Bekrenev, V.
Electron production
DSIG/DT
[1.0, 2.0]
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Study of photoproduction on hydrogen in a streamer chamber with tagged photons for 1.6 GeV $ < E_\gamma <$ 6.3 GeV Topological and reaction cross sections

The Aachen-Hamburg-Heidelberg-Munich collaboration Struczinski, W. ; Dittmann, P. ; Eckardt, V. ; et al.
Nucl.Phys.B 108 (1976) 45-74, 1976.
Inspire Record 100089 DOI 10.17182/hepdata.35779

We have studied photoproduction using a 1 m streamer chamber at DESY and a tagged photon beam with an energy range of 1.6 GeV < E γ < 6.3 GeV. We analysed approximately 30 000 events and report topological, channel and resonance production cross sections for a large number of reactions with three and five outgoing charged particles.

29 data tables
Table 1

CHANNEL CROSS SECTIONS FOR 3, 5 AND 7 PRONG REACTIONS.

Table 2

'PARAMETRIZATION'.

Table 3

'INTERFERENCE'.

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Electromagnetic form-factors of the proton at squared four momentum transfers between 10-fm**-2 and 50 fm**-2

Berger, C ; Burkert, V. ; Knop, G. ; et al.
Phys.Lett.B 35 (1971) 87-89, 1971.
Inspire Record 69362 DOI 10.17182/hepdata.28478

Electron-proton elastic scattering cross sections have been measured to determine the proton electromagnetic form factors at squared four-momentum transfers q 2 between 10 and 50 fm −2 . At these values of q 2 we measured angular distributions between 25° and 110° and in addition at 25° and 35° cross sections for q 2 from 2 to 20 fm −2 using the external electron beam of the Bonn 2.5 GeV electron synchrotron. Our results confirm deviations from the scaling law.

15 data tables
Table 1

Axis error includes +- 2/2 contribution (NORMALIZATION ERROR).

Table 2

Axis error includes +- 2/2 contribution (NORMALIZATION ERROR).

Table 3

Axis error includes +- 2/2 contribution (NORMALIZATION ERROR).

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