Heavy Flavor Physics

Experiment suggested by Bruno Pontecorvo had to investigate if the protons with the highest known at that time energy, 70 GeV, could produce new long-lived hadrons which, in turn, could be trapped in a nuclear target.
The irradiation of the target has been performed in the internal proton beam of the Serpukhov 70 GeV synchrotron, and the spectroscopic analysis of the Al and W samples has been realized in the Laboratory of Nuclear Problems, JINR, Dubna (Former U.S.S.R).

The experiment has set upper limits on the production cross sections of such exotic particles.

The results are published in:
Yadernaya Fizika, 13 (1971) 748.
Title:
Search for a new type of radioactivity in Aluminum and Tungsten targets irradiated by 70-GeV protons
Authors:
A.V. Demyanov, A.V. Kulikov, A.V. Kuptsov, G.G. Mkrtchyan, L.L. Nemenov, B. Pontecorvo, G.I. Smirnov, A.G. Fedunov, D.M. Khazins and Yu.M. Chirkin

A. Argento, ..., G.I. Smirnov et al. (BCDMS Collaboration),
UPPER LIMITS on D⁰ \overline D⁰ MIXING and B-\overline B PRODUCTION FROM MUON -- NUCLEON SCATTERING.
Phys. Lett. 158B (1985) 531

Charm physics and exotics are among physics objectives of the experiment COMPASS at CERN.

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