The A4 experiment

Baunack, S. (2012) The A4 experiment. Il nuovo cimento C, 35 (4). pp. 11-15. ISSN 1826-9885

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The A4 Collaboration at the electron accelerator facility MAMI measures parity-violating asymmetries in (quasi-)elastic electron scattering off hydrogen or deuterium to determine the strangeness contribution to the vector form factors of the proton. The control of systematic effects like helicity correlated beam fluctuations and the determination of the electron beam polarization are crucial issues. Recently, backward angle measurements at Q2 = 0.23 GeV2 with a deuterium target and forward angle measurements with a hydrogen target at Q2 = 0.62 GeV2 have been analyzed. The preliminary results are presented here.

Item Type: Article
Uncontrolled Keywords: Electroweak interactions ; Charge conjugation, parity, time reversal, and other discrete symmetries ; Electromagnetic form factors ; Protons and neutrons
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 21 Apr 2020 17:41
Last Modified: 21 Apr 2020 17:41

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