Difference between revisions of "Working Groups"

From pwgwiki
Jump to navigation Jump to search
 
(6 intermediate revisions by 2 users not shown)
Line 1: Line 1:
−
;Working Groups
 
  
−
=== <strong>Interference Physics</strong> ===
+
=== <strong>Nuclear Physics</strong> ===
−
''Coordinators: John Arrington (johna@anl.org), Charles Hyde (hyde@jlab.org)''
 
  
−
* [[Interference Physics Sub-Group]]
+
''Coordinator: Eric Voutier (voutier@ipno.in2p3.fr)''
  
−
=== <strong>Charged Current Physics</strong> ===
+
* [[e+ @ JLab Sub-Group]]
  
−
''Coordinators: Yulia Furletova (yulia@jlab.org), Wally Melnitchouk (wmelnitc@jlab.org)''
+
* [[e+ White Paper Sub-Group]]
  
−
* [[Charged Current Physics Sub-Group]]
+
* [[e+ @ eRHIC Sub-Group]]
  
−
=== <strong>Test of the Standard Model</strong> ===
+
=== <strong>Positron Source and Beam Physics</strong> ===
  
−
''Coordinators: Marco Battaglieri (battaglieri@ge.infn.it), Xiaochao Zheng (xiaochao@virginia.edu)''
+
''Coordinator: Joe Grames (grames@jlab.org)''
  
−
* [[Test of the Standard Model Sub-Group]]
+
* [[Positron Source and Beam Physics Sub-Group]]
  
−
=== <strong>Positron Applications</strong> ===
+
=== <strong>Physics with Low Energy Positron Beams</strong> ===
  
−
''Coordinators: Tony Forest (foretony@isu.edu), Farida Selim (faselim@bgsu.edu)''
+
''Coordinator: Farida Selim (faselim@bgsu.edu)''
  
−
Positron annihilation spectroscopy (PAS) is a well-known technique for investigating the structural properties of materials. Because of the purity of the <math>2 \gamma</math> signal produced from the annihilation of positrons with atomic electrons, this technique is a very sensitive probe of material defects and constitutes an accurate method for the measurement of the momentum distribution of electrons. Nevertheless, the globally poor availability of intense positron beams at low energies (1-1000 keV) percludes efficient use of PAS. An MeV electron accelerator production of positrons, like that used in the PEPPo experiment, can easily provide two orders of magnitude greater beam intensities than the most powerful nuclear reactor based facility. Adding controlled and flexible polarization capabilities with the PEPPo technique at accelerator facilities, may constitute a technological breakthrough for PAS and help address the lack of low energy positron research facilities world-wide.
+
* [[Low Energy Positrons Sub-Group]]
−
 
 
−
* [[Positron Applications Sub-Group]]
 
−
 
 
−
=== <strong>Positron Source and Beam Physics</strong> ===
 
−
 
 
−
''Coordinators: Joe Grames (grames@jlab.org), Vasiliy Morozov (morozov@jlab.org)''
 
−
 
 
−
The efficient transfer of polarization from electrons to positrons (>80%) has been demonstrated by the PEPPo experiment and offers a new pathway to use low energy polarized electron beams (10-100 MeV) to promptly produce polarized positrons suitable for acceleration. A challenging aspect of the positron injector is the optimization required to achieve the desired beam characteristics, such as beam intensity, transverse emittance (size), bunch length and energy spread (longitudinal emittance) necessary and be well-mated to the accelerator design (e.g. 12 GeV CEBAF, LERF, JLEIC). A core activity of this sub-group is to evaluate the user requirements, accelerator integration and assess the merits and risks of different schemes appropriate for JLab, in order to summarize and recommend the R&D needed for a successful positron physics program.
 
−
 
 
−
* [[Positron Source and Beam Physics Sub-Group]]
 

Latest revision as of 05:27, 21 February 2020

Nuclear Physics

Coordinator: Eric Voutier (voutier@ipno.in2p3.fr)

Positron Source and Beam Physics

Coordinator: Joe Grames (grames@jlab.org)

Physics with Low Energy Positron Beams

Coordinator: Farida Selim (faselim@bgsu.edu)

Retrieved from "https://wiki-2023.jlab.org/pwgwiki/index.php?title=Working_Groups&oldid=729"