Journal
PHYSICAL REVIEW C
Volume 78, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.78.045202
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Funding
- U. S. Department of Energy [DE-AC05-84150]
- U. S. National Science Foundation
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- NATO, FOM (Netherlands)
- KOSEF (South Korea)
- Direct For Mathematical & Physical Scien
- Division Of Physics [753777] Funding Source: National Science Foundation
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Cross sections for the reaction H-1(e,e(')pi(+))n were measured in Hall C at Thomas Jefferson National Accelerator Facility (JLab) using the high-intensity Continuous Electron Beam Accelerator Facility (CEBAF) to determine the charged pion form factor. Data were taken for central four-momentum transfers ranging from Q(2)=0.60 to 2.45 GeV2 at an invariant mass of the virtual photon-nucleon system of W=1.95 and 2.22 GeV. The measured cross sections were separated into the four structure functions sigma(L),sigma(T),sigma(LT), and sigma(TT). The various parts of the experimental setup and the analysis steps are described in detail, including the calibrations and systematic studies, which were needed to obtain high-precision results. The different types of systematic uncertainties are also discussed. The results for the separated cross sections as a function of the Mandelstam variable t at the different values of Q(2) are presented. Some global features of the data are discussed, and the data are compared with the results of some model calculations for the reaction H-1(e,e(')pi(+))n.
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