Azimuthal asymmetries in Deeply Virtual Compton Scattering on an unpolarized target

2008 ◽  
Author(s):  
Dietmar Zeiler
Keyword(s):  
Compton Scattering ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
Unpolarized Target ◽  
Azimuthal Asymmetries

MEASUREMENTS WITH POLARIZED HADRONS

2004 ◽  
Vol 19 (07) ◽  
pp. 1089-1098
Author(s):  
T.-A. SHIBATA
Keyword(s):  
Compton Scattering ◽  
Spin Structure ◽  
Recent Progress ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
Nucleon Spin ◽  
Parton Distributions ◽  
Single Spin ◽  
Generalized Parton Distributions ◽  
Azimuthal Asymmetries

Recent progress in physics with polarized hadrons is described with the emphasis on the spin structure of the nucleon. The nucleon spin problem, which was discovered by EMC in 1988, is now being studied in various experiments. Flavor separation of the quark helicity distributions has been made. Recent observations of asymmetries in deeply virtual Compton scattering (DVCS) and exclusive meson productions provide possibilities to access the total angluar momentum carried by quarks in the framework of generalized parton distributions. Single spin azimuthal asymmetries observed in semi-inclusive measurements provide a new handle to determine the transverse quark distributions which are basic but have never been measured so far.

scholarly journals Deeply virtual Compton scattering off Helium nuclei with positron beams

2021 ◽  
Vol 57 (9) ◽  
Author(s):  
Sara Fucini ◽  
Mohammad Hattawy ◽  
Matteo Rinaldi ◽  
Sergio Scopetta
Keyword(s):  
Form Factor ◽  
Compton Scattering ◽  
Form Factors ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
Internal Target ◽  
The Real ◽  
Positron Beams ◽  
Unpolarized Target ◽  
Compton Form Factors

AbstractPositron initiated deeply virtual Compton scattering (DVCS) off $$^4$$ 4 He and $$^3$$ 3 He nuclei is described. The way the so-called $$d-$$ d - term could be obtained from the real part of the relevant Compton form factor is summarized, and the importance and novelty of this measurement is discussed. The measurements addressed for $$^3$$ 3 He targets could be very useful even in a standard unpolarized target setup, measuring beam spin and beam charge asymmetries only. The unpolarized beam charge asymmetries for DVCS off $$^3$$ 3 He and $$^4$$ 4 He are also estimated, at JLab kinematics and, for $$^4$$ 4 He, also at a configuration typical at the future Electron–Ion Collider. Incoherent DVCS processes, in particular the ones with tagging the internal target by measuring slow recoiling nuclei, and the unique possibility offered by positron beams for the investigation of Compton form factors of higher twist, are also briefly addressed.

scholarly journals Deconvolution problem of deeply virtual Compton scattering

2021 ◽  
Vol 103 (11) ◽  
Author(s):  
V. Bertone ◽  
H. Dutrieux ◽  
C. Mezrag ◽  
H. Moutarde ◽  
P. Sznajder
Keyword(s):  
Compton Scattering ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
Deconvolution Problem

scholarly journals Incoherent deeply virtual Compton scattering off He4

2020 ◽  
Vol 102 (6) ◽  
Author(s):  
Sara Fucini ◽  
Sergio Scopetta ◽  
Michele Viviani
Keyword(s):  
Compton Scattering ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering

scholarly journals Deeply virtual compton scattering

2000 ◽  
Vol 666-667 ◽  
pp. 234-243
Author(s):  
P.A.M. Guichon ◽  
M. Guidal ◽  
M. Vanderhaeghen
Keyword(s):  
Compton Scattering ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering
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