Electro-pion production on 16O to bou nd states of the residual nuclei

doi:10.1016/0370-2693(83)91524-1

Physics Letters B

Volume 130, Issue 6, 3 November 1983, Pages 369-372

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Abstract

Differential cross sections for the reactions $^{16} O (γ,_{π^{−}}^{π^{+}} −)_{16_{F}}^{16_{F}}$ to the sum of the four lowest lying states in ¹⁶F and ¹⁶N have been measured as a function of angle for pions with a kinetic energy of 30 MeV. The extracted ratios $R = σ(γ, π^{−}) σ(γ, π^{+})$ , the first ones to discrete final states as a function of angle, are in fair agreement with results obtained for the nucleon. For positive pions the energy dependence of the cross section has been measured at the angles of 45° and 90°. Distorted wave impulse approximation calculations fail to describe the energy dependence.

References (17)

M.K. Singham et al.
Ann. Phys.
(1981)
L. Tiator et al.
Nucl. Phys.
(1982)
Ch. Schmitt et al.
Nucl. Phys.
(1983)
F.R. Kane et al.
Phys. Lett.
(1973)
A.M. Bernstein
P.E. Bosted et al.
Phys. Rev. Lett.
(1980)
H. Genzel and W. Pfeil, in: Landolt-Börnstein, New Series, Group 1, Vol. 8, ed. H....
M.I. Adamovich et al.
Sov. J. Nucl. Phys.
(1968)

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Cited by (2)

Photoproduction of charged pions on 16O to bound states of the nuclei 16N and 16F
1987, Nuclear Physics, Section A
Positive and negative pions have been measured in an electroproduction experiment. Photoproduction cross sections have been extracted from the data via virtual photon theory. Angular distributions and energy dependencies of the photoproduction cross sections have been obtained in the energy range of 30 MeV ⩽ T_π ⩽ 70 MeV. The data are compared with various calculations based on the DWIA approximation. The measured $π^{−} π^{+}$ ratio as a function of the production angle agrees rather well with the ratio on the nucleon.
(16,+)16N reaction at 320 MeV photon energy
1987, Physical Review C

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Physics Letters B

Abstract

References (17)

Ann. Phys.

Nucl. Phys.

Nucl. Phys.

Phys. Lett.

Phys. Rev. Lett.

Sov. J. Nucl. Phys.

Cited by (2)

Photoproduction of charged pions on <sup>16</sup>O to bound states of the nuclei <sup>16</sup>N and <sup>16</sup>F

(16,+)16N reaction at 320 MeV photon energy