Polarization Theorems in Pion Photoproduction

F. Ravndal

doi:10.1103/PhysRevD.2.1278

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Polarization Theorems in Pion Photoproduction

F. Ravndal

California Institute of Technology, Pasadena, California 91109

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Phys. Rev. D 2, 1278 – Published 1 October, 1970

DOI: https://doi.org/10.1103/PhysRevD.2.1278

Abstract

Stichel's theorem relating the state of linearly polarized photons and spin-parity of $t$ -channel exchanges in pion photoproduction is reexamined and generalized. For two specific initial and final nucleon polarization configurations, an exact theorem valid for all photon energies is proved.

References (7)

G. T. Hoff, Phys. Rev. 122, 665 (1961) R. L. Walker, ibid. 182, 1729 (1969)
P. Stichel, Z. Physik 180, 170 (1964)
D. Bellenger et al., Phys. Rev. Letters 23, 540 (1969) Z. Bar-Yam et al., ibid. 24, 1078 (1970) G. D. Palazzi, Rev. Mod. Phys. 40, 611 (1968)
M. Jacob and G. C. Wick, Ann. Phys. (N. Y.) 7, 404 (1959)
L. van Hove, Phys. Letters 24B, 183 (1967) R. P. Feynman, Caltech lectures, 1967 (unpublished)
T. L. Trueman and G. C. Wick, Ann. Phys. (N. Y.) 26, 322 (1964)
Ling-Lie Wang, Phys. Rev. 142, 1187 (1966)

[c1] G. T. Hoff, Phys. Rev. 122, 665 (1961) R. L. Walker, ibid. 182, 1729 (1969)

[c2] P. Stichel, Z. Physik 180, 170 (1964)

[c3] D. Bellenger et al., Phys. Rev. Letters 23, 540 (1969) Z. Bar-Yam et al., ibid. 24, 1078 (1970) G. D. Palazzi, Rev. Mod. Phys. 40, 611 (1968)

[c4] M. Jacob and G. C. Wick, Ann. Phys. (N. Y.) 7, 404 (1959)

[c5] L. van Hove, Phys. Letters 24B, 183 (1967) R. P. Feynman, Caltech lectures, 1967 (unpublished)

[c6] T. L. Trueman and G. C. Wick, Ann. Phys. (N. Y.) 26, 322 (1964)

[c7] Ling-Lie Wang, Phys. Rev. 142, 1187 (1966)

Physical Review D

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Polarization Theorems in Pion Photoproduction

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