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ISSN - 03702693, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2011, vol. 703, p. 543-546

Search for narrow resonances in e+e- annihilation between 1.85 and 3.1 GeV with the KEDR detector

Anashin V. V., Aulchenko V. M., Baldin E. M., Barladyan A. K., Barnyakov A. Y., Barnyakov M. Y., Baru S. E., Basok I. Y., Beloborodova O. L., Blinov A. E., Blinov V. E., Bobrov A. V., Bobrovnikov V. S., Bogomyagkov A. V., Bondar A. E., Buzykaev A. R., Eidelman S. I., Grigoriev D. N., Glukhovchenko Yu M., Gulevich V. V., Gusev D. V., Karnaev S. E., Karpov G. V., Karpov S. V., Kharlamova T. A., Kiselev V. A., Kolmogorov V. V., Kononov S. A., Kotov K. Yu, Kravchenko E. A., Kudryavtsev V. N., Kulikov V. F., Kurkin G. Ya, Kuper E. A., Levichev E. B., Maksimov D. A., Malyshev V. M., Maslennikov A. L., Medvedko A. S., Meshkov O. I., Mishnev S. I., Morozov I. I., Muchnoi N. Yu, Neufeld V. V., Nikitin S. A., Nikolaev I. B., Okunev I. N., Onuchin A. P., Oreshkin S. B., Orlov I. O., Osipov A. A., Peleganchuk S. V., Pivovarov S. G., Piminov P. A., Petrov V. V., Poluektov A. O., Prisekin V. G., Ruban A. A., Sandyrev V. K., Savinov G. A., Shamov A. G., Shatilov D. N., Shwartz B. A., Simonov E. A., Sinyatkin S. V., Skrinsky A. N., Smaluk V. V., Sokolov A. V., Sukharev A. M., Starostina E. V., Talyshev A. A., Tayursky V. A., Telnov V. I.

We report results of a search for narrow resonances in e+e- annihilation at center-of-mass energies between 1.85 and 3.1 GeV performed with the KEDR detector at the VEPP-4M e+e- collider. The upper limit on the leptonic width of a narrow resonance Γee R.Br(R→hadr)<120 eV has been obtained (at 90% C.L.). © 2011 Elsevier B.V.