Measurement of the partial cross sections σ<inf>tT</inf>, σ<inf>lT</inf>, and (σ<inf>T</inf>+ σ<inf>l</inf>) of the 1H(e,e<sup>′</sup>π<sup>+</sup>)n reaction in the Δ(1232) resonance
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Journal ArticleDate
2011-08-26Author
Kirkpatrick, JMSparveris, NF
Nakagawa, I
Bernstein, AM
Alarcon, R
Bertozzi, W
Botto, T
Bourgeois, P
Calarco, J
Casagrande, F
Distler, MO
Dow, K
Farkondeh, M
Georgakopoulos, S
Gilad, S
Hicks, R
Holtrop, A
Hotta, A
Jiang, X
Karabarbounis, A
Kowalski, S
Milner, R
Miskimen, R
Papanicolas, CN
Sarty, AJ
Sato, Y
Širca, S
Shaw, J
Six, E
Stave, S
Stiliaris, E
Tamae, T
Tsentalivich, G
Tschalaer, C
Turchinetz, W
Zhou, ZL
Zwart, T
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http://hdl.handle.net/20.500.12613/6030
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10.1103/PhysRevC.84.028201Abstract
We report precision 1H(e,e′π+)n measurements in the Δ(1232) resonance at Q2=0.127(GeV/c)2 obtained at the MIT-Bates out-of-plane scattering facility. These are the lowest, but nonzero, Q2 measurements in the π+ 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. © 2011 American Physical Society.Citation to related work
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http://dx.doi.org/10.34944/dspace/6012