Electroproduction of pions near the $\Delta(1236)$ isobar and the form-factor $G^*_M(q^2)$ of the $({\gamma} N\Delta)$ vertex - INSPIRE

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Electroproduction of pions near the $\Delta(1236)$ isobar and the form-factor $G^*_M(q^2)$ of the $({\gamma} N\Delta)$ vertex

W. Bartel
(
- DESY and
- Hamburg U.
)
,
B. Dudelzak
(
- DESY and
- Hamburg U.
)
,
H. Krehbiel
(
- DESY and
- Hamburg U.
)
,
J. McElroy
(
- DESY and
- Hamburg U.
)
,
U. Meyer-Berkhout
(
- DESY and
- Hamburg U.
)

Oct, 1968

18 pages

Published in:

Phys.Lett.B 28 (1968) 148-151

Published: Oct, 1968

DOI:

10.1016/0370-2693(68)90155-X

Report number:

DESY-68-53

View in:

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Abstract: (Elsevier)

The cross section for inelastic electron-proton scattering was measured at incident electron energies of 1.5 to 6 GeV by magnetic analysis of the scattered electrons at angles between 10° and 35°. For invariant masses of the hardonic final state W ⩽ 1.4 GeV. the measured spectra are compared with theoretical predictions for electroproduction of the Δ(1236) isobar. The magnetic dipole transition form factor G ∗ M ( q 2 ) of the (γ N Δ)-vertex is derived for momentum transfers q 2 = 0.2 − 2.34 (GeV/ c ) 2 ard found to decrease more rapidly with q 2 than the proton form factors.

References(16)

Figures(0)

The transverse and longitudinal cross sections for electroproduction of pions near the Δ(1236)-isobar

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,
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(
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)

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