Published August 10, 1964
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K+Λ photoproduction from hydrogen at 1200 MeV
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Abstract
Measurements of the angular distribution of the cross section for the photoproduction of the K+Λ system from hydrogen have been made in the c.m. angular interval from 15° to 85° at a photon energy of 1200 MeV. The reaction was identified by detecting the K+ mesons with a magnet spectrometer and a velocity selection system consisting of two Čerenkov counters. The angular distribution at this energy is very similar to that at lower energies in that it is peaked forward and is easily fit with a quadratic in cosθc.m.. Special emphasis was placed on the forward direction in an attempt to find evidence for the one-K-exchange pole. A Taylor-Moravcsik analysis of the data is presented, but the results are inconclusive.
Additional Information
©1964 The American Physical Society. Received 19 March 1964. The author is greatly indebted to Professor Robert L. Walker for his suggestions and useful criticism at all stages of the experiment and to Dr. D. Aitken for his assistance in much of the work. He wishes to thank S. Ecklund for help in accumulating part of the data, F. Wolverton for preliminary measurements on the focusing Cerenkov counter, and the staff and crew of the Synchrotron Laboratory for their cooperation. Thanks are also due to S. Hatsukade and H. J. Schnitzer for a helpful discussion of their theory.Files
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