[g13] Sector 4 problems in g13b data

Pawel Nadel-Turonski turonski at jlab.org
Wed Dec 2 21:14:09 EST 2009


Dear Nickolay,

Which runs are you analyzing? The last 1/3 I hope, as was suggested?

Best Regards,

    Pawel

nivanov at jlab.org wrote:
> Dear g13,
>
> Analyzing the azimuthal dependence of the deuteron photodisintegration
> in g13b, we found surprising problems with Sector 4 (150<\phi<210).
> Practically all the proton distributions in Sector 4 differ essentially
> from corresponding ones in other sectors. In particular, in
> http://www.jlab.org/~nivanov/Preliminary_mass.ppt
> both the TOF and missing mass distributions of the proton are presented
> for sectors 3 and 4 (at \teta>40). One can see a sizable difference...
>
> Do anyone know what takes place in sector 4?
> TOF problems?
>
> Thank you,
> Nickolay Ivanov
>
>
>
>
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