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On the origin of anomalous soft photons in muon-proton interactions at high energy

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Zeitschrift für Physik C Particles and Fields

Abstract

We present arguments supporting the conjecture that anomalous prompt photons observed recently in muon-proton interactions by the European Muon Collaboration (EMC) at CERN are of the same dynamical origin as low mass lepton pairs produced in hadronic collisions. The EMC data are found to be in a qualitative agreement with the soft annihilation model. The conjecture implies that the rate of anomalous photon production depends quadratically on the rapidity density of secondary hadrons in the rapidity region of the photon. A study of this dependence is suggested as a crucial test of the conjecture.

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Author notes

  1. J. Piŝút

    Present address: Dept. Theor. Physics, Comenius University, CS-84215, Bratislava, CSSR

Authors and Affiliations

  1. Department of Theoretical Physics, Comenius University, CS-84215, Bratislava, Czechoslovakia

    P. Lichard

  2. Department of Nuclear Physics, Comenius University, CS-84215, Bratislava, Czechoslovakia

    N. Piŝútová

  3. CERN, CH-1211, Geneva 23, Switzerland

    J. Piŝút

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  1. P. Lichard
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  2. N. Piŝútová
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  3. J. Piŝút
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Lichard, P., Piŝútová, N. & Piŝút, J. On the origin of anomalous soft photons in muon-proton interactions at high energy. Z. Phys. C - Particles and Fields 42, 641–648 (1989). https://doi.org/10.1007/BF01557670

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  • DOI: https://doi.org/10.1007/BF01557670

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