Andrieu, B.
GAMMA P --> RHO0 P
Cross Section
[2.0, 5.0]
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Photoproduction of rho0 mesons and Delta-baryons in the reaction gamma p ---> p pi+ pi- at energies up to s**(1/2) = 2.6-GeV

Wu, C. ; Barth, J. ; Braun, W. ; et al.
Eur.Phys.J.A 23 (2005) 317-344, 2005.
Inspire Record 678798 DOI 10.17182/hepdata.43532

The photoproduction of ρ0-mesons and Δ-baryons at photon energies up to 2.6 GeV has been studied with the SAPHIR detector at the electron stretcher ELSA. Total and differential cross-sections were obt

29 data tables
Table 1

Total cross sections for (PI+ PI-) photoproduction from one run with 1.6 GeV electron beam.. Statistical errors only.

Table 2

Total cross section for (PI+ PI-) photoproduction from 4 runs. (3 with 2.8 GeV electron beam and 1 with 2.6 GeV).

Table 3

Differential cross section DSIG/DT for (PI+ PI-) photoproduction .

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Photoproduction of rho0 on hydrogen with tagged photons between 4 and 6 gev

Struczinski, W. ; Dittmann, P. ; Eckardt, V. ; et al.
Nucl.Phys.B 47 (1972) 436-444, 1972.
Inspire Record 84477 DOI 10.17182/hepdata.29528

We have measured the reaction γ p → p π + π − in the DESY 1 m Streamer Chamber. The dominant ϱ o production is analyzed in terms of various models.

6 data tables
Table 1

No description provided.

Table 2

FOR ALL EVENTS.

Table 3

FOR ALL TWO PION EVENTS.

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Photoproduction of ϱ0 and ω in γd interactions at 4.3 GeV

Eisenberg, Y. ; Haber, B. ; Kogan, E. ; et al.
Nucl.Phys.B 42 (1972) 349-368, 1972.
Inspire Record 67692 DOI 10.17182/hepdata.69930

Coherent photoproduction of ϱ 0 and ω at E γ = 4.3 GeV is observed. The ratios ϱ 0 d/ ω d and ϱ 0 d/ ϱ 0 p are discussed and compared with theoretical predictions. By comparing our data with total photoabsorption cross sections we determine the direct vector meson-photon coupling to be γ ϱ 2 /4 π = 0.29 ± 0.06. With this value we find the VDM relations between photoproduction and Compton scattering well satisfied.

7 data tables
Table 3

No description provided.

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