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Diagonalizing Tensor Covariants, Light-Cone Commutators, and Sum Rules

Journal Article · · Physical Review. D, Particles Fields
We derive fixed-mass sum rules for virtual Compton scattering the forward direction. We use the methods of both Dicus, Jackiw, and Teplitz (for the absorptive parts) and Heimann, Hey, and Mandula (for the real parts). We find a set of tensor covariansa such that the corresponding scalar amplitudes are proportional to simple t-channel parity-conserving helicity amplitudes. We give a relatively complete discussion of the convergence of the sum rules in a Regge model. (auth)
Research Organization:
Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
Sponsoring Organization:
USDOE
NSA Number:
NSA-29-025266
OSTI ID:
4354404
Journal Information:
Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 8 Vol. 8; ISSN PRVDAQ; ISSN 0556-2821
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

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