Proton-Proton Scattering at 437 Mev

R. B. Sutton; T. H. Fields; J. G. Fox; J. A. Kane; W. E. Mott; R. A. Stallwood

doi:10.1103/PhysRev.97.783

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Proton-Proton Scattering at 437 Mev

R. B. Sutton, T. H. Fields, J. G. Fox, J. A. Kane, W. E. Mott^*, and R. A. Stallwood

Carnegie Institute of Technology, Pittsburgh, Pennsylvania

^*Now at Gulf Research Laboratory, Harmarville, Pennsylvania.

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Phys. Rev. 97, 783 – Published 1 February, 1955

DOI: https://doi.org/10.1103/PhysRev.97.783

Abstract

This paper is a detailed account of measurements, already briefly reported, of the angular distribution of proton-proton scattering at 437 Mev. A description is given of the external proton beam: its collimation, angular spread, energy spectrum, and intensity. The counters, electronics, and targets are described. Two scattering arrangements were used. In one the polyethylene-carbon subtraction method with coincidence detection of the scattered and recoil protons was employed. In the other a counter telescope detected the protons emerging at a given angle from a liquid hydrogen target; at the larger angles but not at the smaller the scattered pairs could also be detected by coincidences between the telescope and another counter. At the smaller angles, when coincidence counting could not be used to insure detection of elastic $p - p$ scattering, precautions were taken to absorb the particles produced in inelastic $p - p$ collisions. The results are that the differential cross section for elastic proton-proton scattering rises smoothly from its value at 90° c.m. to a value about 20 percent higher at 17° c.m. The value at 90° c.m. is 3.49±0.17 mb/sterad.

References (23)

Mott, Sutton, Fox, and Kane, Phys. Rev. 90, 712 (1953)
Sutton, Fields, Fox, Kane, Mott, and Stallwood, Phys. Rev. 95, 663 (1954)
Marshall, Marshall, and Nedzel [Phys. Rev. 92, 834 (1953)] [ 93, 1431 (1954)]
Chamberlain, Segrè, and Wiegand, Phys. Rev. 83, 923 (1951)
Marshall, Marshall, and Nedzel, Phys. Rev. 92, 834 (1953)
Chamberlain, Pettengill, Segrè, and Wiegand, Phys. Rev. 93, 1424 (1954)
O. A. Towler, Phys. Rev. 85, 1024 (1952)
C. L. Oxley and R. D. Schamberger, Phys. Rev. 85, 416 (1952)
Cassels, Pickavance, and Stafford, Proc. Roy. Soc. (London) 214, 262 (1952)
Kruse, Teem, and Ramsey, Phys. Rev. 94, 1795 (1954)
A. Garren, Phys. Rev. 92, 213 (1953)
R. M. Thaler and J. Bengston, Phys. Rev. 93, 643 (1954) Thaler, Bengston, and Breit, 93, 644 (1954)
Chamberlain, Segrè, Tripp, Wiegand, and Ypsilantis, Phys. Rev. 93, 1430 (1954)
de Carvalho, Heiberg, Marshall, and Marshall, Phys. Rev. 94, 1796 (1954)
Kane, Stallwood, Sutton, Fields, and Fox, Phys. Rev. 95, 1694 (1954)
D. Feldman, Phys. Rev. 89, 1159 (1953)
Aron, Hoffman, and Williams, Atomic Energy Commission Report AECU-663, 1949 (unpublished) W. Aron, University of California Radiation Laboratory Report UCRL-1325, 1951 (unpublished)
S. DeBenedetti and H. Richings, Rev. Sci. Inst. 23, 37 (1952)
Fields, Fox, Kane, Stallwood, and Sutton, Phys. Rev. 95, 638 (1954)
A. H. Rosenfeld, Phys. Rev. 95, 638 (1954)
Kruse, Teem, and Ramsey ([10])
A. J. Hartzler and R. T. Siegel, Phys. Rev. 95, 185 (1954)
Hartzler, Siegel, and Optiz, Phys. Rev. 95, 591 (1954)

[c1] Mott, Sutton, Fox, and Kane, Phys. Rev. 90, 712 (1953)

[c2] Sutton, Fields, Fox, Kane, Mott, and Stallwood, Phys. Rev. 95, 663 (1954)

[c3] Marshall, Marshall, and Nedzel [Phys. Rev. 92, 834 (1953)] [ 93, 1431 (1954)]

[c4] Chamberlain, Segrè, and Wiegand, Phys. Rev. 83, 923 (1951)

[c5] Marshall, Marshall, and Nedzel, Phys. Rev. 92, 834 (1953)

[c6] Chamberlain, Pettengill, Segrè, and Wiegand, Phys. Rev. 93, 1424 (1954)

[c7] O. A. Towler, Phys. Rev. 85, 1024 (1952)

[c8] C. L. Oxley and R. D. Schamberger, Phys. Rev. 85, 416 (1952)

[c9] Cassels, Pickavance, and Stafford, Proc. Roy. Soc. (London) 214, 262 (1952)

[c10] Kruse, Teem, and Ramsey, Phys. Rev. 94, 1795 (1954)

[c11] A. Garren, Phys. Rev. 92, 213 (1953)

[c12] R. M. Thaler and J. Bengston, Phys. Rev. 93, 643 (1954) Thaler, Bengston, and Breit, 93, 644 (1954)

[c13] Chamberlain, Segrè, Tripp, Wiegand, and Ypsilantis, Phys. Rev. 93, 1430 (1954)

[c14] de Carvalho, Heiberg, Marshall, and Marshall, Phys. Rev. 94, 1796 (1954)

[c15] Kane, Stallwood, Sutton, Fields, and Fox, Phys. Rev. 95, 1694 (1954)

[c16] D. Feldman, Phys. Rev. 89, 1159 (1953)

[c17] Aron, Hoffman, and Williams, Atomic Energy Commission Report AECU-663, 1949 (unpublished) W. Aron, University of California Radiation Laboratory Report UCRL-1325, 1951 (unpublished)

[c18] S. DeBenedetti and H. Richings, Rev. Sci. Inst. 23, 37 (1952)

[c19] Fields, Fox, Kane, Stallwood, and Sutton, Phys. Rev. 95, 638 (1954)

[c20] A. H. Rosenfeld, Phys. Rev. 95, 638 (1954)

[c21] Kruse, Teem, and Ramsey ([10])

[c22] A. J. Hartzler and R. T. Siegel, Phys. Rev. 95, 185 (1954)

[c23] Hartzler, Siegel, and Optiz, Phys. Rev. 95, 591 (1954)

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Proton-Proton Scattering at 437 Mev

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