Parity-violating electron deuteron scattering and the proton's neutral weak axial vector form factor
Ito, T. M.; Averett, T; Barkhuff, D; Batigne, G; Beck, D. H.; Beise, E. J.; Blake, A; Breuer, H; Carr, R; Clasie, B; Covrig, S; Danagoulian, A; Dodson, G; Dow, K; Dutta, D; Farkhondeh, M; Filippone, B. W.; Franklin, W; Furget, C; Gao, H; Gao, J; Gustafsson, K; Hannelius, L; Hasty, R; Hawthorne-Allen, A. M.; Herda, M. C.; Jones, C. E.; King, P; Korsch, W; Kowalski, S; Kox, S; Kramer, K; Lee, P; Liu, J; Martin, J. W.; McKeown, R. D.; Mueller, B; Pitt, M. L.; Plaster, B; Quemener, G; Real, J. S.; Ritter, J; Roche, J; Savu, V; Schiavilla, R; Seely, J; Spayde, D; Suleiman, R; Taylor, S; Tieulent, R; Tipton, B; Tsentalovich, E; Wells, S. P.; Yang, B; Yuan, J; Yun, J; Zwart, T
2004

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Abstract

We report on a new measurement of the parity-violating asymmetry in quasielastic electron scattering from the deuteron at backward angles at Q(2)=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 (syst) ppm is consistent with theoretical predictions. We also report on updated results of the previous experiment at Q(2)=0.091 (GeV/c)(2), which are also consistent with theoretical predictions.

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Title Parity-violating electron deuteron scattering and the proton's neutral weak axial vector form factor
Author(s) Ito, T. M. ; Averett, T ; Barkhuff, D ; Batigne, G ; Beck, D. H. ; Beise, E. J. ; Blake, A ; Breuer, H ; Carr, R ; Clasie, B ; Covrig, S ; Danagoulian, A ; Dodson, G ; Dow, K ; Dutta, D ; Farkhondeh, M ; Filippone, B. W. ; Franklin, W ; Furget, C ; Gao, H ; Gao, J ; Gustafsson, K ; Hannelius, L ; Hasty, R ; Hawthorne-Allen, A. M. ; Herda, M. C. ; Jones, C. E. ; King, P ; Korsch, W ; Kowalski, S ; Kox, S ; Kramer, K ; Lee, P ; Liu, J ; Martin, J. W. ; McKeown, R. D. ; Mueller, B ; Pitt, M. L. ; Plaster, B ; Quemener, G ; Real, J. S. ; Ritter, J ; Roche, J ; Savu, V ; Schiavilla, R ; Seely, J ; Spayde, D ; Suleiman, R ; Taylor, S ; Tieulent, R ; Tipton, B ; Tsentalovich, E ; Wells, S. P. ; Yang, B ; Yuan, J ; Yun, J ; Zwart, T
Published in Physical Review Letters
Volume 92
Issue 10
Pages 102003
Date 2004
Keywords
DOI https://doi.org/10.1103/PhysRevLett.92.102003
Laboratories LMIS1
Record Appears in Scientific production and competences > STI - School of Engineering > IEM - Institut d'Electricité et de Microtechnique > LMIS1 - Microsystems Laboratory 1
Peer-reviewed publications
Work outside EPFL
Journal Articles
Published
Record creation date 2008-11-07

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