Study of the low mass dimuon continuum produced in hadronic interactions

doi:10.1016/0370-2693(84)91359-5

Physics Letters B

Volume 142, Issues 5–6, 2 August 1984, Pages 446-450

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Abstract

We present here the analysis of low mass dimuon events (1.8 < M_{μμ < 2.6 GeV/c²}) produced by positive and negative pion and proton beams at 200 GeV/c. Using the difference between the π^- and the π⁺ cross sections, and comparing to the Drell-Yan model, we find a K-factor of 2.47 ± 0.5. Only about $12$ of the events can be attributed to the Drell-Yan mechanism. If the remaining events are attributed to muonic decays of D mesons we findan upper limit for the cross section of charmed meson production.

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³: We are grateful to the members of the SPS operating crew and the experimental Areas group. We finally would like to express our deep gratitude to the engineering and technical staff of our collaboration for the outstanding contribution to the design, construction and operation of our apparatus.

¹: Present address: Agence pour la Maîtrise de l'Energie, Paris, France.

²: Present address: CERN, Geneva, Switzerland.

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Study of the low mass dimuon continuum produced in hadronic interactions

Abstract

Phys. Lett.

Phys. Lett.

Phys. Rev. Lett.

Z. Phys.

Z. Phys.

Phys. Lett.

Phys. Lett.