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π-/π+ ratio for photoproduction from deuterium

Pine, J. and Bazin, M. (1963) π-/π+ ratio for photoproduction from deuterium. Physical Review, 132 (6). pp. 2735-2740. ISSN 0031-899X. http://resolver.caltech.edu/CaltechAUTHORS:PINpr63

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Abstract

The ratio of the π- and π+ photoproduction cross sections from deuterium has been measured for 12 combinations of pion angle and momentum. In terms of the kinematics for γ+p→π++n, the experiment covers photon energies from 165 to 200 MeV and center-of-mass angles from 40 to 145°. The results are corrected to obtain the π-/π+ ratio for free nucleons, and, from comparison with theory, the γ-π-ρ coupling constant Λ is estimated to be +0.1±0.3.


Item Type:Article
Additional Information:© 1963 by The American Physical Society. Received 20 June 1963. We are especially grateful to Dr. F.F. Liu for making available to us his evaluations of the McKinley theory. We would like to thank Lynn Boyer and John Grant for their help with the experimental apparatus. We would also like to acknowledge helpful conversations with Dr. A.E.A. Warburton and Professor G. Feldman, Professor P.T. Matthews, and Professor M. Gourdin. Supported by the joint program of the Atomic Energy Commission, the Office of Naval Research, and the Air Force Office of Scientific Research.
Issue or Number:6
Record Number:CaltechAUTHORS:PINpr63
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:PINpr63
Alternative URL:http://dx.doi.org/10.1103/PhysRev.132.2735
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10541
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 May 2008
Last Modified:26 Dec 2012 10:01

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