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gamma*N -> N* (1520) transition form factors in light cone QCD sum rules
Date
2014-11-25
Author
Alıyev, Tahmasıb
Savcı, Mustafa
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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The gamma*N -> N* (1520) reaction is studied in the framework of the light cone QCD sum rules method. The sum rules for the multipole form factors, namely, for the magnetic dipole G(M)(Q(2)), electric quadrupole G(E)(Q(2)), and Coulomb quadrupole G(C)(Q(2)) [i.e., form factors responsible for the gamma*N -> N* (1520) transition] are derived. Using these sum rules, the helicity amplitudes are presented as combinations of these multipole form factors, and their Q(2) dependences are studied. We compare our results on the helicity amplitudes with those of the spectator model predictions and with the existing experimental data.
Subject Keywords
Nucleon
,
Region
URI
https://hdl.handle.net/11511/38160
Journal
PHYSICAL REVIEW D
DOI
https://doi.org/10.1103/physrevd.90.096012
Collections
Department of Physics, Article