Π polarizability Meeting Oct 12, 2012

Meeting Info.

Meeting Time

9:00 EST

Connecting

We meet via Skype. The relevant Skype user names are:

• Rory Miskimen - rmiskimen
• Alexander Mushkarenkov - alexander_mushkarenkov
• Elton Smith - eltonssmith
• David Lawrence - aehsdad

Agenda

1. Previous meeting: Sep. 28, 2012
2. Generated and Reconstructed Kinematics at nominal target position (Elton)
   • ROOT source files
   • Plots of pi+ and pi- kinematics for nominal 30 cm hydrogen target
   • Plots of pi+ and pi- kinematics for nominal 30 cm hydrogen target with vertex constraint
3. Questions from Collab. meeting:
   1. Richard: how well do we need to know the photon polarization? (as it impacts the ability to separate out the rho background)
   2. Eugene: What are the advantages of photoproduction relative to pion production?
   3. Beni: What is the optimal photon beam energy, especially considering that the polarization can be considerably enhanced for lower beam energies?
   4. Eugene: Moving the target upstream may affect the ability of the solenoid field to confine electromagnetic background within a small distance from the beamline. So this is a second consideration that should be included in picking the target location.
   5. Sasha: We need to think about how to trigger this experiment, as it cannot rely on energy deposition in the barrel.

Minutes

Attendees:

TBD

Action Items

TBD