[clas12_rgk] Isupov results: 2 gamma Invariant mass

[Francois-Xavier Girod]

Dear Volker, Viktor

I did not have a condition that photons are in the same sector in my
analysis

Best regards
FX

On Sun, Jul 7, 2019 at 8:15 PM Viktor Mokeev <mokeev at jlab.org> wrote:

> Thank you Volker,
>
>
>  Evgeny will prepare more detailed talk for the rg-k Meeting.
>
>
> Best Regards,
>
>                                   Victor
> ------------------------------
> *From:* clas12_rgk <clas12_rgk-bounces at jlab.org> on behalf of burkert <
> burkert at jlab.org>
> *Sent:* Sunday, July 7, 2019 2:02:12 PM
> *To:* clas12_rgk at jlab.org
> *Subject:* Re: [clas12_rgk] Isupov results: 2 gamma Invariant mass
>
> Hi all,
> You may be able to increase the eta yield by allowing the 2-gammas in
> different sectors, otherwise the acceptance for eta's will be limited as
> they have much larger minimum opening angles than pi0's.
>
> Volker
>
>   On 7/7/19 1:57 PM, Viktor Mokeev wrote:
>
> Dear Colleagues,
>
>
> Evgeny Isupov repeated selection of gvp p--->pi^0p'---> gamma gamma p'
> events from the same data set and with the same selection criteria as FX
> did. His results for 2gamm inv masses are consistent with FX.
>
>
>  Best Regards,
>
>                                       Victor
>
>
> ------------------------------
> *From:* Evgeny Isupov <e.l.isupov at gmail.com> <e.l.isupov at gmail.com>
> *Sent:* Sunday, July 7, 2019 1:17 PM
> *To:* Viktor Mokeev
> *Subject:* 2 gamma Invariant mass
>
> Hi Victor Ivanovich,
>
> I used FX’s cuts and plotted 2 gamma invariant mass.
> On the right you can see the same plot only in log scale,
> we can clearly see the eta meson signal.
>
>
> Evgeny Isupov
>
>
>
> This body part will be downloaded on demand.
>
>
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