Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • PACS: 14.20.Dh Properties of specific particles: Protons and neutrons – 24.70.+s Nuclear reactions: Polarization phenomena in reactions – 13.40.Gp Specific reactions and phenomenology: Electromagnetic form factors – 25.10.+s Nuclear reactions involving few–nucleon systems – 25.30.Fj Nuclear reactions: Inelastic electron scattering to continuum  (1)
Material
Years
Keywords
  • 1
    ISSN: 1434-601X
    Keywords: PACS: 14.20.Dh Properties of specific particles: Protons and neutrons – 24.70.+s Nuclear reactions: Polarization phenomena in reactions – 13.40.Gp Specific reactions and phenomenology: Electromagnetic form factors – 25.10.+s Nuclear reactions involving few–nucleon systems – 25.30.Fj Nuclear reactions: Inelastic electron scattering to continuum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The electric form factor of the neutron GEn has been determined in double polarized exclusive 3 He(e,e'n) scattering in quasi–elastic kinematics by measuring asymmetries A ⊥, A ∥ of the cross section with respect to helicity reversal of the electron, with the nuclear spin being oriented perpendicular to the momentum transfer q in case of A⊥ and parallel in case of A∥. The experiment was performed at the 855 MeV c. w. microtron MAMI at Mainz. The degree of polarization of the electron beam and of the gaseous 3 He target were each about 50%. Scattered electrons and neutrons were detected in coincidence by detector arrays covering large solid angles. Quasi–elastic scattering events were reconstructed from the measured electron scattering angles ϑe, φe and the neutron momentum vector p n ′ in the plane wave impulse approximation. We obtain the result 〈G En〉(0.27 〈 Q2c2/GeV2 〈 0.5)= 0.0334 ± 0.0033stat± 0.0028syst which is averaged over the indicated range of Q 2, the squared momentum transfer. This G En value is significantly smaller than measured from the D(e,e'n) reaction under similar kinematical conditions. To what extent final state interactions in 3He quench the G En result is subject of calculations currently in progress elsewhere.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...