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A comprehensive set of 4He(g,n) absolute cross-section measurements has beenperformed at MAX-lab in Lund, Sweden. Tagged photons from 23 < Eg < 70 MeV weredirected toward a liquid 4He target, and neutrons were identified usingpulse-shape discrimination and the Time-of-flight Technique in twoliquid-scintillator detector arrays. Seven-point angular distributions havebeen measured for fourteen photon energies. The results have been subjected tocomplementary Transition-coefficient and Legendre-coefficient analyses. Theresults are also compared to experimental data measured at comparable photonenergies as well as Recoil-Corrected Continuum Shell Model, Resonating GroupMethod, and Effective Interaction Hyperspherical-Harmonic Expansioncalculations. For photon energies below 29 MeV, the angle-integrated data aresignificantly larger than the values recommended by Calarco, Berman, andDonnelly in 1983.Comment: 16 pages, 14 figures, some more revisions, submitted to Physical  Review

physical review. c. nuclear physics/physical review. c, nuclear physics

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