thanks!
>>
>>  Daria
>>
>>
>>
>> --
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> Daria Sokhan
>> School of Physics & Astronomy
>> Kelvin Building, Room 505
>> University of Glasgow
>> Glasgow, G12 8QQ                    tel: +44 (0)141 330 2774
>> Scotland, UK                            fax: +44 (0)141 330 5299
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>>
>> This body part will be downloaded on demand.
>>
>>
>>
>
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Daria Sokhan
> School of Physics & Astronomy
> Kelvin Building, Room 505
> University of Glasgow
> Glasgow, G12 8QQ                    tel: +44 (0)141 330 2774
> Scotland, UK                            fax: +44 (0)141 330 5299
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>



-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Daria Sokhan
School of Physics & Astronomy
Kelvin Building, Room 505
University of Glasgow
Glasgow, G12 8QQ                    tel: +44 (0)141 330 2774
Scotland, UK                            fax: +44 (0)141 330 5299
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailman.jlab.org/pipermail/deeppwg/attachments/20130826/adc7a9ad/attachment.html