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| − | The DVCS2 experiments at Jefferson Lab (LH2: E07-007, [http://hallaweb.jlab.org/experiment/DVCS/documents/phys_prog/E07007_proposal.pdf], LD2: E08-025 [http://hallaweb.jlab.org/collab/PAC/PAC33/PR-08-025:nDVCS.pdf]) will measure the absolute cross sections of electro-production of photons in the deep exclusive regime as part of the GPD program. These experiments build on the success of our first round of data taking ([http://www.slac.stanford.edu/spires/find/hep/www?key=6856306], [http://www.slac.stanford.edu/spires/find/hep/www?irn=7325622]). DVCS cross sections will be measured at fixed Q<sup>2</sup>, x<sub>Bj</sub> and three different beam energies. The kinematic structure of the ep→ epγ cross section will allow to separate the different amplitudes contributing to the total cross section (eg. BH*DVCS interference from the pure |DVCS|<sup>2</sup> term) at all three Q<sup>2</sup> values of the previous experiments. We will use these data to perform a Rosenbluth L/T separations of the ep→ epπ<sup>0</sup> cross section. This π<sup>0</sup> result is crucial to test if factorization in this channel can be obtained at these energies. The basic experimental setup elements of the experiments are the dedicated EM calorimeter that is used to detect the photon and the left Hall A HRS that is used to detect the scattered electron. The upcoming data taking is scheduled from September 27, 2010 to December 23, 2010.
| + | '''For the 12 GeV DVCS experiment''' |
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| + | *for shift related information (including the howto): go to [[https://hallaweb.jlab.org/wiki/index.php/Instructions_for_shift_takers Shift portal]] |
| | + | *for expert information: go to [[https://hallaweb.jlab.org/wiki/index.php/DVCS3 DVCS3 wiki ]] |
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| − | '''News:''' The [http://hallaweb.jlab.org/experiment/DVCS/dvcs2-shifts shift schedule] is now online and open for shift sign-up.
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| − | | + | For the 6 GeV DVCS wiki, go to [[DVCS 2 (Obsolete) ]]. |
| − | [[Image:DVCS2.jpg|right|500px]]
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| − | <table align="left" cellpadding="3">
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| − | <tr><td bgcolor="#e0e0f0">'''Contents'''</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[[Shift safety documents]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[[People]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[[DVCS weekly meetings, Summer 2010]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[[DVCS TO DO list, Summer 2010]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[[DVCS how to]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[http://hallaweb.jlab.org/experiment/DVCS/[The DVCS/Hall A web page]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[https://hallaweb.jlab.org/wiki/images/7/79/DVCS2_Runplan_August25_2010.pdf [Global Run Plan]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[[Daily Run Plan ]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[[Pending issues]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[[Task assignement]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[[Setup as installed]]</td></tr>
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| − | <tr><td bgcolor="#e0e0f0">[[DVCS DAQ HRS setup]]</td></tr>
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| − | </table>
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