[Clas12_dileptons] [EXTERNAL] Talk at HADRON2023

Bryan McKinnon Bryan.McKinnon at glasgow.ac.uk
Fri May 26 06:08:42 EDT 2023

Hi Richard

These are nice slides and Stepan’s suggestions should be implemented.

As for showing modified AU XSec and diff-XSec, I have no issues with that and indeed I think it would be good to show them at Hadron.


> On 25 May 2023, at 19:35, Stepan Stepanyan via Clas12_dileptons <clas12_dileptons at jlab.org> wrote:
> Richard,
> Here are a few comments:
> - slide 6, remove bar from top D^{*(-)} in the right box diagram. The D- is the antiparticle of D+
> - slide 14, are you going to comment on J/psi peak position differences for different topologies?
> - slide 15, I believe on the left, in the text, the reaction formula in blue should be e+e- not \mu+\mu-
> - slide 16, with such large errors and without systematic uncertainties, I will refrain from stating/suggesting “similar gluons gravitational form factors” for neutron and proton. Saying that they are close and agreeing to each other should be enough.  
> - slide 18, RG-B still has 60% to run, not 40%. RG-A needs to get at least another half if spring 18 will be analyzable.
> Stepan
>> On May 25, 2023, at 11:42 AM, Richard Tyson (PGR) via Clas12_dileptons <clas12_dileptons at jlab.org <mailto:clas12_dileptons at jlab.org>> wrote:
>> Hi all,
>> I'm going to give a talk at the HADRON2023 conference <https://urldefense.proofpoint.com/v2/url?u=https-3A__agenda.infn.it_event_33110_&d=DwMFAw&c=CJqEzB1piLOyyvZjb8YUQw&r=jsuHJvZltBfNoE12ZB2mBPyDG2wcNuxiKB_RQsgdKh0&m=d5zRTyNRxZ6v6ToxvLLLCxtouI1BRfhXoK-3rv5DEyiolKPEam8aMfynmba7GdMk&s=OIVPXdyKSofD-AJfn-3CRo94k8ICh2Nw5wqUkF03cRk&e=> next month on J/psi photoproduction on the proton and neutron with CLAS12 and wanted to check that the content if fine with you all. I've attached my slides; any feedback is welcome! This is a somewhat preliminary version of my slides, I'll probably cut back on some of the text or content but I won't add anything more.
>> In particular I show plots of the total and differential cross sections in AU (with the shape of the differential cross section modified) on slides 15 and 16. Please let me know if you think this is too early to show.
>> Thanks,
>> Richard
>> <HADRON_JPsiPhotoProd_June2023.pdf>_______________________________________________
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Dr. Bryan McKinnon

Nuclear and Hadron Physics Research
School of Physics and Astronomy
University of Glasgow
G12 8QQ
Scotland UK

Tel: (+44/0) 141-330-7226

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