Reconsideration of the Electron-Neutron Scattering Length As Measured by the Scattering of Thermal Neutrons by Noble Gases

V. E. Krohn; G. R. Ringo

doi:10.1103/PhysRevD.8.1305

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Reconsideration of the Electron-Neutron Scattering Length As Measured by the Scattering of Thermal Neutrons by Noble Gases

V. E. Krohn and G. R. Ringo

Argonne National Laboratory, Argonne, Illinois 60439

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Phys. Rev. D 8, 1305 – Published 1 September, 1973

DOI: https://doi.org/10.1103/PhysRevD.8.1305

Abstract

Our value for the electron-neutron scattering length has been corrected on the basis of new measurements of some neutron scattering lengths and now is (-1.30±0.03) × $10^{- 16}$ cm, which is 3% lower than our original result. (The equivalent figure in the Fermi convention is -3630±70 eV and at $q = 0$ , $\frac{d G_{En}}{d q^{2}} = 0.0189 \pm 0.0004$ ${fm}^{2}$ .) A check on the worrisome possibility of an $H_{2}$ impurity in the scattering gases showed that is quite unlikely to be a significant source of error. The difference between our result and the Munich measurement and also the Foldy calculation thus continues unexplained.

Comments & Replies

Neutron charge radius and the quark-parton model

D. Parashar and R. S. Kaushal

Phys. Rev. D 13, 2684 (1976)

References (13)

Nicholas Nucker, Z. Phys. 227, 152 (1969)
W. Dilg and H. Vonach, Z. Naturforsch. A26, 442 (1971)
L. Koester, private communication
V. E. Krohn and G. R. Ringo, Phys. Rev. 148, 1303 (1966)
E. Fermi and L. Marshall, Phys. Rev. 72, 1139 (1947)
L. L. Foldy, Phys. Rev. 83, 688 (1951) Rev. Mod. Phys. 30, 471 (1958)
W. Dilg, L. Koester, and W. Nistler, Phys. Lett. 36B, 208 (1971)
L. Koester, private communication
J. H. Burns, P. A. Agron, and H. A. Levy, in Noble Gas Compounds, edited by H. H. Hyman (Univ. Chicago Press, Chicago, 1963), p. 211
M. F. Crouch, V. E. Krohn, and G. R. Ringo, Phys. Rev. 102, 1321 (1956)
A. D. MacQuillan, Proc. R. Soc. Lond. A204, 309 (1950)
Yu. A. Alexandrov, R. P. Ozerov, and N. V. Ranev, Zh. Eksp. Teor. Fiz. Pis'ma Red. 15, 398 (1972) [JETP Lett. 15, 280 (1972)] Yu. A. Alexandrov and V. K. Ignatovich, Joint Institute of Nuclear Research Report No. E3-6294, 1972 (unpublished)
C. G. Shull, private communication

[c1] Nicholas Nucker, Z. Phys. 227, 152 (1969)

[c2] W. Dilg and H. Vonach, Z. Naturforsch. A26, 442 (1971)

[c3] L. Koester, private communication

[c4] V. E. Krohn and G. R. Ringo, Phys. Rev. 148, 1303 (1966)

[c5] E. Fermi and L. Marshall, Phys. Rev. 72, 1139 (1947)

[c6] L. L. Foldy, Phys. Rev. 83, 688 (1951) Rev. Mod. Phys. 30, 471 (1958)

[c7] W. Dilg, L. Koester, and W. Nistler, Phys. Lett. 36B, 208 (1971)

[c8] L. Koester, private communication

[c9] J. H. Burns, P. A. Agron, and H. A. Levy, in Noble Gas Compounds, edited by H. H. Hyman (Univ. Chicago Press, Chicago, 1963), p. 211

[c10] M. F. Crouch, V. E. Krohn, and G. R. Ringo, Phys. Rev. 102, 1321 (1956)

[c11] A. D. MacQuillan, Proc. R. Soc. Lond. A204, 309 (1950)

[c12] Yu. A. Alexandrov, R. P. Ozerov, and N. V. Ranev, Zh. Eksp. Teor. Fiz. Pis'ma Red. 15, 398 (1972) [JETP Lett. 15, 280 (1972)] Yu. A. Alexandrov and V. K. Ignatovich, Joint Institute of Nuclear Research Report No. E3-6294, 1972 (unpublished)

[c13] C. G. Shull, private communication

Physical Review D

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Reconsideration of the Electron-Neutron Scattering Length As Measured by the Scattering of Thermal Neutrons by Noble Gases

Abstract

Comments & Replies

Neutron charge radius and the quark-parton model

References (13)

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