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The first measurement of the neutron electromagnetic form-factors in the timelike region

A. Antonelli
(
- Frascati
)
,
R. Baldini
(
- Frascati
)
,
P. Benasi
(
- Ferrara U. and
- INFN, Ferrara
)
,
M. Bertani
(
- Ferrara U. and
- INFN, Ferrara
)
,
M.E. Biagini
(
- Frascati
)

1998

33 pages

Published in:

Nucl.Phys.B 517 (1998) 3-35

DOI:

10.1016/S0550-3213(98)00083-2

reference search259 citations

Citations per year

Abstract: (Elsevier)

The electromagnetic form factors of the neutron in the time-like region have been measured for the first time, from the threshold up to q 2 ⋟ 6 GeV 2 . The neutron magnetic form factor turns out to be larger than the proton one; the angular distribution suggests that for the neutron, at variance with the proton case, electric and magnetic form factors could be different. Further measurements are also reported, concerning the proton form factors and the Σ Σ production, together with the multihadronic cross section and the J / Γ branching ratio into n n .

13.40.G
28.20
Neutron
Form factors
Time-like
electron positron: colliding beams
electron positron: annihilation
nucleon: pair production
n: form factor
p: form factor

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Figures(0)

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