Production Cross Sections for <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>π</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span>- and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>π</mi></mrow><mrow><mo>−</mo></mrow></msup></mrow></math></span>-Mesons by 340-Mev Protons on Carbon and Lead at 90° to the Beam

C. Richman; M. Weissbluth; H. A. Wilcox

doi:10.1103/PhysRev.85.161

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Production Cross Sections for $π^{+}$ - and $π^{-}$ -Mesons by 340-Mev Protons on Carbon and Lead at 90° to the Beam

C. Richman, M. Weissbluth^*, and H. A. Wilcox^†

Radiation Laboratory, Department of Physics, University of California, Berkeley, California

^*Now at Stanford University, Stanford, California.
^†Now at the Naval Ordance Test Station, China Lake, California.

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Phys. Rev. 85, 161 – Published 15 January, 1952

DOI: https://doi.org/10.1103/PhysRev.85.161

Abstract

Carbon and lead targets were bombarded by 340-Mev protons produced by the Berkeley 184-inch synchrocyclotron. The spectrum of $π^{+}$ - and $π^{+}$ -mesons produced at 90°±12° to the beam was measured by the use of nuclear emulsions embedded in absorbers. The total cross section for the production of $π^{+}$ -mesons from carbon at this angle is (2.3±0.5)· $10^{- 28}$ ${cm}^{2}$ ${ster}^{- 1}$ , and the $π^{+}$ to $π^{-}$ ratio is 5.1±1.0. For lead the cross section for $π^{+}$ -mesons at this angle is (7±2.1)· $10^{- 28}$ ${cm}^{2}$ ${ster}^{- 1}$ and the $π^{+}$ to $π^{-}$ ratio is 1.5±0.4.

References (15)

E. Gardner and C. M. G. Lattes, Science 107, 270 (1948)
Omitted endnote
Cartwright, Richman, Whitehead, and Wilcox, Phys. Rev. 78, 823 (1950)
Lattes, Muirhead, Occhialini, and Powell, Nature 159, 694 (1947) Lattes, Occhialini, and Powell, 160, 453, 486 (1947) Burfening, Gardner, and Lattes, Phys. Rev. 75, 382 (1949)
D. H. Perkins, Nature 159, 126 (1947) Lattes, Occhialini, and Powell, 160, 453, 486 (1947)
F. L. Adelman and S. B. Jones, Phys. Rev. 75, 1468(A) (1949)
E. P. George and J. Evans, Proc. Phys. Soc. (London) 64, 193 (1951)
Chamberlain, Mozeley, Steinberger, and Wiegand, Phys. Rev. 79, 394 (1950)
Lederman, Booth, Byfield, and Kessler, Phys. Rev. 83, 685 (1951)
G. F. Chew and J. L. Steinberger, Phys. Rev. 78, 497 (1950)
Block, Passman, and Havens, Phys. Rev. 83, 167 (1951)
E. M. Henley and R. H. Huddlestone, Phys. Rev. 82, 754 (1951)
M. N. Whitehead and C. Richman, Phys. Rev. 83, 855 (1951)
Passman, Block, and Havens, Phys. Rev. 83, 167 (1951)
the Physical Society meeting at Stanford University in December, 1949 Phys. Rev. 78, 496 (1950)

[c1] E. Gardner and C. M. G. Lattes, Science 107, 270 (1948)

[c2] Omitted endnote

[c3] Cartwright, Richman, Whitehead, and Wilcox, Phys. Rev. 78, 823 (1950)

[c4] Lattes, Muirhead, Occhialini, and Powell, Nature 159, 694 (1947) Lattes, Occhialini, and Powell, 160, 453, 486 (1947) Burfening, Gardner, and Lattes, Phys. Rev. 75, 382 (1949)

[c5] D. H. Perkins, Nature 159, 126 (1947) Lattes, Occhialini, and Powell, 160, 453, 486 (1947)

[c6] F. L. Adelman and S. B. Jones, Phys. Rev. 75, 1468(A) (1949)

[c7] E. P. George and J. Evans, Proc. Phys. Soc. (London) 64, 193 (1951)

[c8] Chamberlain, Mozeley, Steinberger, and Wiegand, Phys. Rev. 79, 394 (1950)

[c9] Lederman, Booth, Byfield, and Kessler, Phys. Rev. 83, 685 (1951)

[c10] G. F. Chew and J. L. Steinberger, Phys. Rev. 78, 497 (1950)

[c11] Block, Passman, and Havens, Phys. Rev. 83, 167 (1951)

[c12] E. M. Henley and R. H. Huddlestone, Phys. Rev. 82, 754 (1951)

[c13] M. N. Whitehead and C. Richman, Phys. Rev. 83, 855 (1951)

[c14] Passman, Block, and Havens, Phys. Rev. 83, 167 (1951)

[c15] the Physical Society meeting at Stanford University in December, 1949 Phys. Rev. 78, 496 (1950)

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Production Cross Sections for $π^{+}$ - and $π^{-}$ -Mesons by 340-Mev Protons on Carbon and Lead at 90° to the Beam

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Production Cross Sections for π+- and π−-Mesons by 340-Mev Protons on Carbon and Lead at 90° to the Beam

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Production Cross Sections for $π^{+}$ - and $π^{-}$ -Mesons by 340-Mev Protons on Carbon and Lead at 90° to the Beam