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Article
Hard exclusive pion electroproduction at backward angles with CLAS.
Physics Letters B
Document Type
Article
Publication Date
1-1-2018
Disciplines
Abstract
We report on the first measurement of cross sections for exclusive deeply virtual pion electroproduction off the proton, , above the resonance region at backward pion center-of-mass angles. The ⁎-dependent cross sections were measured, from which we extracted three combinations of structure functions of the proton. Our results are compatible with calculations based on nucleon-to-pion transition distribution amplitudes (TDAs). These non-perturbative objects are defined as matrix elements of three-quark-light-cone-operators and characterize partonic correlations with a particular emphasis on baryon charge distribution inside a nucleon.
Published Citation
Park, K., M. Guidal, R. W. Gothe, B. Pire, K. Semenov-Tian-Shansky, J-M. Laget, K. P. Adhikari, Biselli A. et al [CLAS Collaboration]. "Hard exclusive pion electroproduction at backward angles with CLAS." Physics Letters B 780 (2018): 340-345. https://doi.org/10.1016/j.physletb.2018.03.026
DOI
10.1016/j.physletb.2018.03.026
Citation Information
K. Park, M. Guidal, R. W. Gothe, B. Pire, et al.. "Hard exclusive pion electroproduction at backward angles with CLAS." Physics Letters B Vol. 780 (2018) Available at: http://works.bepress.com/angela_biselli/135/
© 2018 The Author(s)
Published by Elsevier B.V. under CC License Attribution 4.0 International (CC BY 4.0)