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Journal articles

Parity violating electron deuteron scattering and the proton's neutral weak axial vector form-factor

Abstract : 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.
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http://hal.in2p3.fr/in2p3-00021594
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Submitted on : Tuesday, April 6, 2004 - 1:56:19 PM
Last modification on : Wednesday, December 15, 2021 - 2:49:19 PM
Long-term archiving on: : Tuesday, March 30, 2010 - 6:26:25 PM

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T.M. Ito, T. Averett, D. Barkhuff, Guillaume Batigne, D.H. Beck, et al.. Parity violating electron deuteron scattering and the proton's neutral weak axial vector form-factor. Physical Review Letters, American Physical Society, 2004, 92, pp.102003. ⟨10.1103/PhysRevLett.92.102003⟩. ⟨in2p3-00021594⟩

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