Parity violating electron deuteron scattering and the proton's neutral weak axial vector form-factor
Oct, 20035 pages
Published in:
- Phys.Rev.Lett. 92 (2004) 102003
e-Print:
- nucl-ex/0310001 [nucl-ex]
Report number:
- JLAB-THY-04-46
Experiments:
Citations per year
Abstract: (arXiv)
We report on a new measurement of the parity-violating asymmetry in quasielastic electron scattering from the deuteron at backward angles at Q2= 0.038 (GeV/c)2. This quantity provides a determination of the neutral weak axial vector form factor of the nucleon, which can potentially receive large electroweak corrections. The measured asymmetry A=-3.51 +/- 0.57(stat) +/- 0.58(sys)ppm is consistent with theoretical predictions. We also report on updated results of the previous experiment at Q2=0.091 (GeV/c)2, which are also consistent with theoretical predictions.Note:
- 4 pages, 2 figures, submitted to Phys. Rev. Lett
- electron deuteron: inelastic scattering
- electron: polarized beam
- polarization: longitudinal
- backscatter
- asymmetry: time dependence
- parity: violation
- nucleon: form factor
- form factor: axial-vector
- radiative correction
- Cherenkov counter: experimental results
References(22)
Figures(0)