Measurement of the Partial Cross Sections s(TT), s(LT) and [s(T)+epsilon*s(L)] of the p(e,e' pi+)n Reaction in the Delta(1232) Resonance

Abstract

We report new precision p(e,e' pi+})n measurements in the Delta(1232) resonance at Q2 = 0.127(GeV/c)2 obtained at the MIT-Bates Out-Of-Plane scattering facility. These are the lowest, but non-zero, Q2 measurements in the pi+ channel. The data offer new 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.

References in corpus (15)

• Unitary Isobar Model - MAID2007
• Electromagnetic excitation of the Delta(1232)-resonance
• Electroexcitation of nucleon resonances from CLAS data on single pion electroproduction
• Investigation of the conjectured nucleon deformation at low momentum transfer
• Measurement of the N to Delta(1232) Transition at High Momentum Transfer by pi0 Electroproduction
• Extraction and Interpretation of gamma N --> Delta Form Factors within a Dynamical Model
• Electromagnetic Nucleon-to-Delta Transition in Chiral Effective-Field Theory
• Single pi+ Electroproduction on the Proton in the First and Second Resonance Regions at 0.25GeV^2 < Q^2 < 0.65GeV^2 Using CLAS
• Recoil Polarization for Delta Excitation in Pion Electroproduction
• Cross sections and beam asymmetries for $\vev{e}p \to enπ^+$ in the nucleon resonance region for $1.7\le Q^2\le 4.5(GeV{)}^2$
• Lowest Q^2 Measurement of the gamma*p -> Delta Reaction: Probing the Pionic Contribution
• Measurement of the Polarized Structure Function ${\sigma }_{L{T}^{\prime }}$ for $p(\vec{e},e^{\prime }{\pi }^{+})n$ in the $\Delta (1232)$ Resonance Region
• Determination of quadrupole strengths in the gamma*p-->Delta(1232) transition at Q2= 0.20 (GeV/c)2
• Measurements of the gamma*p->Delta Reaction At Low Q^2: Probing the Mesonic Contribution
• Virtual Compton Scattering measurements in the ${\gamma }^{\ast }N\to \Delta$ transition

Cited by in corpus (3)

• Electroexcitation of the ${\Delta }^{+}(1232)$ at low momentum transfer
• Two-Photon-Exchange Effects and $\Delta (1232)$ Deformation
• Pion electroproduction measurements in the nucleon resonance region