A nearly monochromatic high-energy photon beam produced by Compton backscattering of ruby laser light has been used to study photoproduction in a hydrogen bubble chamber. The total hadronic γp cross sections at 1.44, 2.8, and 4.7 GeV are found to be 145.1 ±{} 5.7, 131.3 ±{} 4.3, and 124.2 ±{} 3.9 {μ}b, respectively. Partial cross sections are presented also.
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Ballam et al. (1969) studied this question.
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