[PEPPo] Fwd: [Cuga] Pizza Seminar Series- Wednesday, August 17, 2011 - A message from Hari Areti

[Joe Grames]

Dear PEPPo Collaborator,

FYI - Erica will present PEPPo at this Wednesday's Graduate Pizza 
Seminar.  Details below...

-Joe

> Please RSVP by COB on Monday, August 15, 2011 to: jschatze at jlab.org
>
> Wednesday, August 17, 2011
> ****CC F113****
> 12:00-1:30pm
>
> *How are you doing Mr. PEPPo?*
>
> A new possible way to produce polarized positrons
>
>
> *Erica **Fanchini***
> Laboratoire de Physique Subatomique et Cosmologie
>
>
> Abstract:
> The accelerator facility of Jefferson Laboratory (JLab) is important 
> for its high polarized
>
> electron beam. With the upgrade it will be able to produce and 
> accelerate polarized electrons
>
> up to 12 GeV for nuclear studies.
>
> A future benefit could be represented by the availability of a new 
> source of particles: positrons.
>
> They will help to deeply investigate the hadronic structure and 
> especially the Generalized
>
> Parton Distributions (GPDs) dependence on spin and charge.
>
> From the idea to convert electrons into positrons via two--step 
> process, an amazing experiment
>
> is under construction at JLab: the PEPPo experiment.
>
> The Polarized Electrons for Polarized Positrons (PEPPo) experiment 
> takes advantage from the
>
> two polarization sensitive processes, bremsstrahlung and pair 
> production, to generate polarized
>
> positrons. The energy dependence of the polarization transfer from 6.3 
> MeV longitudinally
>
> polarized electrons to longitudinally polarized positrons is under 
> concern.
>
> Simulation, construction and characterization of the experimental 
> apparatus are progressing
>
> and we will discuss the current status of the operations.
>
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