[Clas_hadron] Talk on coherent rho photoproduction using g10, APS April 2015

[Hicks, Kenneth]

Eugene,

In the same t-range as SLAC, the CLAS data have almost exactly the same t-dependence as they measured.  Only at larger t, which was not accessible to SLAC, do we see a second t-dependence (which could come from secondary scattering of the rho).  However, you are correct to point out that this is not clear on a first look.  We will work to make this clearer in Taya's talk.

Best regards,
Ken


________________________________________
From: clas_hadron-bounces at jlab.org <clas_hadron-bounces at jlab.org> on behalf of Eugene Pasyuk <pasyuk at jlab.org>
Sent: Tuesday, April 7, 2015 2:22 PM
To: chetry at jlab.org
Cc: CLAS Hadron Spectroscopy
Subject: Re: [Clas_hadron] Talk on coherent rho photoproduction using g10,      APS April 2015

Dear Taya,

The second bullet in the summary says about different t-slope. I am not sure you can make this statement based on the CLAS data. SLAC data do show different slopes but they are measured at significantly higher energies. Looking at your cross sections I don't see t-slope change. Could you comment on this.

Thanks,

-Eugene

----- Original Message -----
> From: chetry at jlab.org
> To: "CLAS Hadron Spectroscopy" <clas_hadron at jlab.org>
> Sent: Tuesday, April 7, 2015 1:53:35 PM
> Subject: [Clas_hadron] Talk on coherent rho photoproduction using g10,        APS April 2015

> Dear all,
>
> I am going to give a contributed talk in the APS April Meeting, which is
> less than a week from now. My talk is titled "Coherent rho-meson
> photoproduction off deuterium from CLAS".
>
> This talk will present preliminary cross sections obtained from the g10
> data set. This utilizes fits about the &#961; peak within the invariant
> mass spectrum of the &#960;+&#960;&#8722; pair for bins in the 4-momentum
> transfer, t, as a function of E&#947;. This result will help improve
> understanding of nucleon scattering. In addition, this study is also
> important to understand the backgrounds in analyses of a possible d&#8727;
> dibaryon resonance that has the same final state.
>
> You can find the slides at
>
> https://www.jlab.org/Hall-B/secure/hadron/presentations/2015/APS_2015_coherent_rho_Taya.pdf
>
> Any comments or suggestions would highly be appreciated.
>
> The talk is on Sunday, April 12th at 11:09 am.
>
> Regards,
> Taya Chetry
>
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> Clas_hadron at jlab.org
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