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Charged pion form factor betweenQ2=0.60and2.45 GeV2. II. Determination of, and results for, the pion form factor
- Source :
- Physical Review C. 78
- Publication Year :
- 2008
- Publisher :
- American Physical Society (APS), 2008.
-
Abstract
- Cross sections for the reaction {sup 1}H(e,e'{Pi}{sup +})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{sup 2} = 0.60 to 2.45 GeV{sup 2} 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}{sub L},{sigma}{sub T}, {sigma}{sub LT}, and {sigma}{sub 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{sup 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 {sup 1}H(e,e'{Pi}{sup +})n.
- Subjects :
- Nuclear reaction
Physics
Nuclear and High Energy Physics
Particle physics
Bethe–Salpeter equation
010308 nuclear & particles physics
Hadron
Lattice field theory
Magnetic monopole
Form factor (quantum field theory)
Sigma
Particle accelerator
7. Clean energy
01 natural sciences
Charged particle
law.invention
Nuclear physics
Pion
law
Charge radius
0103 physical sciences
Neutron
Invariant mass
Nucleon
010306 general physics
Subjects
Details
- ISSN :
- 1089490X and 05562813
- Volume :
- 78
- Database :
- OpenAIRE
- Journal :
- Physical Review C
- Accession number :
- edsair.doi.dedup.....1e9ec9043dfe92e8adbcd602100220d2
- Full Text :
- https://doi.org/10.1103/physrevc.78.045203