[Eic_ct] minutes of the 03/18/ phone meeting

[Leonid Frankfurt]

Hi everybody,
it is important to measure recoil particle. This is because in QCD
many observables for semiinclusive processes depend strongly on
the mass of associated system.cf figures in our paper B.Blok,L.Frankfurt and
M.Strikman. If to ignore this property of QCD evolution bizarre effects
would
arise which contradict to common sense.  This is exactly what happen at HERA
in the interpretation of data on the process: \gamma^*+p\J/\psi +rap gap +Y
Best Leonid


On Thu, Mar 18, 2010 at 7:43 PM, Dipangkar Dutta <d.dutta at msstate.edu>wrote:

> Hello All,
> Here are the minutes of today's phone meeting, they are also posted on the
> Wiki.
>
> https://eic.jlab.org/wiki/index.php/EA_color_in_nuclei:_meeting_minutes_3/18/10
>
> == Participants ==
>
> ''Lamiaa El Fassi, Wim Cosyn, Gerry Miller, Dipangkar Dutta''
>
> Gerry gave us a quick update from the Rutger's EIC meeting
>
> We discussed the point that for most exclusive reactions, the lack of
> missing mass resolution implies that, we have to detect the recoil particle
> to
> ensure exclusivity. In many cases the recoil is at very forward angles and
> detection would be difficult. For each reaction under study we should list
> the
> kinematics for all reactions products so that the detector requirements can
> be
> specified.
>
> Progress on the reactions under study.
>
> * Coherent diffractive &rho;<sup>0</sup>, J/&Psi; production from nuclei
> (Lamiaa)
> Event generator is being modified for the collider geometry and it will be
> used
> with a PYTHIA code under development.
>
> * Exclusive &pi;, p, pp production from nuclei. (Wim)
> Kinematics have been simulated, will also look at the kinematics of the
> recoil
> particle
>
> * diffractive di-jet, and high p<sub>T</sub> di-jet production (DD)
> Determined to be not suitable for mEIC energies
>
> Gerry mentioned Mark Strikman and S. Kumano's work on a couple of new
> observables:
> 2-to-3 hard hadronic processes and large angle two body scattering.
> He also mentioned that at the Rutgers meeting Stan Brodsky talked about
> several new observables.
>
> We will look into these observables and their feasibility at the EIC.
>
>
>
> --
> Dipangkar Dutta    Assistant Professor
> Department of Physics & Astronomy
> Mississippi State University
> Rm 010C Hilbun Hall,  P.O. Box 5167
> Mississippi State, MS 39762-5167
> Ph: 662 325 3105      Fax: 662 325 8898
> email: d.dutta at msstate.edu
> webpage: http://ra.msstate.edu/~dd285 <http://ra.msstate.edu/%7Edd285>
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