Bloom, Elliott D.
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Total and Partial gamma d, gamma n and gamma p Cross-Sections at 7.5-GeV

Alexander, G. ; Gandsman, J. ; Jacobs, L.D. ; et al.
Nucl.Phys.B 68 (1974) 1-11, 1974.
Inspire Record 94509 DOI 10.17182/hepdata.32388

Total and partial γd, γp and γn reactions were studied in the SLAC 82 inch deuterium-filled bubble chamber, which was exposed to a linearly polarized photon beam at an energy of 7.5 GeV. We report total, topological and channel cross sections for these reactions. The γn average charge multiplicity was found to be one unit of charge less than the γp average charge multiplicity. The isoscolar-isovector interference term as calculated by comparing the γp charge symmetric reactions is found to be small.

3 data tables
Table 1

No description provided.

Table 2

CHARGE MULTIPLICITY TOPOLOGICAL CROSS SECTIONS.

Table 3

No description provided.


Experimental Study of Nuclear Shadowing in Photoproduction

Michalowski, S. ; Andrews, D. ; Eickmeyer, J. ; et al.
Phys.Rev.Lett. 39 (1977) 737-740, 1977.
Inspire Record 124559 DOI 10.17182/hepdata.20970

The total cross section for hadron production by high-energy photons has been measured from a number of nuclei ranging from hydrogen to uranium. Some shadowing is observed at a level considerably less than predicted by conventional vector-meson dominance but consistent with a modified theory. The energy dependence predicted by vectormeson dominance is observed. The shadowing in heavy nuclei shows a smooth transition from electroproduction to photoproduction.

1 data table
Table 1

No description provided.