Difference between revisions of "DVCS"

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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 measurements at fixed Q<sup>2</sup>, x<sub>Bj</sub> and three different beam energies will be measured. 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|<sub>2</sub>)  term at all three Q<sub>2</sub> values of the previous experiments. Rosenbluth L/T separations of the ep→ epπ<sup>0</sup> cross section, which is crucial to testing that factorization in this channel will be obtained. A key element of the experiments is the EM calorimeter that is used to detect the photon while the Hall A HRS is used to detect the scattered electron.
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'''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]]
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*for expert information: go to [[https://hallaweb.jlab.org/wiki/index.php/DVCS3 DVCS3 wiki ]]
  
  
'''The upcoming data taking is scheduled from September 27, 2010 to December 28, 2010.
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For the 6 GeV DVCS wiki, go to [[DVCS 2 (Obsolete) ]].
'''
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[[Image:dvcs_cad.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">[[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">[http://hallaweb.jlab.org/experiment/DVCS/documents/misc/runplan_27may2010.pdf [Global Run Plan]]</td></tr>
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<tr><td bgcolor="#e0e0f0">[[Daily Run Plan ]]</td></tr>
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</table>
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Latest revision as of 16:10, 11 November 2014

For the 12 GeV DVCS experiment

  • for shift related information (including the howto): go to [Shift portal]
  • for expert information: go to [DVCS3 wiki ]


For the 6 GeV DVCS wiki, go to DVCS 2 (Obsolete) .