[Clas_hadron] Abstract to ICHEP2010

[Viktor Mokeev]

  Hi  Kyungseon ,

  Please find my suggestions in <<....>>.

   Best Regards,
                         Victor

On Fri, 14 May 2010, Kyungseon Joo wrote:

> Dear all,
>  I would like everyone to take a look and comment on my abstract to
> ICHEP2010 in Paris. Please send comments to me.  Thanks.
>
> Best regards, Kyungseon
>
> ----------------------------------------------------------------------------------------------------------------------------------------------------
> Title: The study of the electrogamatic N* transition form factors with
> CLAS12 at Jefferson Lab
>
> We will discuss the program to study the electromagnetic N* transition
> form factors
> with the CLAS12 detector and the energy upgraded 12 GeV
> CEBAF beam at Jefferson Lab. <<We plan to measure exclusive single-meson 
and double-pion electroproduction cross sections off a proton target to 
study almost all well established N*'s  at still unexplored area of 
highest photon virtualities ever achieved in the resonance studies from 
5.0 to 10 GeV^2 >> Exclusive final states will be measured including the
> identification of pi0 and eta mesons by measuring the two decay
> photons as well as of charged multi-pions.

>From the proposed
> measurements, we expect to obtain the electromagnetic transition form
> factors gvNN* (electrocouplings)  for well established excited proton 
states  <<at the distance scales, that  correspond to leading 
contribution from quark degrees of freedom. 
Expected data on electrocouplings of excited proton states with 
various quantum numbers will allow us to explore how the 
non-perturbative strong 
interaction between dressed quarks create nucleon resonances and how they 
emerge from QCD. For the first time we will be able to study generation of 
dressed quark dynamical mass, that account for > 97\% of hadron mass and 
to extend our knowledge on behavior of running strong coupling in 
transition regime from confinement to pQCD. > >

> The close collaboration
> experimentalists and theorist will allow us to provide high-precision data,
> high-quality analyses, as well as state of the art model and QCD based
> calculations [1].
> We also review the current N* program with CLAS at Jefferson Lab as well.
>

References

[1]. Theory Support for Excited Baryon Program at JLAB 12 GeV Upgrade, 
arXiv:0907.1901[hep-th]

>
> -- 
> Kyungseon Joo Associate Professor of Physics
> University of Connecticut
> Storrs, CT 06269 http://www.phys.uconn.edu/~kjoo
>