Phenomenology of Multipion Production in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mrow><mover><mrow><mi>p</mi></mrow><mrow><mi>¯</mi></mrow></mover></mrow></mrow><mi>p</mi></math> Annihilation Based on an Analysis of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mrow><mover><mrow><mi>p</mi></mrow><mrow><mi>¯</mi></mrow></mover></mrow></mrow><mi>p</mi><mo>→</mo><mn>5</mn><mi>π</mi></math> at 3.25 GeV/c

R. Rajaraman; R. P. Jain

doi:10.1103/PhysRevD.4.2768

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Phenomenology of Multipion Production in $\bar{p} p$ Annihilation Based on an Analysis of $\bar{p} p \to 5 π$ at 3.25 GeV/c

R. Rajaraman and R. P. Jain

Department of Physics and Astrophysics, University of Delhi, Delhi-7, India

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Phys. Rev. D 4, 2768 – Published 1 November, 1971

DOI: https://doi.org/10.1103/PhysRevD.4.2768

Abstract

We analyze some data for the reaction $\bar{p} p \to 2 π^{+} 2 π^{-} π^{0}$ at 3.25 GeV/c. We study the dependence on different momentum-transfer variables, momentum distributions, and charge distributions. We compare the behavior with well-known characteristics of $π p \to nucleon + pions$ and $pp \to (2 nucleons) + pions$ . We also compare the data with computer-generated events constrained only by Lorentz-invariant phase space (LIPS). We find that the data agree in many respects with LIPS. Apart from a few statistically significant features mentioned in the text, the data show little dependence on the momenta or the charges. This is in sharp contrast with the pions produced in $π p$ , $Kp$ , or $pp$ inelastic scattering. We discuss the result and its implications about annihilation processes and give arguments as to why our result might be valid at higher energies as well.

References (14)

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Omitted endnote
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Omitted endnote

[c1] T. Ferbel et al., Phys. Rev. 137, B1250 (1965)

[c2] G. Cocconi, Phys. Rev. 111, 1699 (1958) R. K. Adair, ibid. 172, 1370 (1968)

[c3] [R. Honecker et al., Nucl. Phys. B13, 571 (1969)] [J. F. de Beer et al., Can. J. Phys. 46, 737 (1968)]

[c4] M. L. Good and W. D. Walker, Phys. Rev. 120, 1857 (1960) T. T. Chou and C. N. Yang, ibid. 175, 1832 (1968)

[c5] A. Bialas et al., Nucl. Phys. B11, 479 (1969) J. Bartsch et al., ibid. B19, 381 (1970)

[c6] L. Van Hove, CERN Report No. CERN-TH-1209, 1970 (unpublished)

[c7] H. Satz, Phys. Letters 32B, 380 (1970)

[c8] R. Rajaraman, Phys. Rev. D 1, 118 (1970)

[c9] J. J. J. Kokkeddee, Nuovo Cimento 43, 919 (1966) R. Henzi, A. Kotanski, D. Morgan, and L. Van Hove, Nucl. Phys. B16, 1 (1970)

[c10] R. P. Feynman, Phys. Rev. Letters 23, 1415 (1969)

[c11] E. Fermi, Phys. Rev. 81, 683 (1951)

[c12] Omitted endnote

[c13] I. Bar-Nir et al., Nucl. Phys. B20, 45 (1970)

[c14] Omitted endnote

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Phenomenology of Multipion Production in $\bar{p} p$ Annihilation Based on an Analysis of $\bar{p} p \to 5 π$ at 3.25 GeV/c

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Phenomenology of Multipion Production in p¯p Annihilation Based on an Analysis of p¯p→5π at 3.25 GeV/c

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Phenomenology of Multipion Production in $\bar{p} p$ Annihilation Based on an Analysis of $\bar{p} p \to 5 π$ at 3.25 GeV/c