Orbital-Angular-Momentum Structure of the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>A</mi></mrow><mrow><mn>1</mn></mrow></msub></mrow></math></span> Meson

J. Ballam; A. D. Brody; G. B. Chadwick; Z. G. T. Guiragossián; W. B. Johnson; R. R. Larsen; D. W. G. S. Leith; K. Moriyasu

doi:10.1103/PhysRevD.1.94

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Orbital-Angular-Momentum Structure of the $A_{1}$ Meson

J. Ballam, A. D. Brody, G. B. Chadwick, Z. G. T. Guiragossián, W. B. Johnson, R. R. Larsen, D. W. G. S. Leith, and K. Moriyasu

Stanford Linear Accelerator Center, Stanford University, Stanford, California 94305

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Phys. Rev. D 1, 94 – Published 1 January, 1970

DOI: https://doi.org/10.1103/PhysRevD.1.94

Abstract

The orbital angular momentum of the $A_{1}$ meson produced from $π^{-} p \to π^{-} π^{-} π^{+} p$ at 16 GeV/c was studied by analyzing the decay angular distributions in the $ρ^{0} π^{-}$ state. A completely Bose-symmetrized formalism was used to measure the ratio $\frac{g_{1}}{g_{0}}$ of the helicity states of the $ρ$ from the $A_{1}$ decay. The value obtained, $| \frac{g_{1}}{g_{0}} | = 0.48 \pm 0.13$ , indicates a substantial $d$ -wave contribution in the $A_{1}$ decay.

References (14)

F. J. Gilman and H. Harari, Phys. Rev. 165, 1803 (1968) H. J. Lipkin, ibid. 176, 1709 (1968) H. J. Schnitzer and S. Weinberg, ibid. 164, 1828 (1967) S. G. Brown and G. B. West, MIT and Harvard University Report, 1969 (unpublished)
J. Ballam et al., Phys. Rev. Letters 21, 934 (1968)
G. Ascoli et al., Phys. Rev. Letters 20, 1411 (1968)
C. Zemach, Phys. Rev. 133, B1201 (1964) ibid.139, B97 (1965) ibid.140, B109 (1965)
S. Berman and M. Jacob, Phys. Rev. 139, B1023 (1965)
K. Gottried and J. D. Jackson, Nuovo Cimento 33, 309 (1964)
Omitted endnote
R. Diebold, CERN Report No./TC/PROG. 64-25, 1964 (unpublished)
D. R. O. Morrison, Phys. Letters 25B, 238 (1967)
Omitted endnote
J. Bartsch et al., Phys. Letters 27B, 336 (1968)
G. Wolf, Phys. Rev. 182, 1538 (1969)
F. Gilman, Stanford Linear Accelerator Center, Stanford University, Stanford, Calif. (private communication)
M. Jacob and G. C. Wick, Ann. Phys. (N. Y.) 7, 404 (1959)

[c1] F. J. Gilman and H. Harari, Phys. Rev. 165, 1803 (1968) H. J. Lipkin, ibid. 176, 1709 (1968) H. J. Schnitzer and S. Weinberg, ibid. 164, 1828 (1967) S. G. Brown and G. B. West, MIT and Harvard University Report, 1969 (unpublished)

[c2] J. Ballam et al., Phys. Rev. Letters 21, 934 (1968)

[c3] G. Ascoli et al., Phys. Rev. Letters 20, 1411 (1968)

[c4] C. Zemach, Phys. Rev. 133, B1201 (1964) ibid.139, B97 (1965) ibid.140, B109 (1965)

[c5] S. Berman and M. Jacob, Phys. Rev. 139, B1023 (1965)

[c6] K. Gottried and J. D. Jackson, Nuovo Cimento 33, 309 (1964)

[c7] Omitted endnote

[c8] R. Diebold, CERN Report No./TC/PROG. 64-25, 1964 (unpublished)

[c9] D. R. O. Morrison, Phys. Letters 25B, 238 (1967)

[c10] Omitted endnote

[c11] J. Bartsch et al., Phys. Letters 27B, 336 (1968)

[c12] G. Wolf, Phys. Rev. 182, 1538 (1969)

[c13] F. Gilman, Stanford Linear Accelerator Center, Stanford University, Stanford, Calif. (private communication)

[c14] M. Jacob and G. C. Wick, Ann. Phys. (N. Y.) 7, 404 (1959)

Physical Review D

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Orbital-Angular-Momentum Structure of the $A_{1}$ Meson

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Orbital-Angular-Momentum Structure of the A1 Meson

Abstract

References (14)

Orbital-Angular-Momentum Structure of the $A_{1}$ Meson