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A Comparative Study of rho0 Photoproduced on D, N and P at 7.5-GeV

Alexander, G. ; Benary, O. ; Gandsman, J. ; et al.

Nucl.Phys.B 104 (1976) 397-412, 1976.

Inspire Record 2982 DOI 10.17182/hepdata.35986

A 7.5 GeV linearly polarized photon beam was used to study ϱ 0 production on d, n and p in the SLAC 82 inch bubble chamber. The production of ϱ 0 is found to proceed mainly via t -channel natural parity exchange and to conserve s -channel c.m.s. helicity for small t . The I = 1 contribution to the γ N → ϱ 0 t -channel amplitude is found to be small at 7.5 GeV.

6 data tables

Table 1

ERRORS QUOTED INCLUDE BOTH STATISTICAL AND SYSTEMATIC UNCERTAINTIES.

Table 2

THE FOURTH REACTION IS THE SUM OF THE FIRST THREE, NAMELY THE CLOSURE DIFFERENTIAL CROSS SECTION.

Table 3

DIPION EVENTS IN THE RHO0 MASS REGION (600 TO 880 MEV).