Elsevier

Physics Letters B

Volume 41, Issue 2, 18 September 1972, Pages 216-220
Physics Letters B

Axial-vector form-factor of the nucleon from a coincidence experiment on electroproduction at threshold

https://doi.org/10.1016/0370-2693(72)90465-0Get rights and content

Abstract

The electroproduction cross-section of π+ at threshold has been measured by a coincidence experiment for a momentum transfer |k2| = 0.16−0.24 (GeV/c)2.

From these data the isovector axial form factor GA of the nucleon is derived.

References (13)

  • G. Furlan et al.

    Nuovo Cim.

    (1969)
    G. Furlan et al.

    Nuovo Cim.

    (1970)
  • E. Amaldi

    Nuovo Cim.

    (1970)
  • E. Amaldi

    Nota Interna della Sezione di Roma dell'INFN n. 229

    (1969)
  • Y. Nambu et al.

    Phys. Rev.

    (1962)
    Y. Nambu et al.

    Phys. Rev.

    (1962)
  • A.M. Gleeson et al.

    Phys. Rev.

    (1968)
  • S. Fubini et al.

    Ann. of Phys. (N.Y.)

    (1968)
There are more references available in the full text version of this article.

Cited by (55)

  • Measurement of the p(e,e<sup>′</sup>π<sup>+</sup>)n reaction close to threshold and at low Q<sup>2</sup>

    2017, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Citation Excerpt :

    The earliest charged pion electroproduction experiments were carried out in the 1970s, but their results had large statistical and systematic uncertainties. They can be divided into single arm experiments as in Stanford (SLAC) [11] and Kharkov [12], or double arm coincidence electron and neutron experiments as in Frascati [13], Hamburg (DESY) [14,15] and Daresbury [16,17]. From the 1990s and onwards, electron and pion coincidence experiments were performed in Saclay [18], JLab (CLAS) [19] and in Mainz (MAMI) [20,21].

  • Electroweak form factors

    2002, Nuclear Physics B - Proceedings Supplements
  • A measurement of the axial form factor of the nucleon by the p(e,e′π<sup>+</sup>) n reaction at W = 1125 MeV

    1999, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
View all citing articles on Scopus
View full text