[Clas12_photon] FT meeting tomorrow + proposal abstract

[Eugene Pasyuk]

I would specify the range of Q^2 rather then saying "very low" in the 
body of the abstract as it is done for angles, energies and flux. The 
title may remain the same.

-Eugene



On 10/19/10 10:43 AM, Marco Battaglieri wrote:
> Dear Colleagues,
> 1) the FT meeting tomorrow is canceled since it overlaps Stepan's
> presentation at LNF workshop. Nevertheless, we set up a meeting agenda
> page on the wiki
> (http://clasweb.jlab.org/wiki/index.php/10/20/2010_Meeting) where you
> can upload your updates for an off-line discussion by e-mail next days.
>
> 2) we have to submit to Marco Ripani the abstract of the proposal within
> tomorrow.
> Please take a look to this draft and send me back your comments/changes
> within today.
> It has not to be necessary the one that we'll put on the proposal but
> should state the main ideas.
>
>
> *Meson Spectroscopy with low $Q^2$ electronscattering in CLAS12
>
> */Understanding quark and gluon confinement in Quantum Chromo Dynamics is
> one of the main issues in hadronic physics. Meson spectroscopy with
> electromagnetic probes is a powerful tool to investigate how the QCD
> partons manifest themselves in strong interaction at the energy scale of
> the nucleon mass (GeV).
> We are proposing to extend the Hall-B CLAS12 capability to run experiments
> with quasi-real photons to study conventional and unconventional
> (hybrids and exotics) hadrons. The proposed technique, electroscattering
> at very low $Q^2$, providing a high photon flux and a high degree of
> linear polarization represents a competitive and complementary way to
> study the hadron spectrum and the production
> mechanisms with respect to standard real photo-production experiments
> with bremsstrahlung beams.
> A forward tagger made by a calorimeter, a veto counter and a tracking
> device will be added to the standard equipment to detect the
> scattered electrons in the angular range $ \theta_{e'}=2^\circ -
> 5^\circ$ and energy range $E_{e'}=0.5-4$ GeV, with an effective
> quasi-real photon flux of $10^7-10^8$ $\gamma/s$.
> The operations of the new device will be compatible with standard
> electron scattering experiments planned for Hall-B, allowing the
> proposed measurements to be run in parallel to the already approved program.
> The unique combination of CLAS12 and the new forward tagger facility
> will give access to an extensive physics program, which belongs to the
> main physics focus of the Jefferson Lab upgrade./
>
> Cheers
> Marco, Raffaella, Stepan and Igor
>
>
>
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