Measurement of the partial cross sections σ[subscript TT], σ[subscript LT], and (σ[subscript T] + ɛσ[subscript L]) of the [superscript 1]H(e, e′π[subscript +])n reaction in the Δ(1232) resonance
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Kirkpatrick-2011-Measurement of the partial cross sections.pdf
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Author(s)
Nakagawa, I.
Bernstein, Aron M.
Bertozzi, William
Botto, Tancredi
Casagrande, F.
Dow, Karen A.
Farkhondeh, Manouchehr
Gilad, Shalev
Jiang, X.
Kowalski, Stanley B.
Date Issued
August 2011
Journal
Physical Review C
Publisher
American Physical Society
Citation
Kirkpatrick, J. et al. “Measurement of the Partial Cross Sections σ_{TT}, σ_{LT}, and (σ_{T}+ ɛσ_{L}) of the ^{1}H(e,e^{′}π^{+})n Reaction in the Δ(1232) Resonance.” Physical Review C 84.2 (2011). ©2011 American Physical Society
Version
Final published version
Abstract
We report precision [superscript 1]H(e, e′π[superscript +])n measurements in the Δ(1232) resonance at Q[superscript 2]=0.127(GeV/c)[superscript 2] obtained at the MIT-Bates out-of-plane scattering facility. These are the lowest, but nonzero, Q[superscript 2] measurements in the π[superscript +] channel. The data offer tests of the theoretical calculations, particularly of the background amplitude contributions. The chiral effective field theory and Sato-Lee model calculations are not in agreement with this experiment.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevC.84.028201
