Production of real photons at large transverse momentum in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>π</mi><mi>p</mi></math></span> collisions

D. Jones; R. Rückl

doi:10.1103/PhysRevD.20.232

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Production of real photons at large transverse momentum in $π p$ collisions

D. Jones

R. Rückl^*

Department of Physics, University of California, Davis, California 95616

Department of Physics, University of California, Los Angeles, California 90024 and Max-Planck-Institut für Physik and Astrophysik, München, Federal Republic of Germany

^*Present address.

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Phys. Rev. D 20, 232 – Published 1 July, 1979

DOI: https://doi.org/10.1103/PhysRevD.20.232

Abstract

The production of photons at large transverse momentum can be used as a direct probe of the short-distance dynamics of hadronic collisions. We calculate the cross section for high- $p_{T}$ photons produced in $π p$ collisions from lowest-order quantum-chromodynamics (QCD) and higher-order constituent-interchange-model (CIM) processes. We investigate characteristic features of the QCD and CIM contributions, respectively, and discuss the experimental indicators of the presence of CIM contributions. We emphasize the frequent production of single-photon jets.

References (11)

J. F. Owens, E. Reya, and M. Glück, Florida State reports, 1977 (unpublished) R. D. Field, Phys. Rev. Lett. 40, 997 (1978) [7,8]
Omitted endnote
J. D. Bjorken and E. Paschos, Phys. Rev. 185, 1975 (1969) G. R. Farrar, Phys. Lett. 67B, 337 (1977) H. Fritzsch and P. Minkowski, ibid. 69B, 316 (1977) F. Halzen and D. M. Scott, Phys. Rev. Lett. 40, 1117 (1978)
R. Rückl, S. J. Brodsky, and J. F. Gunion, Phys. Rev. D 18, 2469 (1978)
W. Caswell, R. Horgan, and S. J. Brodsky, Phys. Rev. D 18, 2415 (1978)
[1] W. Caswell, R. Horgan, and S. J. BrodskyIn the Proceedings of the Workshop on High Transverse Momentum Phenomena, Bielefeld, 1977 (unpublished)
R. Blankenbecler, S. J. Brodsky, and J. F. Gunion, Phys. Rev. D 18, 900 (1978)
D. Jones and J. F. Gunion, Phys. Rev. D 19, 867 (1979) J. F. Gunion, talk presented at SLAC Meeting on Large Transverse Momentum Phenomena, 1978, U.C. Davis report (unpublished)
Appendix A of [4]
G. Donaldson et al., Phys. Rev. Lett. 36, 1110 (1976)
F. Halzen and D. M. Scott, Phys. Rev. D 18, 3378 (1978)

[c1] J. F. Owens, E. Reya, and M. Glück, Florida State reports, 1977 (unpublished) R. D. Field, Phys. Rev. Lett. 40, 997 (1978) [7,8]

[c2] Omitted endnote

[c3] J. D. Bjorken and E. Paschos, Phys. Rev. 185, 1975 (1969) G. R. Farrar, Phys. Lett. 67B, 337 (1977) H. Fritzsch and P. Minkowski, ibid. 69B, 316 (1977) F. Halzen and D. M. Scott, Phys. Rev. Lett. 40, 1117 (1978)

[c4] R. Rückl, S. J. Brodsky, and J. F. Gunion, Phys. Rev. D 18, 2469 (1978)

[c5] W. Caswell, R. Horgan, and S. J. Brodsky, Phys. Rev. D 18, 2415 (1978)

[c6] [1] W. Caswell, R. Horgan, and S. J. BrodskyIn the Proceedings of the Workshop on High Transverse Momentum Phenomena, Bielefeld, 1977 (unpublished)

[c7] R. Blankenbecler, S. J. Brodsky, and J. F. Gunion, Phys. Rev. D 18, 900 (1978)

[c8] D. Jones and J. F. Gunion, Phys. Rev. D 19, 867 (1979) J. F. Gunion, talk presented at SLAC Meeting on Large Transverse Momentum Phenomena, 1978, U.C. Davis report (unpublished)

[c9] Appendix A of [4]

[c10] G. Donaldson et al., Phys. Rev. Lett. 36, 1110 (1976)

[c11] F. Halzen and D. M. Scott, Phys. Rev. D 18, 3378 (1978)

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Production of real photons at large transverse momentum in $π p$ collisions

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Production of real photons at large transverse momentum in πp collisions

Abstract

References (11)

Production of real photons at large transverse momentum in $π p$ collisions