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SUMMARY:Deeply Virtual Exclusive Reactions with CLAS
DTSTART;VALUE=DATE-TIME:20100722T074000Z
DTEND;VALUE=DATE-TIME:20100722T075800Z
DTSTAMP;VALUE=DATE-TIME:20130524T123342Z
UID:indico-contribution-1116@cern.ch
DESCRIPTION:Speakers: Dr. KUBAROVSKY\, Valery (Jefferson Lab)\nDeeply Virt
 ual Exclusive Reactions with CLAS\nDeeply virtual exclusive reactions offe
 r an unique opportunity to study the structure of the nucleon at the parto
 n level as one varies both the size of the probe\, i.e. the photon virtual
 ity Q^2\, and the momentum transfer to the nucleon t. Such processes can r
 eveal much more information about the structure of the nucleon than either
  inclusive electroproduction (Q^2 only) or elastic form factors (t=-Q^2). 
 A dedicated experiments to study Deeply Virtual Compton Scattering (DVCS) 
 and Deeply Virtual Meson Production (DVMP) has been carried out in Hall B 
 at Jefferson Lab. DVCS  helicity-dependent and helicity–independent cros
 s sections\, as well as  beam  spin asymmetry\, and  cross sections and as
 ymmetries for the π0 and η exclusive electroproduction in a very wide ki
 nematic range of Q^2\, xB and t  have been measured with CLAS.  The prelim
 inary data will be presented for the wide kinematic range in Q^2=1-4.5 GeV
 ^2\, xB=0.1-0.5 and t up to 2 GeV^2. We view the work presented in this re
 port as leading into the program of the Jefferson Lab 12 GeV upgrade. The 
 increased energy and luminosity will allow us to make the analysis at much
  higher Q^2 and xB and perform Rosenbluth L/T separations of the cross sec
 tions.\n\nExclusive electroproduction of the rho+ meson on the proton at C
 LAS\nWe will present our latest results on rho+ exclusive electroproductio
 n on the proton measured with the CLAS detector of Jefferson Lab. We have 
 measured for the first time ever for this process the longitudinal and tra
 nsverse parts of the cross sections in the kinematic domain 0.15\n\nhttp:/
 /indico.cern.ch/contributionDisplay.py?contribId=1116&sessionId=46&confId=
 73513
LOCATION: Salle 251
URL:http://indico.cern.ch/contributionDisplay.py?contribId=1116&sessionId=
 46&confId=73513
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